Automobile Engineering problems
- 1. A clutch is usually designed to transmit maximum torque which is
Options- A. equal to the maximum engine torque
- B. 80 per cent of the maximum engine torque
- C. 150 per cent of the maximum engine torque
- D. none of these Discuss
Correct Answer: 150 per cent of the maximum engine torque
- 2. The firing order for an in-line four cylinder I.C. engine is
Options- A. 1-2-3-4
- B. 1-3-4-2
- C. 1-2-4-3
- D. 1-3-2-4 Discuss
Correct Answer: 1-3-4-2
- 3. The air gap between the central electrode and ground (or side) electrode of a spark plug is around
Options- A. 0.2 mm
- B. 0.5 mm
- C. 1 mm
- D. 1.5 mm Discuss
Correct Answer: 1 mm
- 4. The information provided by the oxygen (O2) sensor to the feedback control system is about the
Options- A. air-fuel ratio
- B. air temperature
- C. air flow speed
- D. exhaust gas volume Discuss
Correct Answer: air-fuel ratio
- 5. The vehicle ride will be comfortable if
Options- A. unsprung mass is kept minimum
- B. sprang mass is kept minimum
- C. vehicle mass is kept minimum
- D. all of these Discuss
Correct Answer: unsprung mass is kept minimum
- 6. If the engine coolant leaks into the engine oil, then engine oil
Options- A. appears milky
- B. becomes foamy
- C. turns black
- D. none of these Discuss
Correct Answer: appears milky
- 7. The motion of the cam is transferred to the valves through
Options- A. pistons
- B. rocker arms
- C. camshaft pulley
- D. valve stems Discuss
Correct Answer: rocker arms
- 8. In a fuel injection system, the electronic control module (ECM) calculates the optimum fuel-injection volume for the engine condition based on the data received from the sensors, and injects this volume of fuel into the intake manifold at the optimum timing.
Options- A. Correct
- B. Incorrect Discuss
Correct Answer: Correct
- 9. The cetane rating of Diesel fuel is in the order of
Options- A. 25
- B. 45
- C. 70
- D. 90 Discuss
Correct Answer: 45
- 10. The natural gas is compressed in a CNG cylinder at a pressure of
Options- A. 200 bar
- B. 220 bar
- C. 250 bar
- D. 300 bar Discuss
Correct Answer: 200 bar
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