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Current Affairs January 2024

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4

Two speed reverse gear arrangements is generally provided in case of

A. Passenger cars

B. Matadors

C. Tractors

D. Trucks

Correct Answer :

C. Tractors


Related Questions

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4

In bias ply tyres

A. All plies run parallel to one another

B. Belts of steel mesh are used in the tyres

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

D. All of the above

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4

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

A. Exactly at the T.D.C. position on its compression stroke

B. Approaching the T.D.C. position on its compression stroke

C. Leaving the T.D.C. position on its compression stroke

D. Approaching the T.D.C position on its exhaust stroke

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4

The positive plates of a lead acid battery has

A. Lead peroxide (PbO₂)

B. Spongy lead (Pb)

C. Lead sulphate (PbSO₄)

D. Sulphuric acid (H₂SO₄)

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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 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

B. Auto ignition

C. Scavenging

D. Detonation

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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.

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4

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

A. Moves the synchronizer

B. Selects the synchronizer

C. Meshes the gears

D. Operates the clutch

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4

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

A. Upper bracket

B. Lower bracket

C. Tilt bracket

D. Steering yoke joint

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4

In petrol engines, during suction stroke, ________ is drawn in the cylinder

A. Air and fuel

B. Only fuel

C. Only air

D. None of these

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4

The problems caused by the wheel imbalance are

A. Hard steering and hard ride

B. Poor acceleration and hard steering

C. Steering wheel vibrations and uneven tyre wear

D. Poor acceleration and reduced fuel efficiency

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4

For the same maximum pressure and temperature

A. Diesel cycle is more efficient than Otto cycle

B. Otto cycle is more efficient than Diesel cycle

C. Both Otto cycle and Diesel cycle are equally efficient

D. None of the above

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4

The most accurate ignition system of a spark ignition engine is

A. Magneto system

B. Battery system

C. Electronic control unit system

D. Magneto and electronic system

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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 size of engine cylinder is referred in terms of its

A. Diameter and bore

B. Displacement and efficiency

C. Bore and stroke

D. Bore and length

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4

The connecting rod connects the piston and the

A. Cylinder head

B. Cylinder block

C. Camshaft

D. Crankshaft

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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

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4

A battery can be charged by

A. Adding distilled water

B. Adding sulphuric acid

C. Applying voltage in the reverse direction to that of charging

D. Applying a voltage in the same direction to that of charging

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4

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

A. Cylinder head

B. Crankshaft

C. Cylinder block

D. Oil pan

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4

A front stabilizer bar is used to

A. Increase vehicle load carrying capacity

B. Provide a softer ride

C. Control suspension movement and body roll

D. All of the above

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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 indicated power of a four stroke engine (in watts) is equal to (where P = Mean effective pressure in N/m², L = Length of stroke in metres, A = Cross-sectional area of the piston in m², and N = Speed of the engine in revolutions per second (r.p.s)

A. P.L.A.N/2

B. P.L.A.N

C. 2 × P.L.A.N

D. P.L.A.N/4

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4

The exhaust gas from petrol engine contains

A. Petrol vapours

B. Water vapours

C. Carbon monoxide

D. All of these

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4

During suction stroke, the inside pressure of cylinder is

A. More than the atmospheric pressure

B. Less than the atmospheric pressure

C. Equal to the atmospheric pressure

D. None of these

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4

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

A. Brake power

B. Compression ratio

C. Specific air consumption

D. Mean effective pressure

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4

In automobiles G.V.W. refers to

A. Gross vehicle width

B. Gross vehicle weight

C. Gross vehicle wheel base

D. Gross vehicle wheel track

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4

The Diesel engine works on

A. Otto cycle

B. Carnot cycle

C. Diesel cycle

D. Rankine cycle

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4

In a ventilated disc brake

A. A duct directs air towards the caliper for cooling while the vehicle is moving

B. Caliper is covered with cooling fins

C. Disc contains many small holes for optimum cooling performance

D. Disc contains radial vanes between its rubbing surfaces for optimum cooling performance

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4

The maximum torque multiplication ratio in a torque converter is about

A. 2.5

B. 10

C. 25

D. 40

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4

A maintenance free battery

A. Has lead-antimony plate grid

B. Has lead-calcium plate grid

C. Does not contain acid

D. Does not contain water

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4

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

A. Engine can run

B. Engine gives maximum output

C. Engine is most efficient

D. Fuel can be used in a test engine without knocking