Discussion
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- Question
If the spark plug deposit indicates black coating of soot, it indicates that the engine has been generally operating on
Options- A. too lean mixture
- B. stoichiometric mixture
- C. most economical mixture
- D. too rich mixture
- Correct Answer
- too rich mixture
- 1. The size of engine cylinder is referred in terms of its
Options- A. diameter and bore
- B. displacement and efficiency
- C. bore and stroke
- D. bore and length Discuss
- 2. During braking, the brake shoe is moved outward to force the lining against the
Options- A. wheel piston or cylinder
- B. anchor pin
- C. brake drum
- D. wheel rim or axle Discuss
- 3. The number of exhaust manifolds in a V-6 engine are
Options- A. one
- B. two
- C. four
- D. eight Discuss
- 4. The function of a first compression ring (top ring) is that it
Options- A. increases the combustion temperature
- B. creates swirl
- C. maintains a seal and prevents the fuel leakage
- D. maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber Discuss
- 5. The function of oil-control rings is that it
Options- A. lubricates the cylinder wall by releasing oil from its hole
- B. keeps the cylinder wall lubricated by holding oil in its channel
- C. prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan
- D. maintains a seal and prevents escape of burned gases and oil leakage Discuss
- 6. The boiling point of Diesel fuel is in the range of
Options- A. 70°C to 100°C
- B. 100°C to 120°C
- C. 120°C to 180°C
- D. 180°C to 360 °C Discuss
- 7. The octane number of compressed natural gas (CNG) is
Options- A. 90
- B. 100
- C. 110
- D. 120 Discuss
- 8. The smooth shift mechanism of an automatic transmission reduces the degree of shock at shifting of gears.
Options- A. Yes
- B. No Discuss
- 9. The negative plates of a lead acid battery has
Options- A. lead peroxide (PbO2)
- B. spongy lead (Pb)
- C. lead sulphate (PbSO4)
- D. sulphuric acid (H2SO4) Discuss
- 10. The three basic cylinder arrangements for automotive engines are
Options- A. flat, radial, and V
- B. in a row, in line, and opposed
- C. in line, V, and opposed
- D. V, double row, and opposed Discuss
Automobile Engineering problems
Search Results
Correct Answer: bore and stroke
Correct Answer: brake drum
Correct Answer: two
Correct Answer: maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber
Correct Answer: prevents engine oil from going into the combustion chamber and returns excess lubricating oil off the cylinder wall through the return holes in the piston to the oil pan
Correct Answer: 180°C to 360 °C
Correct Answer: 120
Correct Answer: Yes
Correct Answer: spongy lead (Pb)
Correct Answer: in line, V, and opposed
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