Automobile Engineering Total MCQ

Automobile Engineering Total MCQ

Que. The oil pump is driven by the

A .crankshaft directly

Que. The vehicle ride will be comfortable if

A .unsprung mass is kept minimum

Que. The main function of intake manifold is that it

A .distributes intake air equally to the cylinders

Que. A front stabilizer bar is used to

A .control suspension movement and body roll

Que. When indicated power (I.P.) and frictional power (F.P.) are known, we can calculate

A .brake power

Que. A battery can be charged by

A .applying voltage in the reverse direction to that of charging

Que. The best fuels for compression ignition engines are

A .napthalenes

Que. Damper is also known as

A .shock absorber

Que. The main function of a resonator is that it

A .reduces the intake air noise

Que. For the same maximum pressure and temperature  

A . Diesel cycle is more efficient than Otto cycle

Que. The fuel pump of a programmed fuel injection (PFI) system operate for two seconds when the ignition is turned to the start position to

A .pressurize the fuel system before the engine is started

Que. In which of the following conditions, the idle CO percentage should be measured with the vehicle ?

A. Headlights and other electrical devices are switched off.

Que. The mechanical efficiency (ηm) of an I.C. engine is equal to (where I.P. = Indicated power, B.P. = Brake power and F.P. = Frictional power)

A  .B.P/I.P.

Que. The lower cylindrical portion of the piston which improves piston cooling performance is called

A .piston skirt

Que. The most effective method of controlling S.I. engine exhaust emission is by

A .using catalytic converter

Que. The power actually developed inside the engine cylinder is called as

A .indicated power

Que. When cornering, the differential generates a difference in the speed of the left and right wheels.

A. True

Que. If clearance volume of I.C. engines is increased, the compression ratio will

A .decrease

Que. The basic function of the suspension is to

  A.  absorb vibration and impact forces from the road surface

Que. Damper in an automobile is used to

A .dissipate the energy

Que. The combustion process in a Diesel engine is a

A .constant pressure process

Que. The damper fluid leakage typically occur from

A .clearance between inner and outer tubes of damper

Que. The compression ratio of a petrol engine is nearly

A .8:1

Que. The rigid suspension is beneficial when

A .large changes in load make it necessary to have a large suspension stroke

Que. The tyre rotation is generally done at

A .10000 km

Que . The function of a proportioning control valve (PCV) in a brake system is to

A . cause less brake fluid pressure to act on the rear brakes than on the front brakes when the fluid pressure exceeds a predetermined level.

Que. An under-inflated tyre will wear the tread most

A .near the edges

Que . The auto ignition in a spark

ignition engine means

A .ignition of the charge before the passage of flame front

Que. Two general types of tyres are

    A.  tube type and tubeless

Que. The discharged lead-acid battery has on its plates

    A.   lead sulphate (PbSO4)

Que. During suction stroke, the inside pressure of cylinder is

A .less than the atmospheric pressure

Que. The function of an oil control orifice is that it

   A.  regulates the pressure of engine oil supplied by the oil pump for the lubrication of cylinder head mechanism and other purposes

Que. The advantage of having a tandem master cylinder arrangement in automobiles is that it

   A.  enhances safety by serving two independent lines in a
   
   divided-line brake circuit

Que. In petrol engines, during suction stroke, __________ is drawn in the cylinder

   
    A.  air and fuel

Que. The purpose of adding pigment to the paint is that it

A .gives color and filling up effect to the paint

Que. A laminated glass upon cracking

A .sandwiched layer traps the fragments

Que. In a four speed four stroke Diesel engine, the intake valve   

   A.  opens at 20° before T.D.C. and closes at 35° after B.D.C.

Que. When the top of the wheel is tilted outward, then it is called

    A.  positive camber

Que. The purpose of transmission in an automobile is

A .to vary the torque at the wheels

Que. The commonly used antifreeze solution in automobiles is

A .ethylene glycol

Que. Engine misfiring is likely to result from

A .spark plug gap too wide

Que. The basic part of the engine, to which the other engine parts are attached or assembled is the

    A.  cylinder block

Que. Which of the following bulb in a car will have the least wattage ?

A .Ignition warning bulb

Que. Positive camber is used to compensate for wheels tilting inward due to the weight of the vehicle.

A. Yes

Que. In automobiles G.V.W. refers to  

    A.  gross vehicle weight

Que. The firing order for an in-line four cylinder I.C. engine is

A .1-3-4-2

Que. In a ventilated disc brake,

   A.  disc contains radial vanes between its rubbing surfaces for optimum cooling performance

Que. The effect of having excess camber is

A .uneven tyre wear

Que. The materials used for cylinder block are

A .cast iron and aluminum alloy

Que .The positive plates of a lead acid battery has  

A .lead peroxide (PbO2)

Que.  The path taken by intake air is

A .air cleaner carburetor (or throttle body) intake manifold intake ports cylinders

Que. The basic purpose of tyre rotation on automobiles is to  

A .equalize wear

Que. Which of the following is not an automobile ?

A .Aeroplane

Que. In a square type engine

   A.  Stroke length and cylinder bore are same

Que. The ignition in a spark ignition engine takes place when the piston is

A .approaching the T.D.C. position on its compression stroke

Que . The camshaft is driven by the crankshaft via the timing belt.

A .Correct

Que . The engine oil is stored in __________ when the engine is not running.

    A.  oil pan

Que. The most commonly used power plant in automobiles is

A  .I.C. engine

Que. The condition that results in large quantities of CO emission is

   A.  insufficient air during combustion

Que . In comparison with a radial tyre, one advantage of a bias-ply tyre is

   A.  Smoother ride at low speeds

Que. The sequence order of events in a four-stroke engine is

A .suction- compression – power - exhaust

Que. Which of the following is not a

part of the chassis ?

A .Seats

Que. The capacity of a battery is usually expressed in terms of

A .ampere-hours

Que. Vulcanizing means

   A.  heating rubber under pressure

Que . The engine torque increases with the increase in engine speed up to a certain point after which it starts to fall down.  

A. Correct

Que. The instrument used to check specific gravity of acid in a battery is  

    A.  hydrometer

Que. The material generally used for cylinder sleeves is

A .cast iron

   

Que. When turning a corner,

A.the front wheels are toeing out

   B.the front wheels are turning on different angles

   C.the inside front wheels has a greater angle than the outside    wheel.  

   D.all of the above

Que. The acid used in automobile battery is

A .sulphuric acid  

Que. The rolling resistance is because of the friction between the

A .tyre and the road surface

Que. The Diesel engine works on

A .Diesel cycle

Que. When a gear box has four forward speeds and one reverse speed, it is said to be a

A .4-speed gear box

Que. The basic purpose of providing caster angle on wheels is to

    A.  Maintain directional control

Que. When the piston is at T.D.C, the volume above the piston in the combustion chamber is the

A. clearance volume

Que. In a hydraulic power steering system, the power steering pump is driven by a

A .belt-driven by crankshaft

Que . The correct way to rectify an imbalanced wheel is to

A .attach appropriate weights to the wheel at appropriate positions

Que. The fuel that detonates easily, is

     A.  n-heptane

Que. When the engine speed increases, the ignition timing must be advanced.

A.Yes

Que. The main cause for the change in engine oil viscosity is

A .temperature

Que . The problems caused by the wheel imbalance are

A .steering wheel vibrations and uneven tyre wear

Que. The connecting rod lower end is connected to the relevant __________ of crankshaft.

A .journal

Que. The parking brake generally acts on

A .rear wheels

Que . The forced-fed lubrication system means that the oil is delivered to the engine by

A .the pressure created by the oil pump

Que. The connecting rod connects the piston and the

A .crankshaft

Que. Valve overlap is the number of degrees of camshaft rotation during which

A.both valves are open

Que. The engine's idling speed will increase by a slight degree immediately after a cold engine has been started. It will drop as the engine warms up. and it will eventually reach the standard level.

A.True

Que. The component that is responsible for converting the rotation of the steering wheel into lateral motion is the

A .steering gearbox

Que. The crankcase dilution means

A .dilution of lubrication oil by fuel in the crankcase

Que. The PCV valve incorporates a spring loaded plunger and opens in proportion to the level of vacuum pressure in the intake manifold.

    A.  Agree

Que. The motion of the cam is

transferred to the rocker arm, moving it upwards and downwards.

Que . This rocker-arm motion then forces the valve downwards against the force in the valve spring so that the valve can open.   

A.True

Que. The fuel pump in the programmed fuel injection (PFI) system is located

A.in the fuel tank

Que. The camshaft of a four stroke Diesel engine running at 1000 rpm will run at

A.500 rpm

Que. The main merit of a multi-cylinder type cylinder sleeve is

   A.  smaller engine dimensions

Que. A maintenance free battery

    A.  has lead-calcium plate grid

Que. The function of a connecting rod is

A .to transmit motion of the piston to the crankshaft

Que. In a Diesel engine, the fuel is ignited by

A.the heat of compression

Que. The engine oil level should be checked

A .a few minutes after the ignition switch is turned off

Que. In a four cylinder in-line engine, the number of firing strokes in one revolution of the crank is

A  .2

Que. If the air-fuel mixture in a spark ignition engine is too rich, then airfuel ratio is about

A .10:1

Que. The advantage of double-wishbone suspension design is that a large amount of freedom is available for setting geometry and precise settings can be made for driving comfort and steerability,

   A.  Correct

Que. If the level of tension in the belt is too high, it can result in a loss of power or in bending of the rotating shaft or crankshaft.

A.Correct

Que. If the air-fuel mixture ignites before the spark takes place at spark plug, the condition is called

A .pre-ignition

Que. The advantage of a tubeless tyre over tube type tyre is

A.slow air leakage

B.better fuel efficiency

C. less chances of running flat

D.all of these

Que. The Diesel engines as compared to petrol engines require

A.bigger flywheel

Que. In a forced feed lubrication system, the device used to guard against excessive oil pressure, is known as

A.relief valve

Que. The seat belt tensioners are built in the

A.seat belt retractors

Que. When the vehicle is at rest, the clutch is in engaged position.

A.Correct

Que. The gear shift lever requires two separate motions to shift gears, and the first movement

A .selects the synchronizer

Que. Two speed reverse gear arrangement is generally provided in case of

A .tractors

Que. Wheel base of a vehicle is the

  A.  distance between the centres of the front and rear wheels

Que. Which of the following oil is more viscous ?

A.SAE 80

Que. Odometer is an instrument used for measurement of

A .distance

Que. A heat treated glass generally used in automobiles bursts into__________ upon cracking,

A.sharp edged fragments

Que. In Diesel engines, the duration between the time of injection and the time of ignition is called

A .delay period

Que. The negative terminal post on the top of a battery is

A.smaller than the positive terminal post

Que. In a single dry plate clutch, torsional vibrations are absorbed by

A.coil springs known as torsional springs

Que. In a four wheel drive (4WD), the number of gear boxes are

A .2

Que. How many cells are used in a 12 volt car battery ?

A.6

Que. In an engine, the temperature of the piston will be more at the

    A.  crown of the piston

Que. An over-inflated tyre will wear the tread most near the

A .centre

Que. Cushioning springs in clutch plate reduces

   A.  jerky starts

Que. In a four stroke engine for each crankshaft revolution, the camshaft revolves

A.one-half turn

Que. If a tyre is designated as 175/65 R14 82 S, then the aspect ratio for the tyre is

A.65

Que. An engine has a clearance volume of 100 cm3 and a swept volume of 800 cm3. The compression ratio is

A .9:1

Que. Toe-in ensures parallel rolling of the wheel thus stabilizing steering in addition to preventing both sides slipping and excessive tyre wear.

A.Correct

Que. The valve tappet clearance is measured by

   A.  feeler gauge

Que. The basic purpose of tyres is to

A.grip the road and provide good traction

Que. The specific gravity of petrol is about

A.0.75

Que. The clutch is located between the transmission and the

A.engine

Que. Which one of the following statement correctly describe the construction of a bevel-gear type differential?

A.The differential carrier houses differential pinion gears and side gears

Que. The brake warning light warns the driver of

A .failure of the primary or secondary circuit of hydraulic system

Que. Highest useful compression ratio (HUCR) is the highest compression ratio at which the

A .fuel can be used in a test engine without knocking

Que. In Diesel engines, during suction stroke, only air is drawn in the

a. cylinder.

Que. The formula for Iso-octane is

A.C8H18

Que. The crankshaft of a typical in-line four cylinder engine has __________ balance weights.

A .8

Que. The function of a governor in automobiles is to

A .limit the vehicle speed

Que. A petrol that detonates easily is called

A .low octane petrol

Que .In comparison to frame type construction, the frameless structure construction of automobiles is economical when produced in __________ numbers.

A .large

Que. The minimum parking brake force is generally 20% of

A.gross vehicle mass (GVM).

Que. Bead wires are made of

A .steel

Que. The condition that results in large quantities of HC emission is

A .incomplete combustion

Que. The advantage of the fuel injection system over the carburetor system is

A.improved fuel efficiency

B. improved emission

C.improved power output

D.all of these

Que. The component of the oil filter that prevents the passage of metal particles and sludge is

    A.  element.

Que. Which one of the following statements correctly describes the construction of a planetary gear type differential ?

A .One drive shaft is splined to the central gear and the other to the planetary gear.

Que. The engine oil viscosity is defined by __________ ratings.

   A.  society of automotive engineers (SAE)

Que. If the valve clearances are excessively large, the problem that can arise is

A .incomplete valve closure

Que. The power source for a brake booster is

A .the pressure difference between the atmospheric pressure and the vaccum pressure in the intake manifold

Que. The Diesel engines are also known as

A .compression ignition (C.I.) engines

Que. The specific gravity of acid in a fully charged battery is generally

A.1.28

Que. The brake pedal during ABS operation

A .transmits slight kickback to the driver's foot

Que. The information provided by the oxygen (O2) sensor to the feedback control system is about the

A. air-fuel ratio

Que. The diagram which shows the correct crank positions corresponding to the opening and closing of the valves, is known as

A.valve timing diagram

Que. The difference between DOT 3 and DOT 4 brake fluids is

A.DOT 4 fluid has a higher boiling point than DOT 3 fluid

Que. The battery is an electrochemical device, which means battery

A .uses chemical action to provide electricity

Que. The operation of removing trapped air from the hydraulic braking system is known as

   A.  bleeding

Que. The aluminum alloy is used in cylinder blocks because

A.it is lighter and have good heat dissipation characteristics

Que. The tilting of the front wheels away from the vertical, when viewed from the front of the car, is called

A. camber

Que. The main function of the tread pattern on tyre is that

A.in wet conditions, the tread grooves expel water that is drawn between the tyre and road surface

Que. The compression ratio in petrol engine is kept less than in Diesel engine because

A .higher or equivalent compression ratio in petrol engines is not possible due to pre-ignition

Que. The most commonly used supplementary restraint system (SRS) component is

A .airbag

Que. The natural gas is compressed in a CNG cylinder at a pressure of

A.200 bar

Que. The cetane rating of Diesel fuel is in the order of

A.45

Que. The air gap between the central electrode and ground (or side) electrode of a spark plug is around

A .1 mm

Que. The cetane number of a Diesel fuel is a measure of

   A.  delay period

            

Que. The smooth shift mechanism of an automatic transmission reduces the degree of shock at shifting of gears.

A.Yes

Que. The seat belt will move out smoothly when pulled out slowly, but it will lock when pulled quickly.

A. Agree

Que. In bias ply tyres

A.one ply layer runs diagonally one way and another layer runs diagonally the other way

Que. The boiling point of Diesel fuel is in the range of

A .180°C to 360 °C

Que. During braking, the brake shoe is moved outward to force the lining against the

A.brake drum

Que . The braking control type traction control system (TCS) generally operates in the speed range of

    B.  less than 40 kmph

Que. If the spark plug deposit indicates black coating of soot, it indicates that the engine has been generally operating on

A .too rich mixture

Que. The two rows of cylinders in a 'V' type engine are generally arranged at

B.60°

Que. The crescent-shaped cavity on the piston head top surface is called as

A .valve recess

Que. The octane rating of petrol commercially available is

A.85-95

Que. The stroke of an engine is the

   A.  Distance between T.D.C. and B.D.C.

Que. The function of a second ring is that it is a

A .compression ring and aids the top ring in sealing and cooling

Que. The characteristic that is enhanced by the use of cylinder sleeves is

A .resistance to wear

Que. The differential ensures that each wheel is driven at a speed which corresponds to the distance it must travel around a corner, and it consequently prevents against excessive tyre wear.

A .Agree

Que. The rating of C.I. engine fuel (Diesel) is given by

A .cetane number

Que. Which part of the automobile tyre is subjected to greatest flexing action ?

A .Side wall

Que. The temperature at which tyre inflation pressure should be checked is

A .ambient temperature

Que. The calorific value of Diesel is about

C.42.5 MJ/kg

Que. The negative plates of a lead acid battery has

A .spongy lead (Pb)

Que. The function of oil-control rings is

   
   A.  that it prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan

Que. The starter motor is driven by

   A.  gear drive

Que. The correct flow of power through the drive train is

A .engine-clutch – mainshaft- countershaft -final driven gear -driveshafts - wheels

Que. The octane number of compressed natural gas (CNG) is

A .120

Que. The compression ratio for Diesel engines usually lies in the range of

A.15-25

Que. In a petrol engine, the high voltage for spark plug is in the order of

A.22 kilovolts

Que. The piston compression rings are made of

   A.  cast iron

Que. The aspect ratio (expressed in percentage) of the tyre is defined as the ratio of

A .section height to section width

Que. Two advantages of using helical gears rather than spur gears in a transmission system are

A .noise level and strength

Que. In order to implement gear changes in the gear unit of an

automatic transmission, a __________ is used.

