Automobile Engineering MCQ Practice Test

Practice Test: Question Set - 19


1. The rating of C.I. engine fuel (Diesel) is given by
    (A) Octane number
    (B) Performance number
    (C) Cetane number
    (D) None of these

2. The operation of removing trapped air from the hydraulic braking system is known as
    (A) Trapping
    (B) Tapping
    (C) Bleeding
    (D) Cleaning

3. In a four wheel drive (4WD), the numbers of gear boxes are
    (A) 1
    (B) 2
    (C) 3
    (D) 4

4. 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

5. The oil pump is driven by the
    (A) Camshaft
    (B) Alternator shaft
    (C) Crankshaft via drive belt
    (D) Crankshaft directly

6. The condition that causes vapour locking in a brake system is
    (A) Overheating of the fluid due to frequent brake application
    (B) Overcooling of the brakes during high speed driving
    (C) Keeping the vehicle without use for an extended period
    (D) An excessively high engine speed on a downhill road

7. Which one of the following statements correctly describes the construction of a planetary gear type differential?
    (A) The six planetary pinions rotate in constant mesh with the internal gears.
    (B) One drive shaft is splined to the central gear and the other to the planetary gear.
    (C) Each planetary pinion gear meshes with both the central gear and the internal gear.
    (D) The internal gear is fixed to the planetary gear.

8. A maintenance free battery
    (A) Has lead-antimony plate grid
    (B) Has lead-calcium plate grid
    (C) Does not contain acid
    (D) Does not contain water

9. 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 locking of the wheels

10. In a Diesel engine, the fuel is ignited by
    (A) An electric spark
    (B) The heat of compression
    (C) The hot exhaust
    (D) None of these

11. In a four cylinder inline engine, the number of firing strokes in one revolution of the crank is
    (A) 1
    (B) 2
    (C) 3
    (D) 4

12. The coefficient of rolling resistance for a truck weighing 63,500 N is 0.018. The rolling resistance to the truck is
    (A) 1.143 N
    (B) 11.43 N
    (C) 114.3 N
    (D) 1143 N

13. The Diesel engines as compared to petrol engines require
    (A) Bigger flywheel
    (B) Smaller flywheel
    (C) Same size of flywheel
    (D) No flywheel

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Automobile Engineering:
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  Set 19
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