Automobile Engineering MCQ Practice - Set 10

Are you guys looking for Mechanical Engineering MCQ Questions with Answers PDF Free Download as per Mechanical Engineering new exam pattern? You came to the right page. This may assist you to understand and check your knowledge about the Subjects. Students also can take a free test of the Multiple Choice Questions of Mechanical Engineering. Each question has four options followed by the right answer. These Mechanical Engineering MCQ Questions are selected supported by the newest exam pattern.

Q1. The valve tappet clearance is measured by

(A) Screw pitch gauge
(B) Engineering scale
(C) Feeler gauge
(D) Vernier caliper

Answer: (C) Feeler gauge

Q2. Tachometer in a vehicle measures

(A) Speed
(B) Distance
(C) Engine r.p.m.
(D) Fuel consumption

Answer: (C) Engine r.p.m.

Q3. The motion of the cam is transferred to the valves through

(A) Pistons
(B) Rocker arms
(C) Camshaft pulley
(D) Valve stems

Answer:(B) Rocker arms

Q4. In vehicles with tilt steering, the steering column is pivoted in

(A) Upper bracket
(B) Lower bracket
(C) Tilt bracket
(D) Steering yoke joint

Answer: (B) Lower bracket

Q5. The basic function of the suspension is to

(A) Absorbs vibration and impact forces from the road surface
(B) Ensure that the steering wheel can deliver a suitable amount of steering force
(C) Ensure that wheel alignment is not disturbed during driving
(D) Automatically correct the effects of over steering

Answer:(A) Absorbs vibration and impact forces from the road surface

Q6. In an engine, the temperature of the piston will be more at the

(A) Crown of the piston
(B) Skirt of the piston
(C) Piston walls
(D) Piston rings

Answer: (A) Crown of the piston

Q7. An under-inflated tyre will wear the tread most

(A) Near the centre
(B) Near the edges
(C) In the lateral direction
(D) In the cross direction

Answer: (B) Near the edges

Q8. When turning a corner

(A) The front wheels are toeing out
(B) The front wheels are turning on different angles
(C) The inside front wheels has a greater angle than the outside wheel
(D) All of the above

Answer: (D) All of the above

Q9. The power source for a brake booster is

(A) Exhaust manifold pressure
(B) Electricity
(C) The pressure difference between the atmospheric pressure and the vacuum pressure in the intake manifold
(D) Hydraulic pump

Answer: (C) The pressure difference between the atmospheric pressure and the vacuum pressure in the intake manifold

Q10. The specific gravity of petrol is about

(A) 0.75
(B) 0.85
(C) 0.95
(D) 1.25

Answer: (A) 0.75

Q11. The connecting rod lower end is connected to the relevant __ of crankshaft.

(A) Big end
(B) Crank arm
(C) Journal
(D) Small end

Answer: (C) Journal

Q12. The power actually developed inside the engine cylinder is called as

(A) Indicated power
(B) Brake power
(C) Frictional power
(D) None of these

Answer:(A) Indicated power

Q13. One effect of detonation is

(A) Delay in ignition
(B) Loss of power
(C) Overheating of engine
(D) Overcooling of engine

Answer: (B) Loss of power

Q14. Damper in an automobile is used to

(A) Absorb the energy
(B) Dissipate the energy
(C) Release the energy
(D) Increase the energy

Answer: (B) Dissipate the energy

Q15. The oil pump is driven by the

(A) Camshaft
(B) Alternator shaft
(C) Crankshaft via drive belt
(D) Crankshaft directly

Answer: (D) Crankshaft directly

Q16. 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

Answer: (A) Prevent the combustion gases from leaking from the joint between the cylinder block and the cylinder head

Q17. The rolling resistance is because of the friction between the

(A) Wheel rim and tyre
(B) Tyre and the road surface
(C) Wheel rim and road surface
(D) None of these

Answer: (B) Tyre and the road surface

Q18. The Diesel engines are also known as

(A) Spark ignition (S.I.) engines
(B) Compression ignition (C.I.) engines
(C) Steam engines
(D) None of these

Answer: (B) Compression ignition (C.I.) engines

Q19. The octane number of compressed natural gas (CNG) is

(A) 90
(B) 100
(C) 110
(D) 120

Answer: (D) 120

Q20. The brake pedal during ABS operation

(A) Is pushed upward forcefully
(B) Pedal stroke becomes longer
(C) Transmits slight kickback to the driver’s foot
(D) All of the above

Answer: (C) Transmits slight kickback to the driver’s foot

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