IC Engines and Nuclear Power Plants - Data Intensity 2 Multiple Questions and Answers.




21.The knocking in spark ignition engines can be reduced by
A. retarding the spark
B. increasing the engine speed
C. both (a) and (b)
D. none of these

22.The ratio of the brake power to the indicated power is called
A. mechanical efficiency
B. overall efficiency
C. indicated thermal efficiency
D. volumetric efficiency

23.The increase of efficiency of a compression ignition engine, as the load decreases, is due to
A. higher maximum temperature
B. qualitative governing
C. quantitative governing
D. hit and miss governing

24.The cetane (C16H34) which is a straight chain paraffin is assigned a cetane number of
A. 0
B. 50
C. 100
D. 120

25.Morse test is used to determine the I.P. of a
A. single cylinder petrol engine
B. four stroke engine
C. single cylinder diesel engine
D. multi-cylinder engine

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