Automobile Engine MCQ Questions & Answers

11

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

A) 0.32 B) 0.032 C) 0.0032 D) 1.32

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Answer & Solution

Answer: Option C

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12

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

A) $$\eta = 1 - {1 \over {{R^{r - 1}}}}\left( {{{{\rho ^r} - 1} \over {r\left( {\rho - 1} \right)}}} \right)$$ B) $$\eta = 1 - {1 \over {{R^{r - 1}}}}$$ C) $$\eta = 1 - {1 \over {{R^{r - 1}}}}\left( {{{r\left( {\rho - 1} \right)} \over {{\rho ^r} - 1}}} \right)$$ D) None of the above

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Answer & Solution

Answer: Option A

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13

The electrolyte used in a lead acid battery is

A) Hydrochloric acid B) Sulphuric acid C) Nitric acid D) Lead peroxide

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Answer: Option B

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14

Choose the correct statement with regard to the bearing crush.

A) The bearing is plated with an alloy to ensure good embeddability B) Each half of a split bearing is made slightly smaller than an exact half C) Each half of the spilt bearing is made slightly larger than an exact half D) One of the two bearing halves is made slightly larger than an exact half

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Answer & Solution

Answer: Option C

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15

A pulse genetator consists of a

A) Permancent magnet, ignition coil and electronic control unit B) Permanent magnet, reluctor and electronic control unit C) Ignition coil, reluctor and electronic control unit D) Permmanent magnet, reluctor and timer coil

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Answer & Solution

Answer: Option D

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16

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

A) Slip angle B) Castor angle C) Camber D) Kingpin inclination

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Answer & Solution

Answer: Option A

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17

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

A) Master cylinder B) Push rod C) Wheel cylinder D) Brake pedal

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Answer & Solution

Answer: Option C

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18

In a diesel engine
1. Fuel injection pump is used
2. Fuel injection pump and carburettor is used
3. Fuel injector is used
4. Neither fuel injection pump nor injector is used

A) 1 is alone is true B) 3 is alone is true C) 1 and 3 both are true D) 1, 2, 3, 4 all are true

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Answer & Solution

Answer: Option C

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19

The function of anti-lock brake system (ABS) is that is

A) Reduces the stopping distance B) Minimizes the brake fade C) Maintains directional control during braking by preventing the wheels from locking D) Prevents nose dives during braking and thereby postpones Iocking of the Wheels

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Answer & Solution

Answer: Option C

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20

In a four-stroke four cylinder diesel engine, number of carburettors used is

A) 0 B) 1 C) 2 D) 4

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Answer & Solution

Answer: Option A

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Automobile Engine MCQ Questions & Answers | Automobile Engineering