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. |
Three-way catalytic converters reduce the emission of CO, HC, and soot. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
What can be reduced by using exhaust gas recirculation (EGR) effectively? |
| A. | CO |
| B. | NOx |
| C. | HC |
| D. | CO and HC |
| Answer» C. HC | |
| 3. |
Which of the following cannot be reduced by thermal converters? |
| A. | CO |
| B. | HC |
| C. | Soot |
| D. | NOx |
| Answer» E. | |
| 4. |
Why are lead compounds added in petrol? |
| A. | Reduce knocking |
| B. | Reduce HC emission |
| C. | Reduce exhaust temperature |
| D. | Increase power output |
| Answer» C. Reduce exhaust temperature | |
| 5. |
Why is the fumigation technique used? |
| A. | To control HC |
| B. | To control NOx |
| C. | To control CO |
| D. | To control smoke |
| Answer» E. | |
| 6. |
For what purpose is the Rhodium used? |
| A. | To reduce CO and HC |
| B. | To reduce NOx |
| C. | To reduce CO |
| D. | To reduce HC |
| Answer» C. To reduce CO | |
| 7. |
During which condition of the vehicle does NOx emission in SI engine will be lowest? |
| A. | Cruising |
| B. | Idling |
| C. | Accelerating |
| D. | Decelerating |
| Answer» C. Accelerating | |
| 8. |
What does the blue smoke in diesel engine indicate? |
| A. | Unburnt oil |
| B. | HC |
| C. | NOx |
| D. | CO |
| Answer» B. HC | |
| 9. |
Which of the following causes the photochemical smog? |
| A. | Excess O2 |
| B. | CO and CO2 |
| C. | Soot and particulate matter |
| D. | NOx and HC |
| Answer» E. | |
| 10. |
Which of the following is one of the major exhaust emissions from CI engines compared to SI engines? |
| A. | Oxides of nitrogen |
| B. | Particulates |
| C. | CO and CO2 |
| D. | Unburnt hydrocarbon |
| Answer» C. CO and CO2 | |