Wireman - 1st Semester - Module 1: Safety Practice and ... · Wireman - 1st Semester - Module 1:...

Wireman - 1st Semester - Module 1: Safety Practice and Hand Tools

Questions: Level 1 1 What is the expansion of ABC in first aid

treatment? A Airway Bleeding Circulation B Airway Breathing Circulation C Airway Breathing Carefulness D Accident Breathing Carefulness 2 Which is the colour code of warning signs? A White symbol on blue background B White symbol on green background C Red border and cross bar, black symbol on

white D Yellow background with black border and

symbol 3 What is the name of the tool?

A Combination plier B Wire stripper C Crimping tool D Side cutter

- NIMI Question Bank - Page1/ 4

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Date:01-April-2019 Version 1.0

Questions: Level 2 1 Which resuscitation method is suitable to an

injured victim with closed mouth? A Schafer’s method B Mouth to nose method C Mouth to mouth method D Nelsocis back pressure method 2 What immediate action to be taken to

rescue the victim if the victim is still in contact with the supply?

A Break the contact by switching off the power

B Inform your authority about this electric shock

C Call someone for helping to remove him from contact

D Pull or push him from the contact by hand or your body

3 Which category of basic sign refers to avoid naked flame?

A Warning signs B Mandatory signs C Information signs D Prohibition signs 4 Why the yellow thick continuous border line

marked on the road side? A Show the boundary of road B Vehicle do not cross C One way traffic intimation D Do not cross pedestrian 5 Which type of fire extinguisher is used for

fire on electrical equipment? A Foam extinguisher B Water filled extinguisher C Stored pressure type extinguisher D Halon extinguisher 6 What will be your first action when a fire

breaks out in the work place? A Identify the type of fire B Search for a fire extinguisher C Shout fire and give caution to the people

nearby D Call the fire fighting peoples

7 Which category, the fire due to gas and liquefiable gas comes under?

A Class ’C’ fire B Class ’A’ fire C Class ’D’ fire D Class ’B’ fire 8 What is ‘smothering’ in extinguishing of fire? A Adding the fuel from fire B Removing the fuel from fire C Isolating the heat from fire D Isolating the supply of oxygen from fire 9 Which purpose leather aprons are used as

personal protective equipment? A Ear protection B Eye protection C Body protection D Face protection 10 Which Personal Protective Equipment

(PPE) is a used for eye protection? A Helmet B Goggles C Nose mask D Leather aprons 11 Which is the most important condition for

selection of PPE? A Nature and security of the hazard B Conformity to Indian/International standards C Easy maintenance D Comfortability of the workman 12 Which screwdriver is used for driving star

headed screw? A Connector screwdriver B Philips screw driver C Heavy-duty screwdriver D Insulated screw driver 13 Which pliers are used for holding small

objects in deep narrow space? A Long nose pliers B Round nose pliers C Side cutting pliers D Combination pliers



Questions: Level 3 1 What is the best solution to make the

employee to “wear PPE” compulsory? A Easy maintenance and clean PPE can be

provided B International standard can be provided test

certified PPE C To make wearing of PPE is mandatory for

every employee D Awareness programme may be conducted

about the use of PPE 2 What will happen to the worker if a

punctured insulated combination plier used for electrical work?

A Can work safely B Cannot hold the job tightly C Worker will get shock D Combination plier will get damaged

Module: 1 - Safety Practice and Hand Tools - Key paper

Questions: Level 1 Questions: Level 2 Question: Level 3

SL.No Key SL.No Key SL.No Key 1 B 1 B 1 C 2 D 2 A 2 C 3 C 3 D

4 B 5 D 6 C 7 A 8 D 9 C 10 B 11 A

12 B 13 A


Wireman - 1st Semester - Module 2 : Wiring Joints and Soldering

Questions: Level 1 1 What is the name of the wire joint?

A Aerial tap joint B ‘T’ joint C Knotted tap joint D Plain tap joint 2 What is the name of the soldering?

A DIP soldering B Temperature controlled soldering C Soldering with soldering gun D Soldering with blow lamp 3 Which is called valance electron in an

atom? A Half the total No of electron B No: of electron in middle orbit C No: of electron in inner most orbit D No: of electron in the outer most orbit 4 How many electrons are in a copper atom? A 27 B 28 C 29 D 30 5 How many number of electrons in ‘k’ shell of

an atom? A 2 B 8 C 18 D 32

6 How many number of electrons will move in one second for one ampere current through the conductor?

A 6.24 X 10 15

B 6.24 X 10 16

C 6.24 X 10 17

D 6.24 X 10 18

7 Which colour band of resistor indicates the multiplier?

A First band B Third band C Fourth band D Second band 8 Which resistor is known as photo-

Conductors? A Light dependent resistor B Voltage dependent resistors C PTC resistors D NTC resistors


Questions: Level 2 1 Which type of tap joint is suitable for low

current circuit? A Plain tap joint B Aerial tap joint C Knotted tap joint D Duplex cross joint 2 Which type of joint is used in over head

lines for extending the length of wire? A Scared joint B Britannia ‘T’ joint C Western union joint D Married joint 3 Which metal is used to make soldering iron

bit? A Iron B Steel C Brass D Copper 4 Which solder is used for soldering

aluminium conductor? A Fine solder B Resin core solder C Alcap solder D Tinman solder 5 Which soldering method is used to solder

under ground cable joints? A Dip soldering B Soldering iron method C Pot and ladle method D Machine soldering method 6 Which effect of electric current is used for

the treatment of mental patient? A Shock effect B Chemical effect C Magnetic effect D Ionisation effect 7 Which effect is produced, if the current is

passed through a conductor? A Thermal effect B Magnetic effect C Chemical effect D Electrostatic effect

