Automobile Engine MCQs

Question 1

A mainternance free battery

Accepted Answer

Has lead caluium plate grid

Answer

Has lead antimony plate grid

Answer

Does not contain acid

Answer

Does not contain water

Question 2

If proportioning valve is not working

Accepted Answer

Front brakes may lock

Answer

Rear brakes may lock

Answer

Front brakes may drag

Answer

Rear brakes may drag

Question 3

The value of coefficient of air resistance for average cars is approximately equal to

Accepted Answer

0.0032

Answer

0.32

Answer

0.032

Answer

1.32

Question 4

The thermal efficiency of the ideal diesel cycle is given by equation where $$\rho $$ = Cut off ratio, R = Compression ratio

Accepted Answer

$$\eta = 1 - {1 \over {{R^{r - 1}}}}\left( {{{{\rho ^r} - 1} \over {r\left( {\rho - 1} \right)}}} \right)$$

Answer

$$\eta = 1 - {1 \over {{R^{r - 1}}}}$$

Answer

$$\eta = 1 - {1 \over {{R^{r - 1}}}}\left( {{{r\left( {\rho - 1} \right)} \over {{\rho ^r} - 1}}} \right)$$

Answer

None of the above

Question 5

The electrolyte used in a lead acid battery is

Accepted Answer

Sulphuric acid

Answer

Hydrochloric acid

Answer

Nitric acid

Answer

Lead peroxide

Question 6

Choose the correct statement with regard to the bearing crush.

Accepted Answer

Each half of the spilt bearing is made slightly larger than an exact half

Answer

The bearing is plated with an alloy to ensure good embeddability

Answer

Each half of a split bearing is made slightly smaller than an exact half

Answer

One of the two bearing halves is made slightly larger than an exact half

Question 7

A pulse genetator consists of a

Accepted Answer

Permmanent magnet, reluctor and timer coil

Answer

Permancent magnet, ignition coil and electronic control unit

Answer

Permanent magnet, reluctor and electronic control unit

Answer

Ignition coil, reluctor and electronic control unit

Question 8

What is the name of the angle through which the wheel has to turn to sustain the side force?

Accepted Answer

Slip angle

Answer

Castor angle

Answer

Camber

Answer

Kingpin inclination

Question 9

The part of hydraulic brake system which actuates brakes shoes directly:

Accepted Answer

Wheel cylinder

Answer

Master cylinder

Answer

Push rod

Answer

Brake pedal