Automobile Engineering problems
- 1. The function of a radiator fan in the cooling system is that
Options- A. it blows air through the radiator when necessary
- B. it is turned by wind force as the vehicle moves forward, and its rotation drives the water pump
- C. it cools the engine by blowing air onto the cylinder block
- D. it draws heat out of the engine compartment Discuss
Correct Answer: it blows air through the radiator when necessary
- 2. The main purpose of an engine's air cleaner is that it
Options- A. controls the engine's air intake volume
- B. reduces the engine's air intake noise
- C. prevents rain water from entering the engine
- D. prevents dust and other foreign matter from entering the engine Discuss
Correct Answer: prevents dust and other foreign matter from entering the engine
- 3. In case of a Diesel car, the pressure at the end of compression is of the order of
Options- A. 15 bar
- B. 25 bar
- C. 35 bar
- D. 45 bar Discuss
Correct Answer: 45 bar
- 4. The purpose of a balancer shaft is to
Options- A. balance the timing in the movement of the two groups of pistons
- B. increase inertia force of the rotating crankshaft
- C. reduce vibrations caused by the crankshaft rotation
- D. adjust the timing of the intake and exhaust valve openings Discuss
Correct Answer: reduce vibrations caused by the crankshaft rotation
- 5. The ignition coil is used to
Options- A. step up current
- B. step down current
- C. step up voltage
- D. step down voltage Discuss
Correct Answer: step up voltage
- 6. The purpose of a thermostat in an engine cooling system is to
Options- A. prevent the coolant from boiling
- B. allow the engine to warm up quickly
- C. indicate the coolant temperature
- D. pressurise the system to raise the boiling point Discuss
Correct Answer: allow the engine to warm up quickly
- 7. The gradient resistance to a vehicle having a mass of 980 kg moving on an incline of 10° is
Options- A. 1.6694 N
- B. 16.694 N
- C. 166.94 N
- D. 1669.4 N Discuss
Correct Answer: 1669.4 N
- 8. In aluminium cylinder blocks, the cylinder liners are made of
Options- A. aluminium
- B. ceramic
- C. brass
- D. cast iron Discuss
Correct Answer: cast iron
- 9. The starting system includes
Options- A. a battery, a starter, and an ignition switch
- B. a battery, a distributor, and an ignition switch
- C. a battery, a starter, and a distributor
- D. a distributor, a starter, and an ignition switch Discuss
Correct Answer: a battery, a starter, and an ignition switch
- 10. The frequency of flashing of light per minute in a direction (side turn) indicator is about
Options- A. 9
- B. 90
- C. 900
- D. 9000 Discuss
Correct Answer: 90
More in Mechanical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.