8 Which effect is produced, if the current in passed through a coil?

A Heating effect B Chemical effect C Magnetic effect D Ionisation effect 9 Which material of the atom contains 4

valance electrons? A Mica B Silicon C Copper D Aluminium 10 Which particles are inside nucleus of an

atom? A Electron and proton B Proton and neutron C Electron and neutron D Electron only 11 What is the property of direct current? A Magnitude and direction of current changes

with time B Magnitude and direction of current remains

constant C Direction of current changes with time D Magnitude of current changes with time 12 What is the direction of conventional

current? A Opposite direction of flow of electrons B Same direction of flow of electrons C Opposite direction of flow of holes D From higher potential to lower potential 13 Which resistor has negative temperature

co-efficient? A Sensistor B Thermistor C Varistor D LDR resistor 14 Which resistor is used for circuit protection

at over load condition? A Wire wound resistors B Fusible resistors C Metal film resistors D Carbon film resistors


15 Which material is used for making wire wound resistors?

A Manganin B Graphite C Tantalum D Carbon



Questions: Level 3 1 How to reduce minimum contact resistance

in joints? A Make tight joints B Maintain rust/dust free metal tight contact C Increase number of joint turns considerably D Cover the joints with insulation 2 What is the cause for cold solder defect in

soldering? A Excessive heating B Insufficient heating C High wattage soldering iron D Incorrect use of solder

Module: 2 - Wiring Joints and Soldering - Key paper


SL.No Key SL.No Key SL.No Key 1 C 1 B 1 B 2 B 2 C 2 B 3 D 3 D 4 C 4 C 5 A 5 C 6 D 6 A 7 B 7 A 8 A 8 C

9 B 10 B 11 B

12 A 13 B 14 B 15 A


Wireman - 1st Semester - Module 3 : Basic Electrical Practice Questions: Level 1 1 Which formula is used to calculate the total

resistance (RT) of a parallel circuit having 3 resistors (R1, R2 & R3)?

A RT = 321 RRR ++

B RT = 321 RRR

C RT = 323121

321RRRRRR

RRR++

D RT = 321

323121RRR

RRRRRR+

++

2 What is the total resistance (RT) if R1, R2, R3

are connected in series? A RT = R1 + R2 + R3

B 321

T R1

R1

R1R ++=

C RT = R1 R2 R3

D 321

T RRR1R++

=

3 What is the formula to calculate the total resistance ‘RT’ of the circuit?

A 3

21T R

RRR +=

B 32

321T RR

xRRRR+

+=

C 321T RRRR ++=

D 32

321T xRR

RRRR ++=

4 Which law states the relation between the voltage current and resistance in a closed circuit at constant temperature?

A Ohm’s law B Kirchoff’s current law C Kirchoff’s voltage law D Laws of resistance

5 Which law states that in each closed circuit the sum of all voltage drops are equal to zero?

A Krichoff’s current Law B Krichoff’s voltage Law C Law of Resistance D Ohms law 6 What is the S.I unit of specific resistance? A Ohm/cm B Ohm/metre2 C Ohm-metre D Micro ohm/cm2 7 Which defines that the changes in

resistance in ohm per 1°C rise in temperature?

A Thermal expansion B Thermal conductivity C Temperature coefficient D Thermo dynamics 8 Which resistor, the lowest current flows is

low of 50 Ω, 220 Ω, 450 Ω And 560 Ω resistors are connected in parallel?

A 50Ω B 220Ω C 450Ω D 560Ω 9 What is the value of resistivity of copper? A 0.000172 micro ohm - metre B 0.00172 micro ohm - metre C 0.0172 micro ohm - metre D 0.172 micro ohm - metre 10 What is the rating factor of close excess

current protection? A 0.81 B 1.00 C 1.11 D 1.23 11 What is the rating factor of coarse excess

current protection? A 1.23 B 1.11 C 1.00 D 0.81


12 What is formula to calculate electric power (P)?

A RP 2 ×Ι=

B 2VRP=

C P = RΙ

D P= VΙ

13 What is the formula to calculate the quantity of electricity?

A Current x time B Voltage x time C Current x resistance D Voltage x resistance


Questions: Level 2 1 What is the change in total resistance value,

if additional resistor is connected in a parallel circuit?

A Decrease B Remains same C Increase 2 times D Increase to 1.5 times 2 Which is the correct statement for the

reciprocal of combined resistors in parallel circuit?

A Sum of the reciprocals of each individual resistor

B Sum of each individual resistor C Lowest value of resistor in the circuit D Highest value of resistor in the circuit 3 Calculate the value of series resistor?

A 1380 Ω B 1390 Ω C 1400 Ω D 1492 Ω 4 Calculate the voltage drop between QRS?

A 40 V B 55 V C 65 V D 80 V

5 Which lamp will glow bright?

A 25 W B 100 W C Both lamp glow bright D Both lamp glow dim 6 Which electrical quantity remains same in all

part of series circuit? A Voltage B Current C Resistance D Power 7 Which method is used for measuring low

and medium value of resistance? A Series type ohm meter B Kelvin bridge method C Wheat stone bridge method D Shunt type ohm meter 8 Which electrical quantity is inversely

proportional to the current as per ohm’s law?

