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The intake charge in a diesel engine consists of


A) air alone
B) air + lubricating oil
C) air + fuel
D) air + fuel + lubricating oil

E) All of the above
F) B) and D)

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At the same speed two-stroke engine of the same size as a four-stroke engine will develop


A) same power
B) half the power
C) twice the power
D) four times the power

E) None of the above
F) B) and C)

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Charge pressure at the inlet port of a two-stroke engine is


A) 20 bar
B) vacuum
C) atmospheric
D) higher than atmospheric

E) A) and C)
F) B) and C)

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Brake specific fuel consumption is defined as


A) fuel consumption per hour
B) fuel consumption per km
C) fuel consumption per BP
D) fuel consumption per brake power hour

E) None of the above
F) A) and B)

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Thermal efficiency of CI engine is higher than that of SI engine due


A) light weight
B) higher compression ratio
C) constant pressure heat addition
D) none of the above

E) A) and D)
F) None of the above

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