Power Engineering 3B1 Chapter 5 Questions
and Answers| Latest Update
1. A slow opening blow-off valve:
1. Creates less water hammer than a quick-opening blow-off valve
2. Creates more water hammer than a quick-opening blow-off valve
3. Creates the same amount of water hammer as a quick-opening type
4. Is opened after the quick-opening valve
a. 1,4
b. 2,4
c. 3,4
d. 4
e. 3 Correct Ans-a 1,4
2. The purpose of the blow-off tank:.
3. Is to measure the amount of water being blown down from the boiler
4. Is to prevent steam and hot water from going directly to the sewer
5. Is to reduce the pressure and the temperature of the water entering the sewer
6. Is to prevent damage to the sewer system
a. 1,2,3,4
b. 1,2,3
c. 2,3,4
d. 1,3,4
e. 1,2,4 Correct Ans-c 2,3,4
7. What are drum internals?
a. The riser tubes
b. The downcomer
c. The fittings located within the boiler drum
d. The internal shell
e. the fittings attached to the boiler drum or shell Correct Ans-c. The fittings
located within the boiler drum
, 8. The removal of impurities from the steam is extremely important because:
9. The boiler uses too much fuel
10. They will form deposits in the superheater tubes
11. The over heating of the tubes will result
12. Deposits will be formed on the turbine blades
a. 1,2,3,4
b. 1,2,3
c. 1,2,4
d. 1,3,4
e. 2,3,4 Correct Ans-e 2,3,4
13. The purpose of removing moisture from steam:
14. Is to lower the solids concentration of the steam
15. Is to lower the erosion effect on turbines
16. Is to save water make up to the boiler
17. Is to save money on the operation of the boiler system
a. 1,2,3,4
b. 1,2,3
c. 1,2,4
d. 1,3,4
e. 2,3,4 Correct Ans-c 1,2,4
18. The purpose of the steam washer is:
19. To scrub the incoming water
20. To absorb any gaseous impurities in the steam
21. To prevent excessive water make up to the boiler
22. To prevent silica build up in the superheater tubes
and Answers| Latest Update
1. A slow opening blow-off valve:
1. Creates less water hammer than a quick-opening blow-off valve
2. Creates more water hammer than a quick-opening blow-off valve
3. Creates the same amount of water hammer as a quick-opening type
4. Is opened after the quick-opening valve
a. 1,4
b. 2,4
c. 3,4
d. 4
e. 3 Correct Ans-a 1,4
2. The purpose of the blow-off tank:.
3. Is to measure the amount of water being blown down from the boiler
4. Is to prevent steam and hot water from going directly to the sewer
5. Is to reduce the pressure and the temperature of the water entering the sewer
6. Is to prevent damage to the sewer system
a. 1,2,3,4
b. 1,2,3
c. 2,3,4
d. 1,3,4
e. 1,2,4 Correct Ans-c 2,3,4
7. What are drum internals?
a. The riser tubes
b. The downcomer
c. The fittings located within the boiler drum
d. The internal shell
e. the fittings attached to the boiler drum or shell Correct Ans-c. The fittings
located within the boiler drum
, 8. The removal of impurities from the steam is extremely important because:
9. The boiler uses too much fuel
10. They will form deposits in the superheater tubes
11. The over heating of the tubes will result
12. Deposits will be formed on the turbine blades
a. 1,2,3,4
b. 1,2,3
c. 1,2,4
d. 1,3,4
e. 2,3,4 Correct Ans-e 2,3,4
13. The purpose of removing moisture from steam:
14. Is to lower the solids concentration of the steam
15. Is to lower the erosion effect on turbines
16. Is to save water make up to the boiler
17. Is to save money on the operation of the boiler system
a. 1,2,3,4
b. 1,2,3
c. 1,2,4
d. 1,3,4
e. 2,3,4 Correct Ans-c 1,2,4
18. The purpose of the steam washer is:
19. To scrub the incoming water
20. To absorb any gaseous impurities in the steam
21. To prevent excessive water make up to the boiler
22. To prevent silica build up in the superheater tubes
