Correct Answer : spark ignition
Correct Answer : short delay period
Correct Answer : increase
Correct Answer : normal heptane and iso-octane
Correct Answer : compression ignition
Correct Answer : 0.25 kg
Correct Answer : concrete
Correct Answer : 50%
Correct Answer : beginning of suction stroke
Correct Answer : U238
Correct Answer : graphite and concrete
Correct Answer : volumetric efficiency
Correct Answer : All of the above
Correct Answer : decreases
Correct Answer : equal to
Correct Answer : opens at 50° before bottom dead centre and closes at 15° after top dead centre
Correct Answer : constant
Correct Answer : 40 to 55
Correct Answer : induce primary swirl
Correct Answer : indicated power
Correct Answer : paraffins, napthenes, aromatics
Correct Answer : 6 to 10
Correct Answer : when U238 is irradiated by neutrons
Correct Answer : overall efficiency
Correct Answer : 2Vâ‚€ / Vâ‚€+Vâ‚
Correct Answer : neutron and gamma rays
Correct Answer : reduce
Correct Answer : half
Correct Answer : 100
Correct Answer : supercharging
Correct Answer : high
Correct Answer : Disagree
Correct Answer : higher
Correct Answer : 15:1
Correct Answer : True
Correct Answer : Agree
Correct Answer : 40% cetane and 60% alpha methyl napthalene
Correct Answer : cetane and alpha-methyl naphthalene
Correct Answer : 0.002 second
Correct Answer : below
Correct Answer : 10 bar
Correct Answer : more efficient
Correct Answer : inlet valve closing before bottom dead centre
Correct Answer : increasing the pressure of intake air
Correct Answer : starts at 15° after top dead centre and ends at 30° before bottom dead centre
Correct Answer : Any one of the above
Correct Answer : 30° before top dead centre
Correct Answer : delay period
Correct Answer : no moderator is needed
Correct Answer : slow down the speed of fast moving neutrons
Correct Answer : relative efficiency
Correct Answer : pre-ignition
Correct Answer : 80 to 100
Correct Answer : 0
Correct Answer : 1 - 1/rγ - 1
Correct Answer : at the crank shaft
Correct Answer : Incorrect
Correct Answer : F.P. = I.P. - B.P.
Correct Answer : to time the spark
Correct Answer : 15 to 25
Correct Answer : a mixture of petrol and air
Correct Answer : 0.2 kg
Correct Answer : larger
Correct Answer : less
Correct Answer : qualitative governing
Correct Answer : longer ignition delay
Correct Answer : double
Correct Answer : cetane number
Correct Answer : 75% iso-octane and 25% normal heptane
Correct Answer : starts at 30° before top dead centre and ends at 50° before bottom dead centre
Correct Answer : Both (A) and (B)
Correct Answer : quantitative governing
Correct Answer : decrease
Correct Answer : density
Correct Answer : higher knocking will occur
Correct Answer : bigger than
Correct Answer : four stroke C.I. engine, four stroke S.I. engine, two stroke S.I. engine
Correct Answer : Normal heptane
Correct Answer : hetrogeneous
Correct Answer : 2.46
Correct Answer : enriched uranium
Correct Answer : Yes
Correct Answer : 70%
Correct Answer : flow is produced due to the static head in the float chamber
Correct Answer : water
Correct Answer : starts at 40° after bottom dead centre and ends at 10° before top dead centre
Correct Answer : opens at 20° before top dead centre and closes at 40° after bottom dead centre
Correct Answer : detonation
Correct Answer : carburettor
Correct Answer : 75 to 90%
Correct Answer : Carburettor
Correct Answer : The fuel supplied to the engine cylinder is mixed with necessary amount of air and the mixture in ignited with the help of a spark plug.
Correct Answer : black
Correct Answer : increases
Correct Answer : rotary motion of the gases in the chamber
Correct Answer : octane number 65
Correct Answer : 2400 km/h
Correct Answer : To eliminate knock in compression ignition engines, we want to achieve auto-ignition not early and desire a long delay period.
Correct Answer : octane number
Correct Answer : low moderating efficiency
Correct Answer : reduce maximum pressure and maximum temperature
Correct Answer : opens at 15° before top dead centre and closes at 20° after top dead centre
Correct Answer : more difficult to ignite
Correct Answer : enhanced by decreasing compression ratio
Correct Answer : suction, compression, expansion and exhaust
Correct Answer : 0.6 to 1.8 mm
Explanation : Spark plugs in automobiles generally have a gap between 0.6 and 1.8 mm (0.024 and 0.071 in). The gap may require adjustment from the out-of-the-box gap.
Correct Answer : one-half
Correct Answer : not run
Correct Answer : reducing the compression ratio
Correct Answer : compression ratio
Correct Answer : three valves
Correct Answer : petrol and air
Correct Answer : above
Correct Answer : when thorium is irradiated by neutrons
Correct Answer : 35 bar
Correct Answer : 200
Correct Answer : 30 kW four-stroke petrol engine running at 1500 r.p.m.
Correct Answer : less than
Correct Answer : nuclear power plant
Correct Answer : 30%
Correct Answer : mechanical efficiency
Correct Answer : False
Correct Answer : multi-cylinder engine
Correct Answer : Tarapur
Correct Answer : scavenging
Correct Answer : air only
Correct Answer : amyl nitrate
Correct Answer : greater than
Correct Answer : starts at 40° after bottom dead centre and ends at 30° before top dead centre
Correct Answer : Morse test
Correct Answer : end of suction stroke
Correct Answer : Fuel injector
Correct Answer : 264 cm³
Correct Answer : multi-cylinder engines
Correct Answer : 100 bar
Correct Answer : high thermal efficiency and power output
Correct Answer : Dual-combustion cycle
Correct Answer : boiling water
Correct Answer : U₂₃₃ and Pu₂₃₉
Correct Answer : does not absorb neutrons
Correct Answer : 230°
Correct Answer : Otto cycle
Correct Answer : opens at 30° before bottom dead cnetre and closes at 10° after top dead centre
Correct Answer : 14.6:1
Correct Answer : absorb excess neutrons
Correct Answer : very high
Correct Answer : between 95 and 100%
Correct Answer : 6000 to 10 000 volts
Correct Answer : rich
Correct Answer : spark plug
Correct Answer : Iso-octane
Correct Answer : chemically correct air-fuel ratio by volume
Correct Answer : U₂₃₄ = 0.006%, U₂₃₅ = 0.712% and U₂₃₈ = 99.282%
Correct Answer : two revolutions of the crankshaft
Correct Answer : 1 to 99%