The theoretical indicator diagram of a simple steam engine is based upon the assumption that

Mechanical Engineering : Steam Boilers and Engines - Quiz(MCQ)

there is no pressure drop due to condensation

the expansion (or compression) of the steam is hyperbolic

steam is admitted at boiler pressure and exhausted at condenser pressure

All of the above

Correct Answer : Option (D) : All of the above

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In forced circulation steam boilers, the force is applied

to circulate water

to draw water

to drain off the water

All of the above

Correct Answer : to circulate water

The amount of water evaporated in kg per kg of fuel burnt is called

boiler efficiency

equivalent evaporation from and at 100Â° C

evaporative capacity of a boiler

None of the above

Correct Answer : evaporative capacity of a boiler

The ratio of the actual vacuum to the ideal vacuum in a condenser is called

nozzle efficiency

boiler efficiency

vacuum efficiency

condenser efficiency

Correct Answer : vacuum efficiency