I

IV. Energy Recovery1. What is Magnetite

a. Rust

b. Synthetic chemical coating

c. Corrosion inhibiting film

d. Refractory2. The function of the boiler water wall circuits is to _________________.

a. Superheat Steam

b. Convert water to steam

c. Remove impurities from the water

d. All the above3. pH refers to the _____________________.

a. Dissolved solids in water

b. Amount of oxygen in water

c. Conductivity of water

d. Acidity or alkalinity of water4. A modern system controls drum level based on ____________________.

a. Drum level only

b. Drum level and steam flow

c. Drum level and feedwater flow

d. Drum level, feedwater flow, and steam flow5. The ASME Boiler and Pressure Vessel Code requires that the boiler safety valve _______________________.

a. Be set and tested at least once a year.

b. Have the capacity to relieve the full capacity of the boiler.

c. Be manually opened as a test annually.

d. Be set to open on the drum before the superheater outlet.6. How many safety valves does the ASME Boiler and Pressure Vessel Code specify for a boiler of over 500 sq. ft of metal heating surface?

a. One, with the capacity to relieve all the pressure.

b. Two or more

c. A minimum of three

d. Four operating in sequence7. The rate at which a boiler produces steam is controlled by the _____________________.

a. Drum Level

b. Boiler Circulation

c. Firing Rate

d. Ash Removal Rate8. A device that uses two dissimilar metals fused at one end is used to measure __________________.

a. Temperature

b. Pressure

c. Flow

d. Voltage 9. In a steam table, find the boiler temperature of water at 270 psia.10. In a steam table, identify the difference in enthalpy between the water in the deaerator at 20 psia and 2270F, and Main Steam at 950 psia and 8500F.11. _____________________ is (are) used to prevent corrosion of the feedwater system.

a. Hydrazine

b. High Pressure

c. High Oxygen Concentrations

d. Ammonia12. The three types of heat transfer are _______________________________.

a. Vaporization, Fusion, Specific

b. Convection, Conduction, Radiation

c. Convection, Conduction, Translation

d. Conservation, Relative, Convection13. What type of heat transfer takes place through the tube wall from the furnace to the water?

a. Convection

b. Radiation

c. Translation

d. Conduction14. Excessive silica concentrations is the output of the demineralizer indicates__________________.

a. Ammonia Contamination

b. The Anion is exhausted

c. Cation breakthrough

d. the cation is exhausted15. Conductivity is a measurement of __________________________.

a. Oxygen content of treated water.

b. pH level

c. Current carrying ability of treated water.

d. Silica content16. The temperature of the water and steam in a vented vessel is being maintained at 2120F. If more heat is Applied to the vessel, _________________ will increase.

a. Water and Steam Temperature

b. Steam Generation

c. Water Density

d. Steam Pressure17. Demineralizers do not remove __________________________.

a. Chlorine ions and sodium

b. Calcium and Magnesium

c. Silica and Sodium

d. Oxygen and Nitrogen18. How are suspended solids removed from the boiler?

a. Vaporization

b. Chemical Cleaning

c. Continuous Blowdown

d. Chemical Injection19. The function of a condensate pump is to __________________.

a. Remove condensate from the hotwell

b. Pump condensate directly into the boiler

c. Add makeup water to the boiler water cycle

d. None of the Above20. The part of the condenser where condensate is collected is called the ______________.

a. Water box

b. Hotwell

c. Deaerator

d. Ash Tank

21. When shutting down a boiler, the drum vent is normally opened at __________________.

a. 0 psi

b. 15 psi

c. 50 psi

d. 75 psi

22. The boiler feed pump __________________________.

a. Takes suction from the hotwell.

b. Discharges into the deaerator.

c. Takes suction from the dearator.

d. Discharges into the hotwell.23. In preparing for a boiler startup, the drum is filled to its normally operating level. Once a fire is started in the Furnace, a high drum level alarm is annunciated. The proper response is to _________________.

a. Add more water

b. Shut off the burners and stop feedwater flow

c. Use the blowdown valve

d. Add additional fuel24. Water to a closed loop boiler system is called__________________________.

a. Makeup

b. Raw Water

c. Blowdown

d. Injection25. The temperature of the steam leaving the boiler drum is_____________________.

a. Superheated at 1000F

b. Normally withing 500F of the water in the drum

c. Of little importance to the operator

d. Normally superheated at least 2000F26. A BTU is the amount of energy required to raise the temperature of one ____________________________.

a. Gallon of water one degree F.

b. Pound of water one degree F.

c. Gallon of water one degree C.

d. Pound of water one degree C.27. The parameter that steam tables list to describe the total amount of energy in steam is ________________.

a. Entropy

b. Enthalpy

c. Saturation

d. Superheat

28. A pressure of 3 psig is equal to _________ psia.

29. The steam table list pressures in ______________.

a. PSIA

b. PSIG

c. In. H2O

d. Lbs.

30. A pressure measuring device consisting of a rounded hollow tube with linkage to a needle is a

________________________.

a. Diaphragm pressure gauge

b. Bellows type pressure gauge

c. Bourdon tube pressure gauge

d. Manometer31. Devices used to convert measurements monitored by system sensors, to signals for use by the control system are _____________________________.

a. Thermo probes

b. Controllers

c. Transmitters

d. Accordions