In the engine cylinder
At the crank shaft
At the crank pin
None of these
B. At the crank shaft
Feeding more fuel
Heating incoming air
Scavenging
Supercharging
Cetane number 65
Octane number 65
Cetane number 35
Octane number 35
8 : 1
10 : 1
15 : 1
20 : 1 and less
6 to 10
10 to 15
15 to 25
25 to 40
A supercharger
A centrifugal blower
A vacuum chamber
An injection tube
6 to 10
10 to 15
15 to 25
25 to 40
Single cylinder petrol engine
Four stroke engine
Single cylinder diesel engine
Multi cylinder engine
Fuel pump
Fuel injector
Governor
Carburettor
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
[2(V₀/V₁)]/ [1 + (V₀/V₁)²]
(V₀/V₁)/ [1 + (V₀/V₁)²]
V₀/(V₀ + V₁)
V₁/(V₀ + V₁)
More efficient
Less efficient
Equally efficient
Other factors will decide it
Homogeneous
Heterogeneous
Both (A) and (B)
None of these
Fuel injection starts at 10° before to dead center and ends at 20° after tor dead center
Fuel injection starts at top dead center and ends at 20° after top dead center
Fuel injection starts at just before top dead center and ends just after top dead center
May start and end anywhere
Cetane number
Octane number
Calorific value
None of these
30° before top dead centre
30° after top dead centre
30° before bottom dead centre
30° after bottom dead centre
Short delay period
Late auto-ignition
Low compression ratio
High self ignition temperature of fuel
Increase
Decrease
Remain same
None of these
Is lighter
Wear is less
Absorbs shocks
Is stronger
Fuel pump
Fuel injector
Spark plug
None of these
250°C
500°C
1000°C
2000°C
80°C
120°C
180°C
240°C
Lean
Rich
Chemically correct
None of these
Scavenging
Turbulence
Supercharging
Pre-ignition
Same as
Smaller than
Bigger than
None of these
Maximum pressure developed
Minimum pressure
Instantaneous pressure at any instant
Average pressure
Highly ignitable
More difficult to ignite
Less difficult to ignite
None of these
Air alone
Air and fuel
Air and lub oil
Fuel alone
Requires smaller foundation
Is lighter
Consumes less lubricating oil
All of these
0.2 kg
0.25 kg
0.3 kg
0.35 kg
1 : 1
5 : 1
10 : 1
15 : 1