Equal to
Less than
Greater than
None of these
C. Greater than
6 to 10
10 to 15
15 to 25
25 to 40
Homogeneous
Heterogeneous
Both (A) and (B)
Laminar
Opens at top dead centre and closes at bottom dead centre
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
May open or close anywhere
Supercharging
Carburetion
Turbulence
Delay period
6 kg/cm
12 kg/cm
20 kg/cm
35 kg/cm
2-stroke petrol engine
4-stroke petrol engine
Diesel engine
Steam turbine
Theoretical power
Actual power
Indicated power
None of these
Supplying the intake of an engine with air at a density greater than the density of the surrounding atmosphere
Providing forced cooling air
Injecting excess fuel for raising more loads
Supplying compressed air to remove combustion products fully
Beginning of suction stroke
End of suction stroke
End of compression stroke
None of these
Mechanical efficiency
Overall efficiency
Indicated thermal efficiency
Volumetric efficiency
Inlet valve closing after bottom dead centre
Inlet valve closing before bottom dead centre
Inlet valve opening before top dead centre
Exhaust valve closing after top dead centre
40% cetane and 60% alpha methyl naphthalene
40% alpha methyl naphthalene and 60% cetane
40% petrol and 60% diesel
40% diesel and 60% petrol
5-10 kg/cm²
20-25 kg/cm²
60-80 kg/cm²
90-130 kg/cm²
Ignition coil
Spark plug
Carburettor
Fuel injector
Diesel cycle
Otto cycle
Dual combustion cycle
Special type of air cycle
1 sec
0.1 sec
0.01 sec
0.001 sec
Alcohol
Water
Lead
None of these
Haphazard motion of the gases in the chamber
Rotary motion of the gases in the chamber
Radial motion of the gases in the chamber
None of the above
Feeding more fuel
Heating incoming air
Scavenging
Supercharging
Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame
Temperature at which it solidifies or congeals
It catches fire without external aid
Indicated by 90% distillation temperature, i.e., when 90% of sample oil has distilled off
Minimum temperature to which oil is heated in order to give off inflammable vapours in sufficient quantity to ignite momentarily when brought in contact with a flame
Temperature at which it solidifies or congeals
It catches fire without external aid
Indicated by 90% distillation temperature i.e., when 90% of sample oil has distilled off
Geometry of the reflector
Energy of neutrons
Properties of the reflector
All of these
Increase in the rate of heat transfer, there is a reduction in the power output and efficiency of the engine
Excessive turbulence which removes most of the insulating gas boundary layer from the cylinder walls
High intensity of knock causes crankshaft vibration and the engine runs rough
None of the above
Morse test
Prony brake test
Motoring test
Heat balance test
Peak pressure
Rate of rise of pressure
Rate of rise of temperature
Peak temperature
Otto cycle
Joule cycle
Rankine cycle
Stirling cycle
Instantaneous and rapid burning of the first part of the charge
Instantaneous auto ignition of last part of charge
Delayed burning of the first part of the charge
Reduction of delay period
2000 to 4000 volts
4000 to 6000 volts
6000 to 10,000 volts
10,000 to 12,000 volts
Retarding the spark
Increasing the engine speed
Both (A) and (B)
None of these
Chemically correct mixture
Lean mixture
Rich mixture for idling
Rich mixture for over loads