MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Ic Engine knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In order to mix air and petrol in the required proportion and to supply it to the engine during suction stroke, then ______________ is employed. |
| A. | fuel pump |
| B. | injector |
| C. | carburetor |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2. |
The ___________ engines can work on very lean mixture of fuel. |
| A. | spark ignition |
| B. | compression ignition |
| C. | spark & compression ignition |
| D. | none of the mentioned |
| Answer» C. spark & compression ignition | |
| 3. |
A high flame speed is obtained in diesel engine when air fuel ratio is ____________ |
| A. | uniform throughout the mixture |
| B. | chemically correct mixture |
| C. | about 3-5% rich mixture |
| D. | about 10% rich mixture |
| Answer» E. | |
| 4. |
Which is the most effective air cleaner in the case of diesel engines? |
| A. | dry type |
| B. | wet type |
| C. | whirl type |
| D. | oil bath type |
| Answer» E. | |
| 5. |
Auto-ignition reaction time for petrol engine first decreases with increase in fuel air ratio, reaches a minimum value and then increases with subsequent increase in fuel air ratio. The maximum value occurs in the region of ____________ |
| A. | lean mixture |
| B. | chemically correct mixture |
| C. | rich mixture |
| D. | none of the mentioned |
| Answer» C. rich mixture | |
| 6. |
The specific fuel consumption for a petrol engine first decreases with increase in fuel air ratio and then increases with further increase in air fuel ratio. The maximum value occurs in the range of ____________ |
| A. | lean mixture |
| B. | chemically correct mixture |
| C. | rich mixture |
| D. | none of the mentioned |
| Answer» B. chemically correct mixture | |
| 7. |
The m.e.p. of a petrol engine first increases as the fuel air ratio is increased and then decreases on further increase in fuel air ratio. The m.e.p. is maximum in the zone of ____________ |
| A. | lean mixture |
| B. | chemically correct mixture |
| C. | rich mixture |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 8. |
Air injected in IC engines refers to injection of ____________ |
| A. | air only |
| B. | liquid fuel only |
| C. | liquid fuel and air |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |