In a four stroke cycle petrol engine, the compression

A Starts at 40° after bottom dead centre and ends at 30° before top dead centre
B Starts at 40° before bottom dead centre and ends at 30° after bottom dead centre
C Starts at bottom dead centre and ends at top dead centre
D May start and end anywhere

Correct Answer: Starts at 40° after bottom dead centre and ends at 30° before top dead centre

In a four stroke cycle petrol engine, the compression Starts at 40° after bottom dead centre and ends at 30° before top dead centre
Bissoy MCQ
#Mechanical Engineering #Internal Combustion Engines (I.C. Engines)

Related Questions

An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank?
A 33.5%
B 37.5%
C 40%
D 50%
An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank ?
A 33.5%
B 37.5%
C 40%
D 50%
A two stroke cycle engine gives ________ the number of power strokes as compared to the four stroke cycle engine, at the same engine speed.
A Half
B Same
C Double
D Four times
In a four stroke cycle petrol engine, the pressure inside the engine cylinder during the suction stroke is __________ the atmospheric pressure.
A equal to
B below
C above
D middle
Thermal efficiency of a two stroke cycle engine is _________ a four stroke cycle engine.
A Equal to
B Less than
C Greater than
D None of these
Theoretically, a four stroke cycle engine should develop _________ power as that of a two stroke cycle engine.
A Half
B Same
C Double
D Four times
In a four stroke I.C. engine, the turning moment during the compression stroke is
A positive throughout
B negative throughout
C positive during major portion of the stroke
D negative during major portion of the stroke
The pressure and temperature at the end of compression stroke in a petrol engine are of the order of
A 4 - 6 kg/cm2 and 200 - 250°C
B 6 - 12 kg/cm2 and 250 - 350°C
C 12 - 20 kg/cm2 and 350 - 450°C
D 20 - 30 kg/cm2 and 450 - 500°C
In a four stroke cycle petrol engine, the charge is ignited at
A 30° before top dead center
B 30° after top dead center
C 30° before bottom dead center
D 30° after bottom dead center
In a four stroke cycle petrol engine, the inlet valve
A Opens at top dead center and closes at bottom dead center
B Opens at 20° before top dead center and closes at 40° after bottom dead center
C Opens at 20° after top dead center and closes at 20° before bottom dead center
D May open or close anywhere

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