0
Q:

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) none of the mentioned
 
Answer & Explanation Answer: B) below

Explanation: None.

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74
Q:

In a four stroke cycle engine, the sequence of operation is __________

A) suction, compression, expansion and exhaust B) suction, expansion, compression and exhaust
C) expansion, compression, suction and exhaust D) compression, expansion, suction and exhaust
 
Answer & Explanation Answer: A) suction, compression, expansion and exhaust

Explanation: Four stroke cycle engine works on four strokes, i.e- suction, compression, expansion and exhaust.

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86
Q:

Theoretically, a four stroke engine should develop ____________ power as that of a two stroke cycle engine.

A) half B) same
C) double D) four times
 
Answer & Explanation Answer: A) half

Explanation: None.

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87
Q:

In a four stroke engine, the working cycle is completed in __________

A) one revolution of the crankshaft B) two revolution of the crankshaft
C) three revolution of the crankshaft D) four revolution of the crankshaft
 
Answer & Explanation Answer: B) two revolution of the crankshaft

Explanation: In a four stroke engine, the working cycle is completed in two revolution of the crankshaft while while in a two stroke engine, the working cycle is completed in one revolution.

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112
Q:

Number of working strokes per min. for a four stroke cycle engine are ____________ the speed of the engine in r.p.m.

A) equal to B) one-half
C) twice D) four-times
 
Answer & Explanation Answer: B) one-half

Explanation: Number of working strokes per min. for a four stroke cycle engine are one half the speed of the engine in r.p.m. while number of working strokes per min. for a two stroke cycle engine are equal to the speed of the engine in r.p.m.

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85
Q:

Number of working strokes per min. for a two stroke cycle engine are ____________ the speed of the engine in r.p.m.

A) equal to B) one-half
C) twice D) four-times
 
Answer & Explanation Answer: A) equal to

Explanation: Number of working strokes per min. for a two stroke cycle engine are equal to the speed of the engine in r.p.m while number of working strokes per min. for a four stroke cycle engine are one half the speed of the engine in r.p.m.

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140
Q:

The power actually developed by the engine cylinder of an I.C. engine is known as __________

A) theoretical power B) actual power
C) indicated power D) none of the mentioned
 
Answer & Explanation Answer: C) indicated power

Explanation: None.

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102
Q:

The indicated mean effective pressure of an engine is obtained from the indicator diagram drawn with the help of an engine indicator.

A) True B) False
 
Answer & Explanation Answer: A) True

Explanation: None.

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