MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Automobile Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How does the water circulation happen in a thermosyphon cooling system? |
| A. | Due to conduction currents |
| B. | Due to a gear drove water pump |
| C. | Due to change in the density of water |
| D. | Due to a belt-driven water impeller |
| Answer» B. Due to a gear drove water pump | |
| 2. |
What is the purpose of a fan in a liquid cooling system? |
| A. | To disperse engine fumes |
| B. | To pump cold air over the hot water |
| C. | To cool the external surface of the engine |
| D. | To drive airflow when the vehicle speed is low |
| Answer» C. To cool the external surface of the engine | |
| 3. |
Why does the engine overheating happen? |
| A. | Due to a broken fan belt |
| B. | Due to excess coolant |
| C. | Due to an open thermostat |
| D. | Due to the stuck radiator pressure cap |
| Answer» B. Due to excess coolant | |
| 4. |
What is the purpose of the thermostat in an engine cooling system? |
| A. | To allow the engine to warm-up quickly |
| B. | To prevent the coolant from boiling |
| C. | To pressurize the system |
| D. | To indicate to the driver the coolant temperature |
| Answer» B. To prevent the coolant from boiling | |
| 5. |
Which pump is used in a forced cooling system? |
| A. | Piston pump |
| B. | Gear pump |
| C. | Vane pump |
| D. | Centrifugal pump |
| Answer» E. | |
| 6. |
What is a direct system of cooling the air? |
| A. | Cooling water flows by gravity |
| B. | Hot water is continuously cooled and circulated |
| C. | Hot water is simply discharged |
| D. | Water is allowed to evaporate in the cylinder jacket |
| Answer» D. Water is allowed to evaporate in the cylinder jacket | |
| 7. |
What is the material of the radiator cooling tube? |
| A. | Rubber |
| B. | Plastic |
| C. | Brass |
| D. | Copper |
| Answer» E. | |
| 8. |
What is the advantage of the liquid cooling system? |
| A. | Dependent only on water supply |
| B. | Power absorbed by the pump is considerable |
| C. | Even cooling |
| D. | Very cheap |
| Answer» D. Very cheap | |
| 9. |
Why is thermostat used? |
| A. | To control the velocity of water |
| B. | To control the distribution of water to various cylinders |
| C. | To control the water temperature |
| D. | To control the pressure of water |
| Answer» D. To control the pressure of water | |
| 10. |
Why is radiator provided? |
| A. | To cool the jacket water |
| B. | To pressurize the cooling water |
| C. | To provide additional water flow |
| D. | To cool the external surface of the engine |
| Answer» B. To pressurize the cooling water | |