The material generally used for cylinder sleeves is
Aluminium
Ceramic
Cast iron
Fibre reinforced plastic
Correct Answer :
C. Cast iron
Related Questions
The function of positive crankcase ventilation (PCV) system is that it
Mixes fuel with air
Promotes combustion by creating a swirling movement in the air-fuel mixture
Returns blow by gases from the crankcase to the intake system
Feeds blow by gases to the exhaust manifold
An engine has a clearance volume of 100 cm³ and a swept volume of 800 cm³. The compression ratio is
7 : 1
8 : 1
9 : 1
10 : 1
The brake warning light warns the driver of
Water in the master cylinder
Air in the hydraulic system
Failure of the primary or secondary circuit of hydraulic system
Power brake failure
In bias ply tyres
All plies run parallel to one another
Belts of steel mesh are used in the tyres
One ply layer runs diagonally one way and another layer runs diagonally the other way
All of the above
During suction stroke, the inside pressure of cylinder is
More than the atmospheric pressure
Less than the atmospheric pressure
Equal to the atmospheric pressure
None of these
The instrument used to check specific gravity of acid in a battery is
Hydrometer
Hygrometer
Anemometer
Multimeter
The sequence order of events in a four stroke engine is
Suction exhaust power compression
Suction power compression exhaust
Suction compression power exhaust
Exhaust compression power suction
The three basic cylinder arrangements for automotive engines are
Flat, radial, and V
In a row, in line, and opposed
In line, V, and opposed
V, double row, and opposed
The stroke of an engine is the
Volume of the cylinder
Length of the connecting rod
Internal diameter of the cylinder
Distance between T.D.C. and B.D.C.
In Diesel engines, the duration between the time of injection and the time of ignition is called
Spill cut-off
Delay period
Injection period
Ignition period
The coefficient of friction for the clutch facing is approximately
0.1
0.4
0.8
1.2
The component of the oil filter that prevents the passage of metal particles and sludge is
Element
Relief valve
Check valve
Case
The specific gravity of acid in a fully charged battery is generally
1.00
1.28
1.82
2.81
The seat belt tensioners are built in the
Front seats
Shoulder anchors
Seat belt retractors
Seat belt buckles
An overinflated tyre will wear the tread most near the
Edges
Corners
Centre
None of these
The formula for Isooctane is
C8H18
C7H17
C6H18
C7H18
The crescent shaped cavity on the piston head top surface is called as
Piston oil hole
Snap ring
Valve recess
Valve clearance
The power actually developed inside the engine cylinder is called as
Indicated power
Brake power
Frictional power
None of these
If the valve clearances are excessively large, the problem that can arise is
Overheating of the engine
Incomplete valve closure
Fouling of spark plug by gasoline
None of these
In a single dry plate clutch, torsional vibrations are absorbed by
Coil springs known as torsional springs
Cushion springs
Central hub
Clutch pedal
The basic part of the engine, to which the other engine parts are attached or assembled is the
Cylinder head
Crankshaft
Cylinder block
Oil pan
The aspect ratio (expressed in percentage) of the tyre is defined as the ratio of
Section width to section height
Section height to section width
Wheel diameter to section height
Wheel diameter to section width
The braking control type traction control system (TCS) generally operates in the speed range of
Less than 20 kmph
Less than 40 kmph
Less than 60 kmph
More than 60 kmph
The main function of the brake fluid is
Lubrication
Power transmission
Cooling
None of these
The function of a first compression ring (top ring) is that it
Increases the combustion temperature
Creates swirl
Maintains a seal and prevents the fuel leakage
Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber
The tilting of the front wheels away from the vertical, when viewed from the front of the car, is called
Camber
Caster
Toe in
Toe out
The best fuels for compression ignition engines are
Straight chain paraffin
Aromatics
Branched chain paraffin
Naphthalene
The advantage of the fuel injection system over the carburettor system is
Improved fuel efficiency
Improved emission
Improved power output
All of these
An oil filter bypass valve opens when the
Engine is cold
Engine overheats
Oil filter becomes clogged
Engine runs at high speed
The effect of having excess camber is
Excessive steering alignment torque
Hard steering
Too much traction
Uneven tyre wear