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Current Affairs January 2024

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4

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

A. The six planetary pinions rotate in constant mesh with the internal gears.

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

C. Each planetary pinion gear meshes with both the central gear and the internal gear.

D. The internal gear is fixed to the planetary gear.

Correct Answer :

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


Related Questions

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4

The octane number of compressed natural gas (CNG) is

A. 90

B. 100

C. 110

D. 120

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4

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

A. Wheel piston or cylinder

B. Anchor pin

C. Brake drum

D. Wheel rim or axle

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4

An imbalance wheel during vehicle operation

A. Makes large noise when its heavy point hits the road surface

B. Deflects in the vehicle's longitudinal direction

C. Bounces vertically or deflects from side to side (as seen from front or rear)

D. Creates a standing wave

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4

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

A. 0.74

B. 1.00

C. 1.12

D. 1.19

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4

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

B. Enhances safety by activating the brakes using vacuum pressure in the event of brake fluid loss

C. Supplies equal fluid pressure to each line of a divided line brake circuit, thereby preventing the brakes from dragging on one side

D. Boosts the brake fluid pressure to reduce the force required to depress the brake pedal

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4

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

A. Increase

B. Decrease

C. Remain constant

D. Be doubled

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4

Wheel base of a vehicle is the

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

B. Distance between the centres of the front tyres

C. Distance between the centres of the rear tyres

D. Extreme length of the vehicle

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4

The seat belt tensioners are built in the

A. Front seats

B. Shoulder anchors

C. Seat belt retractors

D. Seat belt buckles

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4

The purpose of a balancer shaft is to

A. Balance the timing in the movement of the two groups of pistons

B. Increase inertia force of the rotating crankshaft

C. Reduce vibrations caused by the crankshaft rotation

D. Adjusts the timing of the intake and exhaust valve openings

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4

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

A. Controls the engine's air intake volume

B. Reduces the engine's air intake noise

C. Prevents rain water from entering the engine

D. Prevents dust and other foreign matter from entering the engine

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4

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

A. The electrolyte is pure distilled water

B. The electrolyte is pure sulphuric acid

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

D. The electrolyte is a mixture of 90% distilled water and 10% sulphuric acid by weight

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4

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

A. Belt driven by camshaft

B. Chain driven by crankshaft

C. Belt driven by driveshaft

D. Belt driven by crankshaft

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4

The basic purpose of tyres is to

A. Grip the road and provide good traction

B. Substitute for springs

C. Act as brake

D. None of these

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4

The main feature of Macpherson strut suspension is that

A. The vertical size of the suspension can be made more compact

B. Non vertical external forces are supported by the suspension arms

C. The unsprung mass in lighter

D. The assembly is slightly more complicated in design

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4

In radial tyres

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

B. All plies run parallel to one another and vertical to tyre bead

C. Inner tubes are always used

D. None of these

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4

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

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4

The valve tappet clearance is measured by

A. Screw pitch gauge

B. Engineering scale

C. Feeler gauge

D. Vernier caliper

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4

The compression ratio of a petrol engine is nearly

A. 4 : 1

B. 8 : 1

C. 15 : 1

D. 20 : 1

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4

The cam shaft in an engine is always mounted

A. Parallel to the crankshaft

B. Perpendicular to the crankshaft

C. Inclined to the crankshaft

D. None of these

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4

It is necessary to maintain the valve clearances as they

A. Reduce the resistance to sliding that occurs between the cam and the tappet

B. Allow for lengthening of the valves owing to the heat of combustion

C. Increase the speed at which the valves move up and down

D. Make the crankshaft turn smoothly

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4

When the front wheels of a vehicle are locked during braking, then

A. Stopping distance becomes extremely long

B. Front tyres skid across the road surface, and the vehicle spins around

C. Rear tyres skid across the road surface, and the vehicle spins around

D. Driver loses control over the steering, and the vehicle continues moving in its current direction

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4

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

B. Prevent engine oil from going into combustion chamber

C. Removes impurities from cylinder head lubricating oil

D. None of the above

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4

The number of exhaust manifolds in a V6 engine is

A. One

B. Two

C. Four

D. Eight

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4

In order to implement gear changes in the gear unit of an automatic transmission, a ________ is used.

A. Synchronizer

B. Planetary gear

C. Magnetic clutch

D. Hydraulic multi plate clutch

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4

The three basic cylinder arrangements for automotive engines are

A. Flat, radial, and V

B. In a row, in line, and opposed

C. In line, V, and opposed

D. V, double row, and opposed

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4

The order in which effort applied to the steering wheel is transferred to the front wheel is

A. Steering wheel, steering gearbox, steering shaft, tie rod, steering knuckle, front wheels

B. Steering wheel, steering shaft, steering gearbox, tie rod, steering knuckle, front wheels

C. Steering wheel, steering shaft, steering gearbox, steering knuckle, tie rod, front wheels

D. Steering wheel, tie rod, steering gearbox, steering shaft, steering knuckle, front wheels

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4

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

A. Rear of the vehicle

B. Front of the vehicle

C. Left of the vehicle

D. Right of the vehicle

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4

The main cause for the change in engine oil viscosity is

A. Humidity

B. Temperature

C. Vibration

D. Contamination

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4

The brake warning light warns the driver of

A. Water in the master cylinder

B. Air in the hydraulic system

C. Failure of the primary or secondary circuit of hydraulic system

D. Power brake failure

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4

The rigid suspension is beneficial when

A. It is desired to reduce the unsprung mass

B. It is desired to have more flexibility in design

C. It is desired to improve tyre to ground contact characteristics

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