1. In
a glass tube type water indicator for a boiler, one end of the tube is
connected to water space and the other end is connected to
A. water
space also
B. chimney
C. steam space
D. super heater
Answer: C
2. In
water tube boilers
A. water
passes through the tubes which are surrounded by flames and hot gases
B. the flames and hot gases pass
through the tubes which are surrounded by water
C. forced circulation takes place
D. none of these
Answer: A
3. Which of the following statement is
wrong ?
A. Locomotive
boiler is a water tube boiler.
B. Water tube boilers are
internally fired.
C. La-mont boiler is a low pressure
water tube boiler.
D. all of the above
Answer: D
4. The natural draught is produced by
A. steam
jet
B. centrifugal fan
C. chimney
D. both (a) and (b)
Answer: C
5. Willian's
line for the steam engine is a straight line relationship between the steam
consumption per hour and
A. indicated
power
B. brake power
C. efficiency
D. pressure of steam
Answer: A
6. Which of the following statement is
correct ?
A. A fire tube boiler occupies less space than a
water tube boiler, for a given power.
B. Steam at a high pressure and in
large quantities can be produced with a simple vertical boiler.
C. A simple vertical boiler has one
fire tube.
D. all of the above
Answer: C
7. The diameter of flue tube in a
Cornish boiler is __________ that of the shell.
A. one-fourth B. one-third
C. two-fifth D. three-fifth
Answer: D
8. An economiser __________ the steam
raising capacity of a boiler.
A. increases
B. decreases
C. has no
effect on
Answer: A
9. Fire tube boilers are
A. internally
fired
B. externally
fired
C. internally
as well as externally fired
D. none of
these
Answer: A
10. A safety valve usually employed with
stationary boilers is
A. lever
safety valve
B. dead
weight safety valve
C. high
steam and low water safety valve
D. all of
these
Answer: D
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