Magnetic particle inspection can be performed on parts made from which materials? 1 Iron, nickel, copperIron, nickel, cobaltNickel, cobalt, copperIron only 2 A longitudinal magnetic field has magnetic lines of force that run: Parallel to the long axis of the part90 degrees to the long axis of the partTransverse to the long axis of the partOpposite the wavefor of the agnetic particle achine !sed 3 Multidirectional inspection equipment: Provides a ore sensitive inspectionProvices a less sensitive inspection"an be !sed witho!t the need for ##Is$ed!ces inspection tie 4 A location where a magnetic field can be detected exiting or entering a material is called: % agnetic pole% agnetic field% fl!x fieldPolarity An object that has a magnetic pole on one end and a second equal but opposite magnetic pole on the other is called a: 5 &ipoleInd!ctor"apacitor% ferroagnetic aterial 6 Which type of current flows continuously in one direction at a constant voltage? &irect c!rrent%lternating c!rrent$ectified alternating c!rrent'alf wave rectified alternating c!rrent 7 Materials can be demagnetized by: 'eating above thier c!rie teperat!re (!b)ecting the coponent to a reversing and decreasing agnetic field*oth % and *None of the above 8 Which of the following has a very wea and negative susceptibility to magnetic field? +erroagnetic aterials&iaagnetic aterialsParaagnetic aterialsNone of the above 9 Magnetic particle inspection has several advantages over liquid penetrant inspection which include: "oponents with thin coatings can be inspected witho!t reoving the coating"oponents can be inspected ore rapidly The techni,!e is ore portable*oth % and * 10 Which of the following has a large susceptibility to magnetic field? +erroagnetic aterials&iaagnetic aterialsParaagnetic aterialsNone of the above 11 When a ferromagnetic material is in a unmagnetized state! the domains are: %ligned in a north and so!th direction%ligned in a east and west direction$andoly organi-ed*alanced to prod!ce a ga!ss rating of . 12 "ince all matter is composed of atoms: %ll parts can be tested with /PI if they are heated to their c!rie teperat!re%ll aterials can be tested with a /PI regardless of teperat!re%ll aterials are affected in soe way by a agnetic fieldNone of the above 13 A material with a wider hysteresis loop has: 0ower rel!ctance0ower resid!al agnetis'igher resid!al agnetis'igher preeability 14 Magnetic lines of force: %lost never cross each other"oonly cross each other1ill shift 90 degrees when a direct c!rrent is appliedNever cross each other 15 Magnetic lines of force: 'ave the sae strength(eek the path of least resistance&ecrease in density with increasing distance fro the poles%ll of the above 16 #he magnetic field circling each loop of wire in a coil combineswith the fields from the other loops to produce a concentrated field: 1hich is axii-ed aro!nd the o!tside of the coil%ro!nd each loop of the coil&own the center of the coil%ll of the above 17 When performing a magnetic particle test with a coil! the part should be placed: %long the o!tside edge the coil%long the inside edge of the coil"entered in the coilNone of the above 18 #he number of magnetic lines of force cutting thorugh a plane of a given area at a right angle is nown as the: /agnetic fl!x leakage/agnetic fl!x density/agnetic apereNone of the above 19 Magnetic lines of force: +or closed loops fro pole to pole1ill shift 120 degrees when a direct c!rrent is applied1ere discovered by 1ilhel '!rstNone of the above 20 A hysteresis loop shows the relationship between the: Ind!ced agnetic fl!x density and the agneti-ing forceInd!ced agnetic fl!x density and the electron force3lectron flow and agnetic field strength+l!x density and n!ber of coil t!rns