In comparison with a radial tyre, one advantage of a bias ply tyre is
Longer life
Lower rolling resistance
Smoother ride at low speeds
None of these
Correct Answer :
C. Smoother ride at low speeds
Related Questions
The coefficient of rolling resistance for a truck weighing 63,500 N is 0.018. The rolling resistance to the truck is
1.143 N
11.43 N
114.3 N
1143 N
Which of the following indicates multigrade oil?
SAE 30
API SF
SAE 20 W50
API 50
A clutch is usually designed to transmit maximum torque which is
Equal to the maximum engine torque
80 % of the maximum engine torque
150 % of the maximum engine torque
None of these
The power actually developed inside the engine cylinder is called as
Indicated power
Brake power
Frictional power
None of these
The oil pump is driven by the
Camshaft
Alternator shaft
Crankshaft via drive belt
Crankshaft directly
The crankshaft of a typical inline four cylinder engine has ________ balance weights.
12
4
16
8
The Diesel engine works on
Otto cycle
Carnot cycle
Diesel cycle
Rankine cycle
The lower cylindrical portion of the piston which improves piston cooling performance is called
Piston crown
Connecting rod
Piston pin boss
Piston skirt
The driveshafts are connected to the differential and wheel hubs through universal joints because the universal joints
Absorb the vibrations transferred from the surface of the road
Compensate for variations in the relative positions of the differential and the wheels which result from bumpy road surfaces or other similar driving conditions.
Absorb any difference in speed between the left and right wheels when the vehicle is turning
None of the above
The major purpose of an electronically controlled automatic transmission is that this type of transmission
Eliminates gear clutches
Eliminates the gear shaft lever
Reduces the number of automatic transmission components
Reduces shift shock and achieves more efficient transmission of engine torque
The order in which effort applied to the steering wheel is transferred to the front wheel is
Steering wheel, steering gearbox, steering shaft, tie rod, steering knuckle, front wheels
Steering wheel, steering shaft, steering gearbox, tie rod, steering knuckle, front wheels
Steering wheel, steering shaft, steering gearbox, steering knuckle, tie rod, front wheels
Steering wheel, tie rod, steering gearbox, steering shaft, steering knuckle, front wheels
The function of a second ring is that it is a
Back up compression ring which will work in place of the top ring when it is broken
Compression ring and aids the top ring in sealing and cooling
Back up oil control ring which will work in place of the bottom ring when it is broken
Cushion ring which prevents piston slap and knock
The exhaust gas from petrol engine contains
Petrol vapours
Water vapours
Carbon monoxide
All of these
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 a ventilated disc brake
A duct directs air towards the caliper for cooling while the vehicle is moving
Caliper is covered with cooling fins
Disc contains many small holes for optimum cooling performance
Disc contains radial vanes between its rubbing surfaces for optimum cooling performance
Clutch facings are usually attached to the plate by
Steel rivets
Brass rivets
Aluminium screws
Steel screws
Damper is also known as
Shock absorber
Torsion bar
Spring
Radius rod
Engine misfiring is likely to result from
Spark plug gap too small
Spark plug gap too wide
Vapours lock in the fuel only
Incorrect fuel air mixture
A front stabilizer bar is used to
Increase vehicle load carrying capacity
Provide a softer ride
Control suspension movement and body roll
All of the above
The function of antilock brake system (ABS) is that is
Reduces the stopping distance
Minimises the brake fade
Maintains directional control during braking by preventing the wheels from locking
Prevents nose dives during braking and thereby postpones locking of the wheels
The operation of removing trapped air from the hydraulic braking system is known as
Trapping
Tapping
Bleeding
Cleaning
An oil filter bypass valve opens when the
Engine is cold
Engine overheats
Oil filter becomes clogged
Engine runs at high speed
The most commonly used supplementary restraint system (SRS) component is
Seat belt
Brake
Airbag
Steering
What type of bearing is used for main bearings and connecting rod bearings?
Ball bearings
Plain bearings
Needle roller bearing
Taper roller bearing
The cetane rating of Diesel fuel is in the order of
25
45
70
90
If a tyre is designated as 175/65 R-14 82-S, then the aspect ratio for the tyre is
175
65
14
82
The function of an alternator in an automobile is to
Supply electric power
Converts mechanical energy into electrical energy
Continually recharges the battery
Partly converts engine power into electric power
The rating of C.I. engine fuel (Diesel) is given by
Octane number
Performance number
Cetane number
None of these
The crankcase dilution means
Dilution of fuel in the crankcase
Dilution of oil by water in the crankcase
Dilution of lubrication oil by fuel in the crankcase
Dilution of mixture passing through crankcase in two stroke engines
One effect of detonation is
Delay in ignition
Loss of power
Overheating of engine
Overcooling of engine