A Resistance B Voltage C Power D Energy 9 What is the condition, if zero current is

flowing through the galvanometer in Wheatstone bridge?

A Balanced B Unbalanced C Short-circuited D Open circuited 10 Calculates the value of unknown resistance

(R) is connected in a wheat stone bridge at balanced conditions, if P = 350 , S = 200

ΩΩ and Q = 420Ω ?

A 480Ω B 320Ω C 280Ω D 240Ω


11 What is the reading of galvanometer in wheastone bridge at balanced stage?

A High deflection B Low deflection C Null deflection D Vibrates 12 What is the effect in resistance of the

conductor, if its diameter is doubled? A Increase to two times B Increase to four times C Decrease to half the value D Decrease to ¼ th value 13 Which is inversely proportional to the

resistance of conductor? A Area of cross section B Length C Resistivity D Temperature 14 Which material have negative temperature

coefficient? A Carbon B Tungsten C Nichrome D Mangnin 15 What is the advantage of stranded

conductor compared to solid conductor? A More rigidity B Flexibility C High melting point D High mechanical strength 16 What is the main property of an insulator? A Low resistance B Low melting point C High temperature co-efficient D High dielectric strength 17 Which instrument is used to measure the

size of conductor? A Micrometer B Radius gauges C Vernier gauge D Vernier caliper 18 What is the property of good conductor? A Must have low specific resistance B Must have high dielectric strength C Must have low tensile strength D Must have low melting point

19 Which material is to be applied to the aluminium conductor end before crimping?

A Oxide inhibiting grease B Carbon tetra chloride C Sal ammonia resin D Hydrochloric acid 20 What will be the result of an improper

grimping? A Contact resistance decreased B Contact temperature increased C Contact resistance increased D Contact temperature decreased 21 What is the current capacity of the cable if

the normal current carrying capacity is 16 Amps while it is protected by coarse excess current protection?

A 11 A B 13 A C 15 A D 20 A



Questions: Level 3 1 Which type of fault is illustrated?

A Open circuit B Short circuit

C Ground fault D Leakage fault 2 How 3 numbers of 1000 Ω resistors can be

connected to get 1500 Ω total resistance?

A Three in parallel B Three in series

C Two in parallel one in series D Two in series and one in parallel

3 What is the power consumption of load, If

the supply voltage is reduced to half for the same load?

A 25 percent B 50 percent

C 100 percent D 200 percent

Module 3 : Basic Electrical Practice - Key paper


SL.No Key SL.No Key SL.No Key 1 C 1 A 1 B 2 A 2 A 2 C 3 B 3 D 3 A 4 A 4 D 5 B 5 A 6 C 6 B 7 C 7 D 8 D 8 A 9 C 9 A 10 D 10 D 11 D 11 C 12 A 12 B 13 A 13 A 14 A 15 B 16 D 17 A 18 A 19 A 20 C 21 B


Wireman - 1st Semester - Module 4: Wiring and Earthing Questions: Level 1 1 Which symbol represents conduit concealed

wiring?

2 What is the name of BIS symbol?

A Lamp B Two way switch C Intermediate switch D Multi - position switch 3 Which is the BIS symbol of exhaust fan?

4 Which switch is having four terminals? A Single pole one way switch B single pole two way switches C Intermediate switch D Pull switch

5 Which is the BIS symbol for socket outlet 16A?

6 What does the symbol marked as ‘Y’

indicates?

A Number of switches to be connected B Number of wires run on the limb C Number clamps (or) clips to be fixed D Number of the battern (or) pipe to be fixed 7 What is the breaking capacity of the MCB? A Upto 5 KA B Upto 8 KA C Upto 9 KA D Upto 10 KA 8 What is the voltage range of DC series

MCB? A 110 volt DC B 200 volt DC C 220 volt DC D 230 volt DC


9 What is the minimum length of the earth electrode pipe?

A 1.5 meter B 2 meter C 2.25 meter D 2.5 meter 10 What is the another name of RCCB? A MCB B OCB C ACB D ELCB


Questions: Level 2 1 What is the purpose of BIS symbols used

electrical layout? A To represent the parts in circuits B To simplify the structure of the layout C To improve the appearance of the wiring

installation D To identify the operation of electrical

accessories 2 What is the purpose of iron clad-fuse

cutouts providing at the incoming side of power connections to the consumers?

A Maintain the stabilised supply voltage B Protect the circuit from the leakage circuit

Fault C Protect the human beings from electric

shock D Ensure the line is not over loaded beyond

current capacity 3 Which switch is having a spring-loaded

button? A Intermediate switch B Push button switch C Pull switch D Double pole switch 4 Which type of holder is used between 200W

to 300W lamp? A Edison screw holder B Goliath screw holder C Bracket holder D Angle holder 5 Which type of holder is recommended for

earthing as per BIS? A Angle holder B Bracket holder C Battern lamp holder D Pendant lamp holder 6 Which type of accessories, the fuse comes

under? A Controlling accessories B Holding accessories C Safety accessories D Outlet accessories

7 Which classification of accessories, ceiling rose belongs?

A Outlet accessories B Safety accessories C Holding accessories D General accessories 8 What is the type of diagram?

A Wiring diagram B Circuit diagram C Installation plan D Layout diagram 9 What is the purpose of the part marked as

‘y’ in the switch of the circuit?

