Automobile Engineering problems
- 1. Two advantages of using helical gears rather than spur gears in a transmission system are
Options- A. strength and cost
- B. strength and less end thrust
- C. noise level and strength
- D. noise level and economy Discuss
Correct Answer: noise level and strength
- 2. The crescent-shaped cavity on the piston head top surface is called as
Options- A. piston oil hole
- B. snap ring
- C. valve recess
- D. valve clearance Discuss
Correct Answer: valve recess
- 3. The rating of C.I. engine fuel (Diesel) is given by
Options- A. octane number
- B. performance number
- C. cetane number
- D. none of these Discuss
Correct Answer: cetane number
- 4. The stroke of an engine is the
Options- A. volume of the cylinder
- B. length of the connecting rod
- C. internal diameter of the cylinder
- D. distance between T.D.C. and B.D.C. Discuss
Correct Answer: distance between T.D.C. and B.D.C.
- 5. The characteristic that is enhanced by the use of cylinder sleeves is
Options- A. cooling efficiency
- B. resistance to wear
- C. lubrication performance
- D. none of these Discuss
Correct Answer: resistance to wear
- 6. In a petrol engine, the high voltage for spark plug is in the order of
Options- A. 1000 volts
- B. 2000 volts
- C. 11 kilovolts
- D. 22 kilovolts Discuss
Correct Answer: 22 kilovolts
- 7. In bias ply tyres
Options- A. all plies run parallel to one another
- B. belts of steel mesh are used in the tyres
- C. one ply layer runs diagonally one way and another layer runs diagonally the other way
- D. all of the above Discuss
Correct Answer: one ply layer runs diagonally one way and another layer runs diagonally the other way
- 8. The function of antilock brake system (ABS) is that is
Options- A. reduces the stopping distance
- B. minimises the brake fade
- C. maintains directional control during braking by preventing the wheels from locking
- D. prevents nose dives during braking and thereby postpones locking of the wheels Discuss
Correct Answer: maintains directional control during braking by preventing the wheels from locking
- 9. The seat belt will move out smoothly when pulled out slowly, but it will lock when pulled quickly.
Options- A. Agree
- B. Disagree Discuss
Correct Answer: Agree
- 10. When the battery is half (50%) charged, the specific gravity of acid in a battery is usually
Options- A. 0.74
- B. 1.00
- C. 1.12
- D. 1.19 Discuss
Correct Answer: 1.19
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