159) In a four stroke cycle petrol engine, the expansion

starts at top dead centre and ends at bottom dead centre

starts at 30 Degree before top dead centre and ends at 50 Degree before bottom dead centre

starts at 30 Degree after top dead centre and ends at 50 Degree after bottom dead centre

may start and end anywhere

Answer is:

starts at 30 Degree before top dead centre and ends at 50 Degree before bottom dead centre

75% iso-octane and 25% normal heptane

75% normal heptane and 25% iso-octane

75% petrol and 25% diesel

75% diesel and 25% petrol

Answer is:

half

same

double

four times

Answer is:

higher heating value

higher flash point

lower volatility

longer ignition delay

Answer is:

hit and miss governing

qualitative governing

quantitative governing

none of these

Answer is: