IC Engines and Nuclear Power Plants MCQs

[A]. mechanical efficiency

[B]. overall efficiency

[C]. volumetric efficiency

[D]. relative efficiency

[A]. 30° before top dead centre

[B]. 30° after top dead centre

[C]. 30° before bottom dead centre

[D]. 30° after bottom dead centre

[A]. petrol engines

[B]. diesel engines

[C]. multi-cylinder engines

[D]. all of these

[A]. opens at 50° before bottom dead centre and closes at 15° after top dead centre

[B]. opens at bottom dead centre and closes at top dead centre

[C]. opens at 50° after bottom dead centre and closes at 15° before top dead centre

[D]. may open and close anywhere

[A]. not effect

[B]. decrease

[C]. increase

null

[A]. 10 bar

[B]. 20 bar

[C]. 25 bar

[D]. 35 bar

[A]. same

[B]. lower

[C]. higher

null

[A]. not effect

[B]. decrease

[C]. increase

null

[A]. decreasing the density of intake air

[B]. increasing the temperature of intake air

[C]. increasing the pressure of intake air

[D]. decreasing the pressure of intake air

[A]. Otto cycle

[B]. Diesel cycle

[C]. Dual-combustion cycle

[D]. all of these