Steam Generator Types MCQs : This section focuses on the "Steam Generator Types". These Multiple Choice Questions (MCQs) should be practiced to improve the Steam Generator Types skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Question 1
Comparing fire tube and water tube boilers, which boiler can produce comparatively higher pressure steam than another for the same capacity?
A. fire tube boiler
B. water tube boiler
C. both can produce steam at same pressure for the same capacity
D. none of the mentioned
Question 2
How is the natural draught produced for exhaust gases?
A. by using fan
B. by using chimney
C. by using gravity
D. none of the mentioned
Question 3
In a fire-tube boiler, the water is in ___________
A. tube
B. shell
C. drum
D. all of the mentioned
Question 4
In a water-tube boiler, water flows through?
A. drum
B. shell
C. tube
D. none of the mentioned
Question 5
Industrial steam generators operate at a steam capacity of ___________
A. 1300 kg/s
B. 1000 kg/s
C. 500 kg/s
D. 125 kg/s
Question 6
Industrial steam generators operate in a pressure range of ___________
A. 5-105 bar
B. 6-106 bar
C. <5 bar
D. >105 bar
Question 7
Marine steam generators are ___________ fired.
A. water
B. oil
C. phenol
D. none of the mentioned
Question 8
The boiler in which the tubes are surrounded by hot gases is called ___________
A. fire tube boiler
B. water tube boiler
C. both fire and water tube boiler
D. none of the mentioned
Question 9
The formation of scale boiler leads to _________
A. decrease in efficiency of boiler
B. increase in efficiency of boiler
C. increase in heat transfer
D. decrease in maintenance of boiler
Question 10
The subcritical steam generators operate between a pressure ranges of ___________
A. 120-160 bar
B. 100-110 bar
C. 130-180 bar
D. 140- 200 bar
Question 11
What is the critical pressure of steam in a utility steam generator?
A. 220.2 bar
B. 221.2 bar
C. 222.2 bar
D. 225.2 bar
Question 12
What is the disadvantage of natural draught?
A. it has less life
B. it has more maintenance cost of cleaning and more capital cost to build the chimney
C. the available draught decreases with increasing outside air temperature
D. all of the mentioned
Question 13
What is the pH value of water permissible for boiler?
A. 0
B. 7
C. slightly less than 7
D. slightly more than 7
Question 14
What is the pressure range between which a marine steam generator works?
A. 100-200 bar
B. 60-65 bar
C. 80-100 bar
D. 70-85 bar
Question 15
What is the purpose of super heater in a boiler?
A. to increase the temperature of saturated steam with increase in its pressure
B. to increase the temperature of saturated steam without increase in its pressure
C. to increase the temperature of feedwater for better efficiency
D. none of the mentioned
Question 16
What is the purpose of using economizer in the boiler?
A. to heat feed water by utilizing heat from exhaust gases
B. to heat feed water by utilizing some heat from superheated steam
C. to superheat steam
D. none of the mentioned
Question 17
Which device used to separate condensate from the steam without letting steam escape?
A. condenser
B. steam valve
C. steam trap
D. none of the mentioned
Question 18
Which of the following are drumless once-through steam generators?
A. Subcritical steam generator
B. Supercritical steam generators
C. Utility steam generators
D. Marine steam generators
Question 19
Which of the following auxiliaries are not used in steam Generators?
A. economiser
B. burner
C. fan
D. stoker
Question 20
Which of these is not a type of steam generator depending upon the kind of applications?
A. utility steam generators
B. marine steam generators
C. agricultural steam generators
D. industrial steam generators