MCQOPTIONS
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MCQOPTIONS
This section includes 13 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 is also known as harmonic balancer? |
| A. | Counterweight |
| B. | Crank web |
| C. | Vibration dampers |
| D. | Main journal |
| Answer» D. Main journal | |
| 2. |
What is the percentage of carbon present in a cast steel type crankshaft? |
| A. | 0-1 |
| B. | 2-4 |
| C. | 1.35-1.6 |
| D. | 4-6 |
| Answer» D. 4-6 | |
| 3. |
How much is the ultimate tensile strength of the crankshaft material in MPa? |
| A. | 400 |
| B. | 500 |
| C. | 600 |
| D. | 700 |
| Answer» D. 700 | |
| 4. |
How many types of crankshaft construction are used universally? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 6 |
| Answer» C. 4 | |
| 5. |
Which of the following is not a major part of the crankshaft? |
| A. | Main journal |
| B. | Crank pins |
| C. | Water pump |
| D. | Crank webs |
| Answer» D. Crank webs | |
| 6. |
Which of the following material is the most commonly used in the construction of crankshaft? |
| A. | Cast steel |
| B. | Bronze |
| C. | Copper |
| D. | lead |
| Answer» B. Bronze | |
| 7. |
Which of the following acts as a damper in a belt-driven crankshaft? |
| A. | Fulcrum |
| B. | Rocker arm |
| C. | Belt |
| D. | Strainer |
| Answer» D. Strainer | |
| 8. |
In the below-shown diagram what is the make of the missing part of the counterweights? |
| A. | Crankpin |
| B. | Oil hole |
| C. | Thrust bearing |
| D. | Flywheel |
| Answer» B. Oil hole | |
| 9. |
Which of the following is termed as the escape of the gasses from the combustion chamber and entering into the crankshaft? |
| A. | Scuffing |
| B. | Piston slap |
| C. | Buckling |
| D. | Blow-by |
| Answer» E. | |
| 10. |
How much percentage of the cylinder bore size concerningthe thickness of the crank web? |
| A. | 80 |
| B. | 60 |
| C. | 20 |
| D. | 40 |
| Answer» D. 40 | |
| 11. |
Which of the following helps in the uniform speed of crankshaft despite uneven power impulses of the engine cylinder? |
| A. | Piston |
| B. | Connecting rod |
| C. | Gasket |
| D. | Flywheel |
| Answer» E. | |
| 12. |
Which of the following is defined as the distance between the axis of the main journal and the crankpin center lines is exactly one half of the engine stroke? |
| A. | Crank length |
| B. | Crank web |
| C. | Crank-throw |
| D. | Crank shift |
| Answer» C. Crank-throw | |
| 13. |
To withstand which of the following the crank webs are made adequately strong? |
| A. | To withstand the twisting and bending loads |
| B. | To withstand the pressure difference |
| C. | To withstand against the corrosion action |
| D. | To withstand against the misfiring |
| Answer» B. To withstand the pressure difference | |