Automobile Engineering MCQs

Question 1

The service brakes employed in cars are generally operated

Accepted Answer

Hydraulically

Answer

Mechanically

Answer

Pneumatically

Answer

None of these

Question 2

A front stabilizer bar is used to

Accepted Answer

Control suspension movement and body roll

Answer

Increase vehicle load carrying capacity

Answer

Provide a softer ride

Answer

All of the above

Question 3

The aluminium alloy is used in cylinder blocks because

Accepted Answer

It is lighter and has good heat dissipation characteristics

Answer

Material cost is low

Answer

It does not require any cylinder liners

Answer

The piston is also made of aluminium alloy

Question 4

The main function of a master cylinder is to

Accepted Answer

Convert brake pedal force into hydraulic pressure

Answer

Adjust the extent of brake pedal free play

Answer

Boost the force applied to brake pedal

Answer

Ensure that all the wheel brakes are supplied with the same amount of fluid pressure

Question 5

The firing order for an inline four cylinder I.C. engine is

Accepted Answer

1-3-4-2

Answer

1-2-3-4

Answer

1-2-4-3

Answer

1-3-2-4

Question 6

The firing order for an opposed four cylinder l.C. engine is

Accepted Answer

1-4-3-2

Answer

1-2-3-4

Answer

1-3-4-2

Answer

1-3-2-4

Question 7

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)

Accepted Answer

$$\frac{{{	ext{P}}{	ext{.L}}{	ext{.A}}{	ext{.N}}{	ext{.}}}}{2}$$

Answer

P.L.A.N.

Answer

2 × P.L.A.N.

Answer

$$\frac{{{	ext{P}}{	ext{.L}}{	ext{.A}}{	ext{.N}}{	ext{.}}}}{4}$$

Question 8

The rating of C.I. engine fuel (Diesel) is given by

Accepted Answer

Cetane number

Answer

Octane number

Answer

Performance number

Answer

None of these

Question 9

The capacity of a battery is usually expressed in terms of

Accepted Answer

Ampere hours

Answer

Volts

Answer

Amperes

Answer

Weight