Chapter 8 · MCQ Read Mode

Fundamentals of Automobiles

The first practical petrol-engined motor car was built by:

Mass production of cars using a moving assembly line was introduced by:

The distance between the centres of the front and rear axles is called the:

A vehicle designated 6×4 has:

The frame most commonly used in trucks and buses is the:

In a monocoque (integral) construction:

The frame side members are usually swept up (kicked up) at the rear to:

The frame section most commonly used for side members of a ladder frame is the:

A major advantage of front-wheel drive in small cars is:

The unit that provides a low-range gear and divides power between front and rear axles in a 4WD vehicle is the:

Gross vehicle weight (GVW) is equal to:

The first self-propelled road vehicle (1769) was powered by:

In Nepal, vehicles are right-hand drive because traffic:

The function of a clutch in an automobile is to:

A clutch slips mainly when:

Clutch drag (difficulty in gear engagement) is often caused by:

A fluid coupling differs from a torque converter because it:

In a synchromesh gearbox, the gears are brought to the same speed before engagement by:

In a constant-mesh gearbox, the gears are engaged by:

In a simple epicyclic gear train, direct drive (1 : 1) is obtained by:

In a dual-clutch transmission (DCT), one clutch serves the odd gears and the other serves:

A CVT changes its ratio by:

An overdrive gives:

The speed fluctuation of a single Hooke's joint occurs:

A slip joint in the propeller shaft is provided to:

The main advantage of a hypoid final drive is that it:

If one driving wheel of a vehicle with an open differential is jacked up and turns while the other is held, the lifted wheel turns at:

The main function of a shock absorber is to:

Which of the following is part of the unsprung mass of a vehicle?

The most common front suspension of modern passenger cars is the:

The anti-roll (stabiliser) bar in a suspension reduces:

The steering gearbox most commonly used in passenger cars is:

The condition for correct steering (Ackermann) is:

The steering-geometry angle mainly responsible for directional stability and self-centring is:

Excessive positive camber results in wear of the tyre on its:

Wrong toe setting produces tyre wear of the:

Wheel shimmy (side-to-side oscillation of the front wheels) is mainly caused by:

In the tyre marking 195/65 R15, the number 65 represents the:

Compared with cross-ply tyres, radial tyres give:

An under-inflated tyre wears mostly on its:

Wheel nuts should be tightened in a:

A car moving at 20 m/s has a driver reaction time of 1 s and brakes with μ = 0.8 (g = 10 m/s²). The stopping distance is:

If the speed of a vehicle is doubled, its braking distance becomes:

Hydraulic brakes work on the principle of:

A tandem master cylinder is used to:

Air brakes are mainly used in:

In air brakes, the brake shoes are expanded by a/an:

A vacuum brake booster obtains its assistance from:

Disc brakes are superior to drum brakes mainly because they:

Brake fade is caused by:

Bleeding of hydraulic brakes is done to:

Brake fluid must be replaced periodically because it is:

The main purpose of ABS is to:

The ABS ECU detects impending wheel lock using signals from the:

Most automobiles use an electrical system of:

A relay is used in automobile circuits to:

The starter motor of an automobile is generally a:

The device that prevents the engine from driving the starter motor after the engine starts in a pre-engaged starter is the:

In a Bendix drive, the pinion engages the flywheel ring gear due to:

In an automobile alternator, AC is converted to DC by:

In an alternator, the field winding is on the:

A major advantage of the alternator over the DC dynamo is that it:

The regulated charging voltage of a 12 V automotive system is about:

Clicking of the starter solenoid without cranking usually indicates:

A fuel-level sender unit usually consists of a:

An engine immobiliser prevents theft by:

An airbag is fully inflated after a crash is detected in about:

A vehicle of 10 000 N weight has a rolling-resistance coefficient of 0.015. The rolling resistance is:

The rotation of a vehicle about its vertical axis is called:

The maximum tractive effort that can be transmitted by the driving wheels is limited by:

During acceleration, weight is transferred:

A vehicle of mass 1000 kg decelerates at 6 m/s² with CG height 0.5 m and wheelbase 2.5 m. The load transferred to the front axle is:

The tyre moment that tends to return the steered wheel to the straight-ahead position is the:

The maximum longitudinal braking force of a tyre occurs at a wheel slip of about:

A vehicle that needs more steering angle as speed increases on a constant-radius curve is said to:

Locking of the rear wheels during braking is dangerous because:

To make a vehicle skid rather than overturn on a curve, it is desirable that:

For good ride comfort, the natural frequency of the sprung mass should be about:

The major part of aerodynamic drag of a car is:

For a road banked so that no side friction is needed, the banking angle is given by: