The valve tappet clearance is measured by
Screw pitch gauge
Engineering scale
Feeler gauge
Vernier caliper
Correct Answer :
C. Feeler gauge
Related Questions
The oil pump is driven by the
Camshaft
Alternator shaft
Crankshaft via drive belt
Crankshaft directly
A petrol engine of a car develops 125 Nm torque at 2700 r.p.m. The car is driven in second gear having gear ratio of 1.75. The final drive ratio is 4.11. If the overall transmission efficiency is 90%, then the torque available at the driving wheels is
8.091 Nm
80.91 Nm
809.1 Nm
8091 Nm
The function of a proportioning control valve (PCV) in a brake system is to
Ensure that equal pressure is supplied to the front and rear brakes throughout every braking operation
Reduce the brake fluid pressure when the brakes approach their lockup point
Cause less brake fluid pressure to act on the front brakes than on the rear brakes when the fluid pressure exceeds a predetermined level
Cause less brake fluid pressure to act on the rear brakes than on the front brakes when the fluid pressure exceeds a predetermined level.
The octane number of compressed natural gas (CNG) is
90
100
110
120
The vehicle ride will be comfortable if
Unsprung mass is kept minimum
Sprang mass is kept minimum
Vehicle mass is kept minimum
All of these
The condition that results in large quantities of HC emission is
High temperature combustion
Incomplete combustion
Low temperature combustion
High atmospheric temperature combustion
The minimum parking brake force is generally ________ of gross vehicle mass (GVM).
5 %
10 %
15 %
20 %
In radial tyres
One ply layer runs diagonally one way and another layer runs diagonally the other way
All plies run parallel to one another and vertical to tyre bead
Inner tubes are always used
None of these
In a four wheel drive (4WD), the numbers of gear boxes are
1
2
3
4
The damper fluid leakage typically occur from
Upper damper mounting
Bottom of damper
Clearance between inner and outer tubes of damper
Coil spring mounting
The parking brakes employed in vehicles are operated
Mechanically
Hydraulically
Pneumatically
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
The ball joints are used on the tie rod ends, because they
Reduce the amount of noise generated
Reduce the amount of sliding resistance
Can deal with movement of the suspension both vertically and in other directions
Improve the force transmission speed
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 valve overlap in four stroke petrol engines is approximately
30°
60°
90°
120°
The frequency of flashing of light per minute in a direction (side turn) indicator is about
9
90
900
9000
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 acid used in automobile battery is
Hydrochloric acid
Hydrofluoric acid
Nitric acid
Sulphuric acid
If the engine coolant leaks into the engine oil, then engine oil
Appears milky
Become foamy
Turns black
None of these
The caster is called positive when the top of the king pin is inclined to the
Rear of the vehicle
Front of the vehicle
Left of the vehicle
Right of the vehicle
In a hydraulic power steering system, the power steering pump is driven by a
Belt driven by camshaft
Chain driven by crankshaft
Belt driven by driveshaft
Belt driven by crankshaft
The two kinds of piston rings are
Compression and oil control rings
Compression and sliding seal rings
Oil scrapper and oil control rings
Pressure and sealing rings
The basic purpose of tyres is to
Grip the road and provide good traction
Substitute for springs
Act as brake
None of these
The main function of intake manifold is that it
Promotes the mixture of air and fuel
Reduces intake noise
Cools the intake air to a suitable temperature
Distributes intake air equally to the cylinders
In a four speed four stroke Diesel engine, the intake valve
Opens at T.D.C. and closes at B.D.C.
Opens at 20° before T.D.C. and closes at 35° after B.D.C.
Opens at 10° after T.D.C. and closes at 20° before B.D.C.
None of the above
The air resistance to a car at 20 kmph is R. The air resistance at 40 kmph will be
R
2 R
4R
4 R²
The main function of the tread pattern on tyre is that
The tread grooves pass air between the tyre and road surface, thereby preventing tyre from overheating
The crests between the tread grooves absorb road noise
In wet conditions, the tread grooves expel water that is drawn between the tyre and road surface
The tread pattern protects the tyre's inner carcass from small stones and pieces of glass
If a tyre is designated as 175/65 R-14 82-S, then the aspect ratio for the tyre is
175
65
14
82
Odometer is an instrument used for measurement of
Power
Fuel consumption
Engine r.p.m.
Distance