Basic Mechanical Engineering (3110006) MCQs

MCQs of Steam Boilers

Showing 21 to 30 out of 65 Questions
21.
A closed vessel used for the generation of steam at a desired temperature and pressure is called a
(a) steam boiler
(b) steam turbine
(c) steam condenser
(d) steam injector
Answer:

Option (a)

22.
In water tube boilers
(a) water passes through the tubes which are surrounded by hot gases
(b) hot gas passes through the tubes which are surrounded by water
(c) forced circulation takes place
(d) none of these
Answer:

Option (a)

23.
In fire tube boilers
(a) water passes through the tubes which are surrounded by hot gases
(b) hot gas passes through the tubes which are surrounded by water
(c) forced circulation takes place
(d) none of these
Answer:

Option (b)

24.
Which one of the externally fired boiler?
(a) Babcock and Wilcox
(b) Lancashire
(c) Cochran
(d) All of the above
Answer:

Option (a)

25.
Fire tube boilers are
(a) internally fired
(b) externally fired
(c) internally as well as externally fired
(d) none of these
Answer:

Option (a)

26.
When the circulation of water in a boiler, is by convection currents which are set up during the heating of water, then the boiler is known as
(a) internally fired boiler
(b) externally fired boiler
(c) natural circulation boiler
(d) forced circulation boiler
Answer:

Option (c)

27.
When the circulation of water in a boiler is by a pump, then the boiler is known as
(a) internally fired boiler
(b) externally fired boiler
(c) natural circulation boiler
(d) forced circulation boiler
Answer:

Option (d)

28.
In fire tube boilers, the pressure is limited to
(a) 16 bar
(b) 32 bar
(c) 48 bar
(d) 64 bar
Answer:

Option (a)

29.
Cochran boiler is a
(a) horizontal fire tube boiler
(b) horizontal water tube boiler
(c) vertical water tube boiler
(d) vertical fire tube boiler
Answer:

Option (d)

30.
The fire tubes in a Cochran boiler are
(a) horizontal
(b) vertical
(c) inclined
(d) none of the above
Answer:

Option (a)

Showing 21 to 30 out of 65 Questions