A .hydraulic multi plate clutch

Que. When the brake pedal free play is less than the specified value, then the

A.brake drags

Que. The purpose of turning radius gauges is to measure the

A .turning radius of the left and right wheels

Que. The three basic cylinder arrangements for automotive engines are

A .in line, V, and opposed

Que. When the battery is half (50%) charged, the specific gravity of acid in a battery is usually

A .1.19

Que. The specific gravity of Diesel is about

A .0.85

 Que. The service brakes employed in cars are generally operated

A .hydraulically

Que. The painting of automobiles is done to

A.prevent rust from growing on the body

B.improve its external appearance

C.retain the characteristics of steel for long

D.all of these

Que. The main task of a battery in automobiles is to

A .supply a large amount of power to turn the starter motor when the engine is being started

Que . The major purpose of an electronically-controlled automatic transmission is that this type of transmission

   A.  reduces shift shock and achieves more efficient transmission of engine torque

Que. The connecting rods are generally made of

A. I shaped crosssection.

Que. The anti-knock property of compression ignition engine fuel can be improved by adding

A .amyl nitrate

Que. The function of a radiator fan in the cooling system is that

A.it blows air through the radiator when necessary

Que. The main function of an exhaust muffler is the

A .reduction of exhaust noise

Que. The characteristic that is enhanced by the honing of cylinder sleeves inner surface is

A .lubrication performance

Que. Instead of valves, the ports are used in case of

A .two-stroke I.C. engines

Que. The starting system includes

   A.  a battery, a starter, and an ignition switch

Que. Incorrect steering axis inclination (S.A.I.) causes

A .poor recovery of the steering wheel after making a turn

Que. In a unit type body (frameless body) design, the sheet metal parts are welded together, forming a frame work to which outer skin is attached.

   A.  True

Que. The torque available at the contact between driving wheels and road is known as

A .tractive effort

Que. A traction control system (TCS) in automobiles controls the

A .torque that is transmitted by the tyres to the road surface

Que. In radial tyres

A .all plies run parallel to one another and vertical to tyre bead

Que. The main function of the brake fluid is

A .power transmission

Que. The parking brakes employed in vehicles are operated

   A.  mechanically

Que. The function of a carburetor is to control the amount and ratio of airfuel mixture.

A.True

Que. The component in the radiator of an automobile that increases the boiling point of water is

A .pressure cap

Que. In vehicles with tilt steering, the steering column is pivoted in

A .lower bracket

Que. Tachometer in a vehicle measures

   A.  engine r.p.m.

Que. One effect of detonation is

A .loss of power                

Que. The temperature indicating instrument in vehicles indicates the temperature of

A.jacket cooling water

Que. The ignition coil is used to

A  .step up voltage

Que. The process of removing the burnt gases from the engine cylinder by the fresh charge coming into the engine cylinder from the crank-case, is known as

A .scavenging

Que. The self-ignition temperature of Diesel as compared to petrol is

A .lower

Que. With the increase of battery temperature, the specific gravity of electrolyte

A .decreases

Que. The process of supplying the intake air to the engine cylinder at a pressure greater than the pressure of the surrounding atmosphere is known as

   A.  supercharging

Que. In aluminum cylinder blocks, the cylinder liners are made of

A .cast iron

Que. The purpose of a balancer shaft is to

A .reduce vibrations caused by the crankshaft rotation

Que. Free pedal play in car clutches is about

A .25 mm 49

Que. The caster is called positive when the top of the king pin is inclined to the

A. rear of the vehicle

Que. The main purpose of an engine's air cleaner is that it

A .prevents dust and other foreign matter from entering the engine

Que.  The device for smoothening out the power impulses from the engine is called

A .flywheel

Que. The main function of a master cylinder is to

A .convert brake pedal force into hydraulic pressure

Que . The exhaust gas from petrol engine contains

A .petrol vapours

B .water vapours

C .carbon monoxide

D. all of these

Que. In case of a Diesel car, the pressure at the end of compression is of the order of

A .45 bar

Que. The effect of vapour locking on the brake performance is that the

A .brakes fail completely

Que. The connecting rod is attached to the piston by the

A .piston pin

Que. Clutch facings are usually attached to the plate by

A .brass rivets

Que. The torque converter uses __________ to transfer torque.

