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Internal Combustion Engines

Internal Combustion Engines
The temperature of interior surface of cylinder wall in normal operation is not allowed to exceed

180°C
240°C
80°C
120°C

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Internal Combustion Engines
In petrol engines, advancing of the spark timing will ___ the knocking tendency.

Increase
Decrease
Not effect
None of the listed here

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Internal Combustion Engines
The basic requirement of a good combustion chamber is

Low compression ratio
Minimum turbulence
Low volumetric efficiency
High thermal efficiency and power output

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Internal Combustion Engines
The output of a diesel engine can be increased without increasing the engine revolution or size in following way

Feeding more fuel
Supercharging
Heating incoming air
Scavenging

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Internal Combustion Engines
The scavenging efficiency of a four stroke cycle diesel engine is

Below 50%
Between 95 and 100%
Between 85 and 95%
Between 50 and 85%

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Internal Combustion Engines
The thermodynamic cycle on which the petrol engine works, is

Otto cycle
Stirling cycle
Joule cycle
Rankine cycle

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MORE MCQ ON Internal Combustion Engines

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