A It represents the spring action B It indicates the tumblering action C It denotes the position of the contact D It represents the earthing of the contact 10 What is the purpose of circuit diagram? A Explains the function of the various

accessories in the circuit B Indicates the physical position of

accessories C Informs the reader quickly what for the

circuit is designed D Represents the schematic connection of the

circuit for a specific task 11 Why the looping - back (loop in) method is

preferred in domestic wiring installation? A Easy to identify the faults B No separate joints are used C More sub - circuits can be made D More number of tappings can be taken


12 Which MCBs are designated to protect circuit with inductive loads?

A L series MCBs B G series MCBs C DC series MCBs D L series and DC series MCBs 13 What is the reason for supplying AC to the

electrodes for measuring earth resistance? A AC is easily available B Protect the coils in the meter C Reduce the value of current in the meter D Avoid the effect of electrolytic Emf

interference 14 What happens, if a person receives a shock

current of 20 mA? A Painful shock B No sensation C Become unconscious D Heart convulsions 15 How the DC is converted into AC in earth

tester? A Halfwave rectifier B Current reverser C Commutator D Fullwave rectifier

16 Which insulation is necessary for proper function and basic protection?

A Double insulation B Functional insulation C Reinforced insulation D Supplementary insulation 17 How many primary winding required in

ELCB? A One primary winding B Two primary windings C Three primary windings D Four primary windings 18 Why earth resistance value required to keep

very low? A For quick current flow B For easy measurement C For low power consumption D For low voltage drop 19 Which instrument is used to measure earth

resistance? A Megger B Ohm meter C Wheatstone bridge D Earth tester



Questions: Level 3 1 What will happen to the value of earth

resistance, if length of the earth pipe is increased?

A Remain same B Increases C Decreases D Infinity

Module 4 : Wiring and Earthing - Key paper


SL.No Key SL.No Key SL.No Key 1 D 1 A 1 C 2 C 2 D 3 D 3 B 4 C 4 A 5 B 5 B 6 B 6 C 7 C 7 D 8 C 8 A 9 D 9 B 10 D 10 D

11 B 12 B 13 D 14 A 15 B 16 B 17 B 18 A 19 D


Wireman - 1st Semester - Module 5 : Cells and Batteries

Questions: Level 1 1 Which is the negative (cathode) electrode in

silver oxide cells? A zinc B copper C carbon D Silver oxide 2 What is the electro chemical equivalent of

silver? A 0.001182 mg/coulomb B 0.01182 mg/coulomb C 0.1182 mg/coulomb D 1.1182 mg/coulomb 3 Which is the formula to express Faraday’s

law of electrolysis?

A ItZM =

B ZitM =

C ZitM =

D i

ZtM =

4 Which electrolyte is used in lead acid battery?

A Diluted hydrochloric acid B Concentrated ammonium chloride C Concentrated potassium hydroxide D Diluted sulphuric acid 5 Which is rechargeable cell? A Voltaic cell B Carbon zinc cell C Lead acid cell D Mercury cell 6 Which electrodes are used in voltaic cell? A Carbon and zinc B Copper and zinc C Lithium and carbon D Lithium and zinc 7 What is the normal voltage range of a dry

cell? A 2.5 V B 2 V C 1.5 V D 1V

8 Which formula is used to calculate internal resistance (Ri) of a cell?

A Ri = VE

IL−

B Ri= EV

IL−

C Ri= LI

EV −

D Ri= LI

VE −

9 What is the part marked as ‘x’?

A Container B Plates C Separators D Terminals


Questions: Level 2 1 What is the purpose of providing separator

in lead acid battery? A To make a path for easy flow of electrolyte B To keep positive and negative plates

separately C To protect from short circuit in between the

positive and negative plates D To hold the positive and negative plate

firmly 2 Which instrument is used to measure

electrolyte specific gravity? A Barometer B Hydrometer C Lactometer D Thermometer 3 What is the reading of voltmeter of the

circuit?

A 0 V B 1.5 V C 3.0 V D 4.5. V 4 What is the total voltage, if 6 cells of 1.5V

and 12AH each connected in parallel? A 1.5 volt B 6.0 volt C 7.5 volt D 9.0 volt 5 Why the vent plugs are kept open during

charging of lead acid battery? A Check the level of electrolyte B Release the gas produced C Enter the oxygen from atmospheric air D Check the condition of plates 6 Which method is used to charge the battery

at very low rate and long period? A Rectifier method B Trickle charging method C Constant current method D Constant potential method

7 Which is the positive electrode in voltaic cell?

A Carbon B Zinc C Copper D Lithium 8 Which is the negative electrode in voltaic

cell? A Carbon B Copper C Zinc D Lithium 9 Which is used as depolariser in leclanche

cell? A Manganese dioxide B Hydrogen chloride C Zinc sulphate D Sodium chloride 10 Which electrolyte used in leclanche cell? A Zinc sulphate B Ammonium chloride C Hydrogen chloride D Zinc chloride 11 Which material is used as positive electrode

in a dry cell? A Zinc B Carbon C Copper D Lithium 12 Which metal is used in dry cell as negative

electrode? A Copper B Zinc C Carbon D Lithium 13 Which cell has high shelf life? A Dry cell B Leclanche cell C Lithium cell D Alkaline cell 14 What happens to the terminal voltage of a

cell if load is increased? A Decreases B Increases C Remain same D Falls to zero


15 Which factor the terminal voltage of a cell depends?

A Internal resistance of the cell B Load current of the circuit C Internal resistance and load current D Internal current and terminal voltage 16 Why cells are connected in series? A To reduce total voltage B To obtain higher current C To obtain higher voltage D To reduce current 17 Which part is losing electrons during

electrolysis? A Cathode B Anode C Electrolyte D Separator 18 Which term refers that, if the mass of a

substance liberated from an electrolyte by one coulomb of electricity?

A Electroplating B Electrolysis C Electro chemical equivalent D Electron emission 19 What is the process of chemical

decomposition produced by current passed through electrolyte?

A Electromagnetism B Electrolysis C Electron theory D Electro statics



Questions: Level 3 1 What is the effect on positive plate of lead

acid battery during discharging? A Become sponge lead B Change to lead peroxide C Change to lead sulphate D Become lead sulphate and water 2 What is the cause for the buckling defect in

lead acid battery? A Bending of the electrodes B Wrong concentrations of electrolyte C Short circuit in terminals D Sulphating in negative plate 3 How to remove hard sulphation defect lead

in acid battery? A Change with new electrolyte B Replace with the new electrodes C Recharge the battery for a longer period at

low rate D Recharge the battery for short period at high

rate 4 How local action can be prevented in a cell? A By amalgamating the zinc plate B By using a depolarising agent C By connecting cells in parallel D By connecting cell in series 5 What is the effect, if one cell connection is

reversed in a series grouping of two cells? A Output voltage will be lower B Output voltage will be higher C Output voltage will remains same D no output 6 What is the output voltage if a cell

connection is reversed in a parallel grouping of two cells?

A Output voltage will reduce B The output voltage will be as expected value C The output voltage will increase D No output voltage

Module: 5 - Cells and Batteries - Key paper


SL.No Key SL.No Key SL.No Key 1 A 1 B 1 D 2 D 2 B 2 A 3 B 3 A 3 C 4 D 4 A 4 A 5 C 5 B 5 D 6 B 6 B 6 D 7 C 7 C 8 D 8 C 9 B 9 A

10 B 11 B

12 B 13 C 14 A 15 C 16 C 17 B 18 C 19 B


Wireman - 1st Semester - Module 6 : Basic Workshop Practice Questions: Level 1 1 What is the name of the hammer?

A Claw hammer B Straight pein hammer C Ball pein hammer D Cross pein hammer 2 What is the name of the part marked as ‘X’

in universal surface gauge?

A Snug B Scriber C Spindle D Clamping Nut 3 Which material is used to make radius

gauges? A High carbon steel B GI Sheets C B.P. Sheets D High quality steel sheets 4 What is the name of the gauge?

A Limit gauge B Radius gauge C Thread ring gauge D Standard wire gauge

5 What is the name of the gauge?

A Thread ring gauge B Thread plug gauge C Internal “GO and “NO GO” gauge D External “GO” and “NO GO” gauge 6 What is the size of firmer chisel? A 1 mm to 30 mm B 2 mm to 40 mm C 3 mm to 50 mm D 4 mm to 60 mm 7 What is the name of the tool?

A ‘G’ clamp B Vice clamp C Bench hook D Carpenter’s vice 8 What is the name of the stake?

A Square stake B Hatchet stake C Blow-horn stake D Bevel-edge square stake


9 What is the name of the tool?

A Stakes B “C” clamps C Folding bar D Angle steel 1 0 How the size of rivets are specified? A Radius and length of the shank B Diameter and radius of the shank C Diameter and length of the shank D Radius and circumference of the shank 11 What is the indication of the letter ‘M’ in

thread formation M12? A BSF thread B BSW thread C ISO inch thread D ISO metric thread 12 What is the name of the drilling machine?

A Pillar drilling machine B Radial drilling machine C Electric hand drilling machine D Sensitive bench drilling machine 13 Which formula is used to calculate cutting

speed (CS) of a drill bit of d = dia of drill, N = spindle speed in RPM?

A CS = 100

dNπ m/min

B CS = 1000

dNπ m/min

C CS = 1000

rNπ m/min

D CS = 2x1000

dNπ m/min

14 How files are specified? A By length B By thickness C By width D By total length with handle 15 What is the point angle of centre punch? A 90° B 60° C 45° D 30° 16 What is the accuracy of measurement of the

try square? A 0.2 mm per 10 mm length B 0.02 mm per 10 mm length C 0.002 mm per 10 mm length D 0.0002 mm per 10 mm length 17 What is the accuracy of the wooden folding

rule? A 0.5 mm B 0.25 mm C 0.5 mm D 1 mm 18 How nails are specified? A By length only B By type only C By length and type only D By length type and gauge number


Questions: Level 2 1 What is the use of cross cut chisels? A Cutting keyways B Cutting curved grooves C Squaring materials at corners D Removing metal after chain drilling 2 How to check the radius of the parts by

using radius gauge? A Comparing with radius of the radius gauge B Actual measuring with the help of radius

gauge C Calculated with the help of the radius gauge D Visually displayed in radius gauge 3 What is the use of the carpenter tool?

A Marking lines parallel to face B Marking holes on wood C Check the thickness of wood D Check the squareness of wood 4 What is the use of fret saw?

A Larger curve cutting B Cutting sharp curves C Internal cutting D Cutting sharp and fine curves 5 What is the name of operation that

performed in the direction of grain in wood? A Along the grain B Across the grain C Vertical to the grain D Inclined to the grain

6 Which type of wooden joint is illustrated?

A End lap joint B Middle lap joint C Cross lap joint D Corner joint 7 What is the use of bent snips? A To cut straight slot B To cut internal holes C To cut external curves D To cut internal curves 8 Which notch is used, if a single hem meets

at right angles? A ‘V’ notch B Slant notch C Square notch D Straight notch 9 What is the cutting angle of “V” notch

marked as ‘X’?

