The pressure of steam in the engine cylinder at the beginning of the stroke is _

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Question
The pressure of steam in the engine cylinder at the beginning of the stroke is __________ the boiler pressure.
Options
A. equal to
B. less than
C. higher than

Correct Answer

less than

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3. The function of a flywheel is
Options
A. to convert reciprocating motion of the piston into rotary motion.
B. to convert rotary motion of the crankshaft into to and fro motion of the valve rod
C. to prevent fluctuation of speed
D. to keep the engine speed uniform at all load conditions

6. A safety valve mainly used with locomotive and marine boilers is
Options
A. lever safety valve
B. dead weight safety valve
C. high steam and low water safety valve
D. spring loaded safety valve

7. The power of a boiler may be defined as
Options
A. the ratio of heat actually used in producing the steam to the heat liberated in the furnace
B. the amount of water evaporated or steam produced in kg per kg of fuel burnt
C. the amount of water evaporated from and at 100� C into dry and saturated steam
D. the evaporation of 15.653 kg of water per hour from and at 100� C

8. In a uniflow engine
Options
A. steam enters and exhausts through the same port
B. steam enters at one end and exhausts at the centre
C. steam enters at the centre and exhausts at the other end
D. none of the above

9. Cut-off governing of steam engines is a method of controlling the engine output by varying
Options
A. volume of intake steam
B. pressure of intake steam
C. temperature of intake steam
D. all of these

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