IC Engines and Nuclear Power Plants MCQs

air only

petrol only

a mixture of petrol and air

absorbs neutrons

does not absorb neutrons

accelerates neutrons

none of these

opens at 20° before top dead centre and closes at 40° after bottom dead centre

opens at 20° after top dead centre and closes at 20° before bottom dead centre

opens at top dead centre and closes at bottom dead centre

may open and close any

high self ignition temperature

low volatility

higher viscosity

all of these

enhanced by decreasing compression ratio

enhanced by increasing compression ratio

dependent on other factors

none of the above

cetane and iso-octane

cetane and alpha-methyl naphthalene

cetane and normal heptane

cetane and tetra ethyl

hit and miss governing

qualitative governing

quantitative governing

combination of (b) and

napthene

tetra ethyl lead

amyl nitrate

hexadecane

30 kW four-stroke petrol engine running at 1500 r.p.m.

30 kW two-stroke petrol engine running at 1500 r.p.m.

30 kW two-stroke diesel engine running at 750 r.p.m.

30 kW four-stroke dies

higher heating value

higher flash point

lower volatility

longer ignition delay