A 30° angle to the edge of the sheet B 40°angle to the edge of the sheet C 45° angle to the edge of the sheet D 50° angle to the edge of the sheet 10 Which type of notch is used for forming

rectangular box? A ‘V’ notch B Slant notch C Square notch D Straight notch


11 Which type of stakes are used for riveting cone shape articles?

A Square stake B Hatchet stake C Bevel edge square stake D Blow horn stake 12 How much clearance is to be given from the

edge of the metal sheet to the centre of any rivet to avoid tearing?

A One time of dia of rivet B 2 times of dia of rivet C 3 times of dia of rivet D 4 times of dia of rivet 13 Which speed can be achieved by the belt

arrangement in bench drilling machine?

A 2 times below than rated speed B 3 times below than rated speed C Rated speed D Above rated speed 14 What is the name of the operation needed

to enable the head of the screw to fit flush with the surface of a component?

A Drilling B Tapping C Reaming D Counter sinking 15 What is the use of slot in the ‘V’ block

marked as ‘X’?

A For holding square jobs B For clamp small work pieces C For clamping the ‘V’ block in machine D For the marking of rectangular jobs 16 What is the use of stock and die sets? A To make internal threads in cylindrical jobs B To make external threads in cylindrical jobs C To make internal threads in square jobs D To make external threads in square jobs

17 Which type of pipe vice is illustrated?

A Open pipe vice B Chain pipe vice C Self-locking hinged pipe vice D Pipe vice with the tripod stand 18 Which type of wrench is illustrated?

A T-handle tap wrench B Double-ended non-adjustable tap wrench C Solid tap wrench D Double ended adjustable tap wrench



Questions: Level 3 1 What happens on marking instrument if

marking media copper sulphate applied on the job is in wet condition?

A Graduation on the scale disappear B It will make hatches at line fixed surfaces C It will stick on the instrument D Measurement may NOT be accurate 2 Which defect in timber is caused by the

growth of branches? A Twisting B Cracking C Cupping D Knot 3 Which defect will occur, if the distance

between rivets will exceed more than 24 times of the thickness of the sheet?

A Tearing B Overlapping C Buckling D Gapping 4 What is the effect if the dies cut too much

depth in the pipes while forming threads? A No effect threads form normally B Threads forms unevenly C Both die and threads damaged D Pipe broken into pieces

Module 6 : Basic Workshop Practice - Key paper


SL.No Key SL.No Key SL.No Key 1 C 1 A 1 C 2 A 2 A 2 D 3 D 3 A 3 C 4 B 4 D 4 C 5 C 5 A 6 C 6 C 7 D 7 D 8 C 8 B 9 C 9 C 10 C 10 C 11 D 11 D 12 D 12 B 13 B 13 D 14 A 14 D 15 A 15 B 16 C 16 B 17 D 17 B 18 D 18 C


Wireman - 1st Semester - Module 7: Magnetism and Capacitor Questions: Level 1 1 What is the unit of permeability? A Weber/metre B No unit (mere number) C Ampere turns/web D Ampere turns/metre 2

2 Which rule is used to find the direction of the self induced emf in a coil?

A Clock rule B Len’z law C Ampere rule D Corkscrew rule 3 What is the name of the part marked as ‘X’?

A Magnetic saturation B Coercive force C Residual magnetism D Origin point 4 Which material has high dielectric constant? A Air B Paper C Ceramic D Polyester 5 What is the formula to calculate the total

capacitance (C) if three capacitors (C1, C2, C3) connected in series?

A C = C1+C2+C3

B C = 321 CCC

1++

C C = 133221

321

CCCCCCCCC++

D C = 321

321

CCCCCC++

6 Which formula is used to find capacitance? A C = QV B C = Q+V

C C = QV

D C = VQ

7 What is the name of the keeper material marked as ‘X’?

A Iron B Wood C Copper D Aluminium


Questions: Level 2 1 Which is dertermined by BH curve? A The retentiveness of the material B The field intensity of the substance C The magnetic properties of the material D The pulling power of the magnetic material 2 Which factor depends on the permeability of

the material? A Length B Flux density C Field intensity D Magneto motive force 3 Which method of magnetization is

illustrated?

A Single touch method B Double touch method C Induction method D Divided touch method 4 Which method of magnetization is used to

make commercial purpose permanent magnets?

A Induction method B Electric current C Double touch method D Divided touch method 5 Which rule is used to find the magnetic

polarity of solenoid? A Len’z law B Right hand palm rule C Fleming’s left hand rule D Fleming’s right hand rule 6 Which rule is used for determine the

direction of magnetic lines in a current carrying conductor?

A Len’z law B Right hand palm rule C Fleming left hand rule D Fleming right hand rule

7 What is the metal composition of Permalloy?

A Iron and nickel B Iron and copper C Iron and aluminium D Iron and chromium 8 Where Mumetal is used? A Alternator B Electric heater C Electric motor D Instrument transformer 9 Which force is required to demagnetise the

residual magnetism in the hysterisis loop? A Electromotive force B Magneto motive force C Counter induced emf D Coercive force 10 What is the name of property that the flux

density always lagging behind the magnetising force?

