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Internal Combustion Engines

Internal Combustion Engines
Scavenging is usually done to increase

Power output
Thermal efficiency
Speed
Fuel consumption

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Internal Combustion Engines
A diesel engine has

4 valves
2 valves
1 valve
3 valves

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Internal Combustion Engines
The pressure at the end of compression in the case of diesel engine is of the order of

35 kg/cm
6 kg/cm
12 kg/cm
20 kg/cm

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Internal Combustion Engines
If the temperature of intake air in internal combustion engine increases, then its efficiency will

None of the listed here
Remain same
Decrease
Increase

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Internal Combustion Engines
A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of

75% normal heptane and 25% iso-octane
75% petrol and 25% diesel
75% diesel and 25% petrol
75% iso-octane and 25% normal heptane

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Internal Combustion Engines
The specific fuel consumption per BH hour for a petrol engine is approximately

0.2 kg
0.3 kg
0.25 kg
0.15 kg

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MORE MCQ ON Internal Combustion Engines

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