MCQOPTIONS
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MCQOPTIONS
This section includes 13 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. |
Gaseous fuel guarantees are based on ___________ |
| A. | calorific value of oil |
| B. | low heat value of oil |
| C. | mean heat value of oil |
| D. | none of the mentioned |
| Answer» C. mean heat value of oil | |
| 2. |
In a diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of ___________ |
| A. | 250 C |
| B. | 500 C |
| C. | 1000 C |
| D. | 1500 C |
| Answer» D. 1500 C | |
| 3. |
Diesel fuel, compared to petrol is ___________ |
| A. | less difficult to ignite |
| B. | just about the same difficult to ignite |
| C. | more difficult to ignite |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 4. |
Polymerization is a chemical process in which molecules of a compound become ___________ |
| A. | larger |
| B. | smaller |
| C. | liquid |
| D. | gaseous |
| Answer» B. smaller | |
| 5. |
Normal heptane ___________ |
| A. | accelerates auto-ignition |
| B. | helps to resist auto-ignition |
| C. | does not affect auto-ignition |
| D. | none of the mentioned |
| Answer» B. helps to resist auto-ignition | |
| 6. |
Ethyl fluid is used ___________ |
| A. | to increase the octane rating of the fuel |
| B. | to increase the cetane rating of the fuel |
| C. | as a defrosting agent |
| D. | none of the mentioned |
| Answer» B. to increase the cetane rating of the fuel | |
| 7. |
What is Cetane? |
| A. | It has zero cetane number |
| B. | It has 100 cetane number |
| C. | It helps detonation |
| D. | It is a straight chain paraffin |
| Answer» E. | |
| 8. |
Octane number is determined by comparing the performance of petrol with the following hydro-carbons? |
| A. | iso-octane |
| B. | mixture of normal heptane and iso octane |
| C. | alpha methyl napthalene |
| D. | none of the mentioned |
| Answer» C. alpha methyl napthalene | |
| 9. |
What is Iso-octane? |
| A. | It has an octane number of 0 |
| B. | It has an octane number of 50 |
| C. | It has an octane number of 100 |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 10. |
Self-ignition temperature of petrol is of the order of ____________ |
| A. | 150 C |
| B. | 240 C |
| C. | 370 C |
| D. | more than 500 C |
| Answer» E. | |
| 11. |
Kerosene is distilled at ____________ |
| A. | 30-65 C |
| B. | 65-220 C |
| C. | 220-350 C |
| D. | 350-450 C |
| Answer» D. 350-450 C | |
| 12. |
Petrol is distilled at a temperature in range of ______________ |
| A. | 30-65 C |
| B. | 65-220 C |
| C. | 220-350 C |
| D. | 350-450 C |
| Answer» C. 220-350 C | |
| 13. |
Ignition quality of petrol is expressed by? |
| A. | octane number |
| B. | calorific value |
| C. | self ignition temperature |
| D. | cetane number |
| Answer» B. calorific value | |