TSEE MCQ part 2

16. What is the pressure range between which Lamont boilers operates?
a) 80-120bar
b) 120-160bar
c) 180-360bar
d) 450-560bar

Answer: b

17. In which year was Lamont boiler invented?
a) 1905
b) 1910
c) 1920
d) 1925

Answer: d

18. What type of steam is generated by evaporator tube of Lamont boiler?
a) Saturated steam
b) Unsaturated steam
c) Superheated steam
d) Flash steam

Answer: a

19. Where is water steam separator drum located in Lamont boiler?
a) Inside of the boiler
b) Right above the furnace
c) Before the feed water pump
d) Outside of boiler

Answer: d

20. What is the main disadvantage of Lamont boiler?

a) Less flexible in design
b) Low heat transfer rate
c) Formation of bubbles
d) Low steam generation capacity

Answer: c

21. In which year was Benson boiler was invented?
a) 1918
b) 1920
c) 1921
d) 1922

Answer: d

22. What type of boiler is a Benson boiler?
a) Super critical boiler
b) Fire tube boiler
c) Natural circulation boiler
d) Over-through boiler

Answer: a

23. What is the capacity of Benson boiler?
a) 180 tonnes/hr & above
b) 150 tonnes/hr & above
c) 250 tonnes/hr & above
d) 300 tonnes/hr & above

Answer: b

24. What is the major disadvantage of the Benson boilers?
a) Boiler is big in size
b) Has large storage capacity
c) Deposition of salts
d) Bubble formation

Answer: c

25. Why starting valve is closed and valve 2 is opened while taking boiler on range in Benson boiler?
a) Avoid excessive heating of tube
b) To maintain the constant flow of water
c) To avoid pressure built up in tubes
d) To avoid pipe leakages at joints

Answer: a