blow off cock
stop valve
superheater
none of these
✅ The correct answer is option D.
Steam Boilers and Engines MCQs
102. The length of Cornish boiler varies from
2 to 4.5 m
3 to 5 m
5 to 7.5 m
7 to 9 m
✅ The correct answer is option C.
103. When the total heat of steam is h kJ/kg and the sensible heat of feed water is hf1 kJ/kg, then the factor of evaporation is given by
none of these
✅ The correct answer is option A.
104. Which of the following compound steam engine requires a smaller flywheel ?
Receiver type
Tandem type
Woolf type
all of these
✅ The correct answer is option A.
105. Cut-off ratio is the ratio of
swept volume to the volume at cut-off
volume at cut-off to the clearance volume
volume at cut-off to the swept volume
clearance volume to th
✅ The correct answer is option C.
106. The draught is the __________ of pressures above and below the fire grate.
sum
difference
✅ The correct answer is option B.
107. Which of the following is a water tube boiler ?
Lancashire boiler
Babcock and Wilcox boiler
Locomotive boiler
Cochran boiler
✅ The correct answer is option B.
108. The water tubes in a Babcock and Wilcox boiler are
vertical
horizontal
inclined
✅ The correct answer is option C.
109. The motion of a D-slide valve in a steam engine is simple harmonic.
Yes
No
✅ The correct answer is option A.
110. Lancashire boiler is used where working pressure and power required are
low
moderate
high
none of these
✅ The correct answer is option B.