MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Automotive Engine Auxiliary Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following when decreased reduces the bearing clearance? |
| A. | Number of shims |
| B. | Number of valves |
| C. | Displacement of the piston |
| D. | Number of spark plugs |
| Answer» B. Number of valves | |
| 2. |
What is the value of silicon and copper in an extra heavy-duty type sealed power bearing? |
| A. | 11% silicon and 1% copper |
| B. | 1% silicon and 11% copper |
| C. | 5% silicon and 10% copper |
| D. | 10% silicon and 5% copper |
| Answer» B. 1% silicon and 11% copper | |
| 3. |
What is the value of antimony present in a Babbit metal? |
| A. | 5.5 |
| B. | 7.5 |
| C. | 6.5 |
| D. | 8.5 |
| Answer» C. 6.5 | |
| 4. |
Which of the following more when compared to others in a medium-duty sealed powder bearings? |
| A. | Conformability |
| B. | Embeddability |
| C. | Corrosion |
| D. | Fatigue strength |
| Answer» E. | |
| 5. |
Which of the following material is usually used in the backing to provide support against the shaft load? |
| A. | Lead |
| B. | Copper |
| C. | Tim |
| D. | Steel |
| Answer» E. | |
| 6. |
Which are the types of material used in Babbit type bearing material? |
| A. | Lead with a small quantity of copper and antimony |
| B. | Steal with a small quantity of zinc and tin |
| C. | Zinc with a small quantity of lead and copper |
| D. | Silver with a small quantity of brass and aluminum |
| Answer» B. Steal with a small quantity of zinc and tin | |
| 7. |
Which one of the following is not an engine bearing requirement? |
| A. | Corrosion resistance |
| B. | Long life |
| C. | Should multiple the variation of the shafts |
| D. | Should have score resistance |
| Answer» D. Should have score resistance | |
| 8. |
Which of the following helps the engine bearing by supporting the operating loads with minimum friction? |
| A. | Good fuel-air ratio for combustion |
| B. | Vibration dampers |
| C. | Clutch |
| D. | Lubricant |
| Answer» E. | |
| 9. |
Which is the bearing material which is being used in the modern engine? |
| A. | Brass |
| B. | Cast iron |
| C. | Aluminum |
| D. | Chromium |
| Answer» D. Chromium | |
| 10. |
Which of the following is provided to cushion the journal and to increase the life of the bearing? |
| A. | Direction control valve |
| B. | Overlay |
| C. | Position control valve |
| D. | Compressor |
| Answer» C. Position control valve | |
| 11. |
How is one of the bearings made to prevent the crankshaft from moving to and fro in the endwise direction? |
| A. | Magnetic bearing |
| B. | Fluid bearing |
| C. | Ball-bearing |
| D. | Thrust bearing |
| Answer» E. | |
| 12. |
What is the thickness in mm of the overlay which is provided on the bearings? |
| A. | 0.01-0.02 |
| B. | 0.03-0.04 |
| C. | 0.05-0.06 |
| D. | 0.07-0.08 |
| Answer» B. 0.03-0.04 | |