A Hysterisis B Magnetic intensity C Magnetic induction D Residual magnetism 11 Which factor is inversely proportional to the

value of capacitance? A Dielectric strength B Thickness of the plate C Area of the plate D Distance between the plates 12 Which type of capacitor is known as

polarised capacitor? A Mica capacitor B Paper capacitor C Ceramic capacitor D Electrolytic capacitor 13 Which type of capacitors are used in RF

coupling circuit? A Monolithic B Tantulum C Metallized polypropylene D Electrolytic interference 14 Where the variable air capacitors are used? A Radio receivers B Oscillators C Amplifiers D RF filters


15 Which type of capacitor is used for space requirements?

A Plastic film type B Ceramic disc type C Electrolytic - Aluminium D Electrolytic - Tantalum type 16 What is the value of capacitance, if it stores

1 coulomb of charge at 1 volt? A 1 watts B 1 ohm C 1 farad D 1 henry 17 Which dielectric material is used in

capacitor? A Empire cloth B Milinex paper C Ceramic D Insulating varnish 18 Which property of a magnet is illustrated?

A Induction property B Saturation property C Directive property D Poles-existing property



Questions: Level 3 1 What is the effect of eddy current in a

material? A Reduces temperature B Increases material resistance C Increases temperature D Decreases material resistance 2 What is the effect of inductance if the

distance between the turns increases? A Decreases B Increases C Remains same D Becomes zero 3 What is the effect of capacitance of a

capacitor if the plate area is doubled? A Doubled B Halved C One fourth D Remain same 4 What is the effect of capacitance of a leaky

capacitor? A Increases B Decreases C Remain same D Become zero

5 What is the ohmmeter reading, if a polarised leaky capacitor is connected across ohmmeter?

A Stay on zero B Halved Stay on infinity C Move from zero to infinity D Move from infinity to some position 6 What is the effect on a polarised capacitor if

its polarity reversed? A It reduce the current in the circuit B It increase the value of capacitance C No effect on the capacitors function D The capacitor, heat up and explode finally

Module 7 : Magnetism and Capacitor- Key paper


SL.No Key SL.No Key SL.No Key 1 B 1 C 1 C 2 B 2 B 2 A 3 A 3 D 3 A 4 C 4 A 4 B 5 C 5 B 5 D 6 D 6 B 6 D 7 B 7 A

8 D 9 D 10 A 11 D

12 D 13 A 14 A 15 D 16 C 17 C 18 C


Wireman - 1st Semester - Module 8 : AC Circuits and Electronics

Questions: Level 1 1 What is the name of AC value is illustrated

in dotted lines?

A Effective value B Peak value C Average value D Instantaneous value 2 Which formula is used to calculate the form

factor (Kf) in AC circuit?

A valueRMS

valueAverageKf =

B valueAverage

valueRMSKf =

C valueAveragecalueMaxiumumKf =

D valueMaximum

valueRMSKf =

3 What is the RMS value of alternating voltage?

A 0.637 X V av

B 0.707 X V av

C 0.637 X V max

D 0.707 X V max

4 What is the value of form factor? A 1.23 B 1.11 C 0.81 D 0.707

5 What is the formula to calculate the resonant frequency (Fr)?

A Fr = LC

1

B Fr = LC2

1π

C Fr = LC

R

D Fr = LCR2

6 Which formula is used to find impedance of a RLC series circuit?

A 22 )CL(RZ ++=

B 22 )CL(XZ −+=

C 2CL

2 )XX(RZ ±+=

D )LR(XZ 222C ++=

7 What is the formula for calculating admittances (Y) of a AC parallel circuit?

A Y = G2 + BC2

B Y = 2C

2 BG +

C Y2 = CBG +

D Y2 = 2CBG +

8 Which formula is used for calculating the admittance (y) in AC parallel circuit?

A y = Z 1 + Z + Z 2 3

B y = Z 1 x Z x Z 2 3

C 321 Z

1Z1

Z1y ++=

D

321 Z1

Z1

Z1

1y++

=

9 What is the reciprocal of resistance in AC parallel circuit?

A Reactance B Admittance C Conductance D Susceptance


10 What is the most convenient distribution supply voltage in a 3 phase 4 wire unbalanced AC system?

A 415 / 240V B 415 / 253V C 400 / 230V D 400 / 210V 11 What is the name of the instrument marked

as ‘X’?

A KWH meter B Wattmeter C Phase sequence meter D Power factor meter 12 Which formula is used to calculate power

factor (Cosθ) of an AC circuit?

A Cosθ = ZR

B Cosθ = ZV

C Cosθ = LX

V

D Cosθ = CX

V

13 Which formula is used to calculate reactive power (Pr)?

A Pr = VA cosθ B Pr = VA sinθ C Pr = W cosθ D Pr = VA tanθ 14 Which is active component? A Resistor B Inductor C Capacitor D Zener diode

15 What is the expansion of PIV? A Peak Input Voltage B Positive Inverse Voltage C Peak Inverse Voltage D Phase Inverse Voltage 16 Which formula is used to find ripple voltage?

(If Vr = ripple voltage in volts L = DC load current in Amps Fr = Ripple frequency in Hz C = Capacitance in Farads

A Vr = L

rCFΙ

Volts

B Vr = r

LFxCΙ Volts

C Vr = CxFrLΙ Volts

D Vr = CFr

LΙ Volts

17 What is the relation between input AC voltage (VAC) and output DC voltage (VDC) in full wave rectifier?

A Vdc = 0.45 Vac B Vdc = 0.637 Vac C Vdc = 0.707 Vac D Vdc = 0.9 Vac 18 What is the relation between input AC

voltage (VAC) and output DC voltage (VDC) in half wave rectifier?

