Automobile Engineering Objective Questions with Answers - Set 18

Practice Test: Question Set - 18

1. The lower cylindrical portion of the piston which improves piston cooling performance is called
    (A) Piston crown
    (B) Connecting rod
    (C) Piston pin boss
    (D) Piston skirt

2. The most effective method of controlling S.I. engine exhaust emission is by
    (A) Recirculating exhaust
    (B) Using catalytic converter
    (C) Using some additives in the fuel
    (D) None of these

3. If clearance volume of I.C. engines is increased, the compression ratio will
    (A) Increase
    (B) Decrease
    (C) Remain constant
    (D) Be doubled

4. 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

5. Damper in an automobile is used to
    (A) Absorb the energy
    (B) Dissipate the energy
    (C) Release the energy
    (D) Increase the energy

6. The engine oil is stored in _________ when the engine is not running.
    (A) Oil pan
    (B) Cylinder head
    (C) Oil pump
    (D) Separate oil tank

7. The condition that results in large quantities of CO emission is
    (A) Insufficient air during combustion
    (B) Insufficient fuel during combustion
    (C) Low temperature combustion
    (D) High temperature combustion

8. The sequence order of events in a four stroke engine is
    (A) Suction exhaust power compression
    (B) Suction power compression exhaust
    (C) Suction compression power exhaust
    (D) Exhaust compression power suction

9. Which of the following is not a part of the chassis?
    (A) Wheels
    (B) Front axle
    (C) Steering system
    (D) Seats

10. The camshaft of a four stroke Diesel engine running at 1000 rpm will run at
    (A) 500 rpm
    (B) 1000 rpm
    (C) 2000 rpm
    (D) 4000 rpm

11. What type of bearing is used for main bearings and connecting rod bearings?
    (A) Ball bearings
    (B) Plain bearings
    (C) Needle roller bearing
    (D) Taper roller bearing

12. Valve overlap is the number of degrees of camshaft rotation during which
    (A) Both valves are closed
    (B) Both valves are open
    (C) Both 'A' and 'B'
    (D) None of these

13. The component that is responsible for converting the rotation of the steering wheel into lateral motion is the
    (A) Steering wheel
    (B) Steering shaft
    (C) Steering gearbox
    (D) Tie rod

14. The crankcase dilution means
    (A) Dilution of fuel in the crankcase
    (B) Dilution of oil by water in the crankcase
    (C) Dilution of lubrication oil by fuel in the crankcase
    (D) Dilution of mixture passing through crankcase in two stroke engines

15. The main cause for the change in engine oil viscosity is
    (A) Humidity
    (B) Temperature
    (C) Vibration
    (D) Contamination

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Automobile Engineering:
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