A .automatic transmission fluid (ATF)

Que. In a Diesel engine, the function of a fuel injector is to

A .spray atomized fuel in the cylinder

Que. The firing order for an opposed four cylinder l.C. engine is

A .1-4-3-2

Que. The function of positive crankcase ventilation (PCV) system is that it

A .returns blow-by gases from the crankcase to the intake system

Que. The two kinds of piston rings are

A .compression and oil-control rings

Que. The maximum torque multiplication ratio in a torque converter is about

A.2.5

Que. The sequence in which the force is transmitted through a brake system when the brake pedal is depressed is

A .brake pedal vacuum servo mechanism master cylinder brake lines brake pads

Que. The composition of the electrolyte in a fully charged battery is that

A .the electrolyte is a mixture of 64% distilled water and 36% sulphuric acid by weight

Que. The basic purpose of a four wheel drive (4WD) system is that it

A .ensures effective transmission of engine torque to all four wheels, even on slippery road surfaces

Que. The heat transfer from coolant to air in the radiator of an automobile engine takes place by

A .convection and radiation

Que. The purpose of a thermostat in an engine cooling system is to

A .allow the engine to warm up quickly

Que. The basic characteristics of a brake fluid is

A .a high boiling point

 B .low viscosity

 C .compatibility with rubber and metal parts

 D.all of these

Que. The petrol engine works on

A .Otto cycle

Que. The reconditioning process used to give cylinder bore surfaces a crosshatch pattern, is known as

A. honing  

Que. The frequency of flashing of light per minute in a direction (side turn) indicator is about

A .90

Que. Thinner is added to the paint in order to

A .optimise its viscosity

Que. The ease with which petrol vaporizes is called its

A .volatility

Que. A four-cylinder engine has a capacity of 2.4 litres. The swept volume of one cylinder is

A .600 cm3

Que. An imbalance wheel during vehicle operation

A .bounces vertically or deflects from side to side (as seen from front or rear)  

Que. The included angle is the sum of the

A .camber and S.A.I.

Que. Which of the following parameter can be adjusted by modifying the tie rod attachment length ?

A .Toe

Que. The main feature of MacPherson strut suspension is that

A .non-vertical external forces are supported by the suspension arms

Que. The lubrication oil flow in an engine is in the order as

A.oil strainer- oil pump - relief valve - oil filter - cylinder block cylinder head - oil pan

Que. A three way catalytic converter

A .removes CO, HC, and NO2 from the exhaust gasses passing through it

Que. The valve overlap in four stroke petrol engines is approximately

A.30°

Que .The petrol engines are also known as

   A.  spark ignition (S.I.) engines

Que. Which of the following indicates a multigrade oil ?

A .SAE 20 W-50

Que. The coefficient of friction for the clutch facing is approximately

A .0.4

Que. The component that connects the steering rack to the knuckles is

A .tierod

Que. If the engine coolant leaks into the engine oil, then engine oil

A .appears milky

Que. The function of an alternator in an automobile is to

A .continually recharge the battery

Que. A clutch is usually designed to transmit maximum torque which is

A .150 per cent of the maximum engine torque

Que. What type of bearing is used for main bearings and connecting rod bearings ?

A .Plain bearings

Que. It is necessary to maintain the valve clearances as they

A .allow for lengthening of the valves owing to the heat of combustion

Que. The calorific value of petrol is about

C.42.7 - 43.5 MJ/kg

Que. The ball joints are used on the tierod ends, because they

A .can deal with movement of the suspension both vertically and in other directions

Que. The air resistance to a car at 20 kmph is R. The air resistance at 40 kmph will be

A .4R

Que. The size of engine cylinder is referred in terms of its

A .bore and stroke

Que. The purpose of a cylinder head gasket is to

A.prevent the combustion gases from leaking from the joint between the cylinder block and the cylinder head

Que. The function of a first compression ring (top ring) is that it

A .maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber

Que. The number of exhaust manifolds in a V-6 engine are

A .two

Que. The function of antilock brake system (ABS) is that is

A .maintains directional control during braking by preventing the wheels from locking.

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