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IC Engine Practice Test: Conventional and Alternate Fuels
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Conventional and Alternate Fuels topics include: Fuels quality and its ratings, alternate fuels, ci engine, gaseous fuels, hydrogen engine and dual fuel operations. Conventional fuels are derived from fossil fuels, such as coal, oil, and natural gas. Some examples of conventional fuels include: Petroleum, Propane, Natural gas.  Alternative fuels are obtained by mixing conventional fuels with non-hazardous waste.  Some examples of alternative fuels include: Biodiesel Bioalcohol Chemically stored electricity Hydrogen Non fossil methane Non fossil natural gas Vegetable oil  Some... Show more
IC Engine Practice Test: Conventional and Alternate Fuels
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25 Questions

1. The calorific value of alcohols is _____________ in diesel oil.
2. Detonation is caused by which of the following unstable compounds?
3. Hydrogen gas has ______________ self-ignition temperature.
4. For best results of efficient combustion, high speed diesel engines need an approximate cetane number of _____________
5. A mixture containing 65% of iso-octane and 35% of normal heptane will have ___________
6. The power output of hydrogen engine is limited by ___________
7. Self-ignition temperature of petrol is of the order of ____________
8. The knock in diesel engine occurs due to ___________
9. The molecular structure of the straight-run gasoline is changed by ___________
10. Which is the effective inhibitor of pre-ignition?
11. In spark ignition engines, the knocking tendency can be decreased by ______________
12. Which of the following is the lightest and most volatile liquid fuel?
13. To reduce the possibility of knock in C.I. engines, the first elements of fuel and air should have ___________
14. Diesel fuel, compared to petrol is ___________
15. What is the advantage of hydrogen as an IC engine fuel?
16. Octane number is determined by comparing the performance of petrol with the following hydro-carbons?
17. What is Iso-octane?
18. Petrol is distilled at a temperature in range of ______________
19. What is the compression ratio of motor cars?
20. Paraffins have molecular structure of ___________
21. What is the specific gravity of diesel oil?
22. A fuel of an octane number rating of 75 matches in knocking intensity as a mixture of ___________
23. In a diesel engine the diesel fuel injected into cylinder would burn instantly at about compressed air temperature of ___________
24. A fuel of cetane number 40 has the same ignition quality as a mixture of ___________
25. The ash content in diesel oil should not be more than ___________

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