Exercise: Steam Boilers And Engines

Questions for: Steam Boilers And Engines

Which of the following is correct ? (where pa = Actual mean effective pressure, pm = Theoretical mean effective pressure, and K = Diagram factor)
A:
pa = pm/K
B:
pa = pm x K
C:
pa = K/pm
D:
pa = pm + K
Answer: B
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The actual power generated in the engine cylinder is called
A:
indicated power
B:
brake power
C:
frictional power
D:
none of these
Answer: A
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In a Woolf type compound engine, the high pressure and low pressure cylinders
A:
have common piston rod
B:
are set at 90°
C:
have separate piston rod
D:
are set in V - arrangement
Answer: C
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The high steam and low water safety valve is not used in
A:
Cochran boiler
B:
Cornish boiler
C:
Lancashire boiler
D:
Locomotive boiler
Answer: D
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The function of a piston in a steam engine is
A:
to guide motion of the piston rod and to prevent it from bending
B:
to transfer motion from the piston to the cross-head
C:
to convert heat energy of the steam into mechanical work id) to exhaust steam from the cylinder at proper moment
D:
Answer: C
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