Cleaning
Priming
Scavenging
Detonation
C. Scavenging
Longer life
Lower rolling resistance
Smoother ride at low speeds
None of these
Controls the engine's air intake volume
Reduces the engine's air intake noise
Prevents rain water from entering the engine
Prevents dust and other foreign matter from entering the engine
Headlights and other electrical devices are switched off
Headlights and other electrical devices are switched on
Headlights and other lights are switched off
Headlights are switched on
Steel
Copper
Zinc
Aluminium
To vary the speed of automobile
To vary the torque at the wheels
To vary the power of automobile
None of these
Air and fuel
Only fuel
Only air
None of these
SAE 30
SAE 40
SAE 70
SAE 80
Optimisation of exhaust efficiency
Reduction of exhaust noise
Reduction of nitrogen oxide in the exhaust gases
Reduction of the exhaust gas volume
2.5
10
25
40
High temperature combustion
Incomplete combustion
Low temperature combustion
High atmospheric temperature combustion
Rear of the vehicle
Front of the vehicle
Left of the vehicle
Right of the vehicle
Trapping
Tapping
Bleeding
Cleaning
Higher
Lower
Same
Depends on fuel quality
Enhances safety by serving two independent lines in a divided line brake circuit
Enhances safety by activating the brakes using vacuum pressure in the event of brake fluid loss
Supplies equal fluid pressure to each line of a divided line brake circuit, thereby preventing the brakes from dragging on one side
Boosts the brake fluid pressure to reduce the force required to depress the brake pedal
4 : 1
8 : 1
15 : 1
20 : 1
Cylinder head
Cylinder block
Camshaft
Crankshaft
Improves steering comfort when steering wheel is turned to effect small changes in the direction of forward motion
Allows the steering wheel to be turned by a greater amount when steering
Makes the steering more responsive
Reduces the amount of kickback for large steering angles
Bigger flywheel
Smaller flywheel
Same size of flywheel
No flywheel
Sharp edged fragments
Small particles
Large particles
None of these
The electrolyte is pure distilled water
The electrolyte is pure sulphuric acid
The electrolyte is a mixture of 64% distilled water and 36% sulphuric acid by weight
The electrolyte is a mixture of 90% distilled water and 10% sulphuric acid by weight
Returns cylinder head lubricating oil to the oil pan at high speed
Turns oil into fine mist for spray lubrication
Regulates the pressure of engine oil supplied by the oil pump for the lubrication of cylinder head mechanism and other purposes
Removes impurities from cylinder head lubricating oil
36.5 MJ/kg
38.5 MJ/kg
42.5 MJ/kg
45.5 MJ/kg
SAE 30
API SF
SAE 20 W50
API 50
Volatility
Viscosity
Ignition quality
Delay period
Equal to the maximum engine torque
80 % of the maximum engine torque
150 % of the maximum engine torque
None of these
Reduce the resistance to sliding that occurs between the cam and the tappet
Allow for lengthening of the valves owing to the heat of combustion
Increase the speed at which the valves move up and down
Make the crankshaft turn smoothly
Increase
Decrease
Remain constant
Be doubled
Piston oil hole
Snap ring
Valve recess
Valve clearance
Front seats
Shoulder anchors
Seat belt retractors
Seat belt buckles
I
C
L
H