B.P = (Wl × 2πN)/60 watts
B.P = [(W - S) πDN]/60 watts
B.P = [(W - S) π (D + d) N]/60 watts
All of these
D. All of these
More efficient
Less efficient
Equally efficient
Other factors will decide it
Less difficult to ignite
Just about the same difficult to ignite
More difficult to ignite
Highly ignitable
Beginning of suction stroke
End of suction stroke
Beginning of exhaust stroke
End of exhaust stroke
Not run
Run more efficiently
Run at high speed
Explode
Temperature and pressure in the cylinder at the time of injection
Nature of the fuel mixture strength
Relative velocity between the fuel injection and air turbulence pressure of residual gases
All of the above
Mechanical efficiency
Overall efficiency
Indicated thermal efficiency
Volumetric efficiency
Equal to
Below
Above
None of these
Calorific value of oil
Low heat value of
High heat value of oil
Mean heat value of oil
2000 to 4000 volts
4000 to 6000 volts
6000 to 10,000 volts
10,000 to 12,000 volts
Exhaust valve opens at 35° before bottom dead centre and closes at 20° after top dead centre
Exhaust valve opens at bottom dead centre and closes at top dead centre
Exhaust valve opens just after bottom dead centre and closes just before top dead centre
May open and close anywhere
Single cylinder petrol engine
Four stroke engine
Single cylinder diesel engine
Multi cylinder engine
Decreasing the density of intake air
Increasing the temperature of intake air
Increasing the pressure of intake air
Decreasing the pressure of intake air
Unaffected
Lower
Higher
Dependent on other factors
250°C
500°C
1000°C
2000°C
Cetane number
Octane number
Calorific value
None of these
Alcohol
Water
Lead
None of these
Carburettor
Injector
Governor
None of these
6 to 10
10 to 15
15 to 25
25 to 40
Same
Less
More
Variable
Otto cycle
Diesel cycle
Dual combustion cycle
All of these
40% cetane and 60% alpha methyl naphthalene
40% alpha methyl naphthalene and 60% cetane
40% petrol and 60% diesel
40% diesel and 60% petrol
Highly ignitable
More difficult to ignite
Less difficult to ignite
None of these
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
130°
180°
230°
270°
Reducing the delay period
Raising the compression ratio
Increasing the inlet pressure of air
All of these
B.P = (Wl × 2πN)/60 watts
B.P = [(W - S) πDN]/60 watts
B.P = [(W - S) π (D + d) N]/60 watts
All of these
Air only
Petrol only
A mixture of petrol and air
None of these
0.3 to 0.7 mm
0.2 to 0.8 mm
0.4 to 0.9 mm
0.6 to 1.0 mm
Chemically correct air-fuel ratio by weight
Chemically correct air-fuel ratio by volume
Actual air-fuel ratio for maximum efficiency
None of the above
Paraffin, aromatic, napthene
Paraffin, napthene, aromatic
Napthene, aromatics, paraffin
Napthene, paraffin, aromatic