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 is the molecular structure of the straight-run gasoline changed? |
| A. | By cracking |
| B. | By reforming |
| C. | By refining |
| D. | By boiling |
| Answer» C. By refining | |
| 2. |
What are the characteristics of good CI engine fuel? |
| A. | High octane number |
| B. | Very high cetane number |
| C. | Short ignition lag |
| D. | Short ignition lag, high cetane number, and high octane number |
| Answer» D. Short ignition lag, high cetane number, and high octane number | |
| 3. |
How is paraffin represented by? |
| A. | C<sub>n</sub>H<sub>n</sub> |
| B. | C<sub>n</sub>H<sub>2n</sub> |
| C. | C<sub>n</sub>H<sub>2n+2</sub> |
| D. | C<sub>n</sub>H<sub>2n-6</sub> |
| Answer» D. C<sub>n</sub>H<sub>2n-6</sub> | |
| 4. |
By which quantity is ignition quality of diesel fuel indicated? |
| A. | Fire point |
| B. | Flashpoint |
| C. | Cetane point |
| D. | Octane point |
| Answer» D. Octane point | |
| 5. |
What is octane number of iso-octane? |
| A. | 0 |
| B. | 30 |
| C. | 60 |
| D. | 100 |
| Answer» E. | |
| 6. |
Which of the following is the advantage of the gaseous fuel? |
| A. | It can be stored easily |
| B. | It can mix easily with air |
| C. | It can displace more air from the engine |
| D. | It can be stored, get mixed with air and can displace more air from the engine. |
| Answer» C. It can displace more air from the engine | |
| 7. |
Which molecular structure does the paraffin possess? |
| A. | Chain saturated |
| B. | Chain unsaturated |
| C. | Ring saturated |
| D. | Ring unsaturated |
| Answer» B. Chain unsaturated | |
| 8. |
For CI engines which fuels are preferred? |
| A. | Napthenes |
| B. | Paraffin |
| C. | Olefins |
| D. | Aromatics |
| Answer» C. Olefins | |
| 9. |
For SI engines which fuels are preferred? |
| A. | Aromatics |
| B. | Paraffin |
| C. | Olefins |
| D. | Napthenes |
| Answer» B. Paraffin | |
| 10. |
How are hydrocarbons decomposed into smaller hydrocarbons? |
| A. | By reforming |
| B. | By refining |
| C. | By cracking |
| D. | By polymerization |
| Answer» D. By polymerization | |