A Vdc = 0.45 Vac B Vdc = 0.637 Vac C Vdc = 0.707 Vac D Vdc = 0.9 Vac

19 What is the relationship between line and phase current in delta connection?

A PL II = B

PI3LI =

C 3

II PL =

D pL I3I =


20 Which formula to find phase voltage in 3 phase star connection?

A LP VV =

B LP V3V =

C L

P V31V =

D 3

VV LP=


Questions: Level 2 1 What is the meaning of form factor? A It is the ratio of effective value to average

value B It is the ratio of effective value to peak value C It is the ratio of instantaneous value to

effective value D It is the ratio of peak value to average value 2 Which quantity is rotating at a constant

angular velocity? A Scalar quantity B Vector quantity C Phasor quantity D Algebraic quantity 3 Which AC circuit wave form is illustrated?

A Pure resistive circuit B Pure inductive circuit C Resistive and inductive circuit D Inductance and capacitance circuit 4 What is the inductive reactance of a coil

having 20H inductance operating at 50 Hz supply frequency?

A 6252 ΩB 6273 ΩC 6284 ΩD 6382 Ω5 What is the resonance frequency of RLC

series circuit, if the value of the capacitor is increased?

A Increase B Decrease C Become zero D Remains same 6 Which condition resonance will occur in AC

parallel circuit? A XL < XC B XL = XC

C XL = cX

D XL > XC

7 Where the artificial neutral is required for measuring phase voltage in 3 phase circuit?

A 3 wire star connected system B 4 wire star connected system C 3 wire delta connected system D 4 wire delta connected system 8 How many times the cross section area of

neutral conductor varies compared with live conductor in AC 3 phase 4 wire supply system?

A ½ times smaller B ½ times bigger C 2 timer bigger D ¼ timer smaller 9 What is the total power in two wattmeter

method of 3 phase power measurement, if one wattmeter reading is taken after reversing its connection?

A W1 x 2

B W1 only

C W1 - W

2

D W1 + W

2

10 What is the reactive power, if the active power is 4 Kw, and the apparent power is 5 Kw in a 3 phase circuit?

A 1 Kw B 2 Kw C 3 Kw D 4 Kw 11 How to get positve reading, if one wattmeter

reading is negative in a two wattmeter method of 3 phase power measurment?

A By interchanging the connections of input terminals

B By disconnecting the connection of current coil in that meter

C By reversing the connection of pressure coil connection of that meter

D By reversing the pressure coil and current coil connection of that meter


12 What is the power factor, if one wattmeter reads zero and other reads some positive reading in two wattmeter method of 3 phase power measurement?

A Unity B Above 0.5 C 0.5 D Bellow 0.5 13 What is the ratio between Watt and Volt

Ampere in power triangle?

A True power B Apparent power C Reactive power D Power factor 14 Why power factor is low in industries? A Pure inductive load B Pure resistive load C Pure capacitive load D Resistive and inductive load 15 Which method is used to improve the low

power factor? A By reducing resistive loads B By connecting more gas filled lamps C By connecting capacitors banks in parallel D By connection capacitors in series 16 What is the function of forward biased PN

junction diode? A Act as uni directional switch B Act as bi directional switch C Act as control switch D Act as limit switch 17 How the N type semi conductor is formed? A Germanium with arsenic B Silicon with antimony C Silicon with iridium D Silicon with arsenic 18 What does the depletion region behave? A Conductor B Insulator C Semi conductor D Resistor

19 What does letter ‘2N’ indicate in the semiconductor device?

A The diode PN junctions B The number of terminals C The device power D Two junction device 20 Which filter iron core inductors are used? A R C filter B Series inductor filter C LC filter D DI filter 21 Which is the formula for calculating power

factor from two wattmeter reading of 3 ph power measurements?

A 21

21WW

WW3Cos+−

=θ

B 21

21

WWWW

3Cos−+

=θ

C 21

211

WWWW3tanCos

+−

=θ −

D 2

21W1WWW3Cos

−+

=θ

22 How Q - factor is increased? A Decreasing bandwidth B Increasing bandwidth C Increasing frequency D Decreasing frequency 23 Which connection is used for secondary

side of distribution transformer? A Star connection B Delta connection C Delta-Delta connection D Star-Star connection 24 Which type of filter is illustrated?

A π filter B Series Inductor filter C RC filter D Choke input LC filter



Questions: Level 3 1 What happens to the radio, if the rectifier

ouput having ripples? A Gives no response B Gives buzzing sound C Works intermittently D Works with low volume 2 What is the effect in depletion region if the

reverse biased voltage is increased to two times?

A Increased to two times B Decreased to half time C Remains same D Decreased to two times

Module: 8 - AC Circuits and Electronics - Key paper


SL.No Key SL.No Key SL.No Key 1 D 1 A 1 B 2 B 2 C 2 A 3 D 3 B 4 B 4 C 5 B 5 B 6 C 6 B 7 B 7 C 8 C 8 A 9 C 9 C 10 A 10 C 11 C 11 C 12 A 12 C 13 B 13 D 14 D 14 D 15 C 15 C 16 D 16 A 17 D 17 A 18 A 18 B 19 D 19 D 20 D 20 C 21 C 22 A 23 A 24 B


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