The function of a first compression ring (top ring) is that it

A Increases the combustion temperature
B Creates swirl
C Maintains a seal and prevents the fuel leakage
D Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber

Correct Answer: Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber

The function of a first compression ring is that it Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber
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Related Questions

The work done in isothermal compression compared to that in adiabatic compression will be
A Less
B More
C Same
D More or less depending upon the extent of work done
Highest useful compression ratio (HUCR) is the highest compression ratio at which the
A Engine can run
B Engine gives maximum output
C Engine is most efficient
D Fuel can be used in a test engine without knocking
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A Less than 1
B Between 1 and 1.5
C Between 1.5 and 2.0
D Greater than 2
The advantage of multistage compression over single stage compression is
A Lower power consumption per unit of air delivered
B Higher volumetric efficiency
C Decreased discharge temperature
D All of the above
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A Work done in first stage should be more
B Work done in subsequent stages should increase
C Work done in subsequent stages should decrease
D Work done in all stages should be equal
For a two stage compressor, if index of compression for higher stage is greater than index of compression for lower stage, then the optimum pressure as compared to ideal case will
A Increase
B Decrease
C Remain unaffected
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The temperature of ammonia after compression in a vapour compression system is
A 20 to 50°C
B 50 to 70°C
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