Automobile Engineering problems
- 1. The purpose of a cylinder head gasket is to
Options- A. prevent the combustion gases from leaking from the joint between the cylinder block and the cylinder head
- B. prevent engine oil from going into combustion chamber
- C. removes impurities from cylinder head lubricating oil
- D. none of the above Discuss
Correct Answer: prevent the combustion gases from leaking from the joint between the cylinder block and the cylinder head
- 2. The major purpose of an electronically-controlled automatic transmission is that this type of transmission
Options- A. eliminates gear clutches
- B. eliminates the gear shift lever
- C. reduces the number of automatic-transmission components
- D. reduces shift shock and achieves more efficient transmission of engine torque Discuss
Correct Answer: reduces shift shock and achieves more efficient transmission of engine torque
- 3. The air resistance to a car at 20 kmph is R. The air resistance at 40 kmph will be
Options- A. R
- B. 2 R
- C. 4R
- D. 4 R2 Discuss
Correct Answer: 4R
- 4. The service brakes employed in cars are generally operated
Options- A. mechanically
- B. hydraulically
- C. pneumatically
- D. none of these Discuss
Correct Answer: hydraulically
- 5. The aspect ratio (expressed in percentage) of the tyre is defined as the ratio of
Options- A. section width to section height
- B. section height to section width
- C. wheel diameter to section height
- D. wheel diameter to section width Discuss
Correct Answer: section height to section width
- 6. The octane rating of petrol commerically available is
Options- A. 85-95
- B. 95-100
- C. 100-110
- D. 110-125 Discuss
Correct Answer: 85-95
- 7. The function of a second ring is that it is a
Options- A. back up compression ring which will work in place of the top ring when it is broken
- B. compression ring and aids the top ring in sealing and cooling
- C. back up oil control ring which will work in place of the bottom ring when it is broken
- D. cushion ring which prevents piston slap and knock Discuss
Correct Answer: compression ring and aids the top ring in sealing and cooling
- 8. In order to implement gear changes in the gear unit of an automatic transmission, a __________ is used.
Options- A. synchronizer
- B. planetary gear
- C. magnetic clutch
- D. hydraulic multi plate clutch Discuss
Correct Answer: hydraulic multi plate clutch
- 9. The compression ratio for Diesel engines usually lies in the range of
Options- A. 6-10
- B. 10-15
- C. 15-25
- D. 25-40 Discuss
Correct Answer: 15-25
- 10. The ball joints are used on the tie-rod ends, because they
Options- A. reduce the amount of noise generated
- B. reduce the amount of sliding resistance
- C. can deal with movement of the suspension both vertically and in other directions
- D. improve the force transmission speed Discuss
Correct Answer: can deal with movement of the suspension both vertically and in other directions
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