Multiple Choice Questions (MCQ) on Fuels

Multiple Choice Questions (MCQ) on Fuels, Fuel MCQ, Engineering Chemistry MCQ, multiple-choice questions on fuels, fuel, and combustion MCQ,  MCQ on liquid fuels, fuel questions and answers, fuel technology MCQ, MCQ on gaseous fuels, fuel, and lubricants MCQ, Multiple Choice Questions (MCQ) on Fuels

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Multiple Choice Questions

Q.1. A good fuel has

  • Moderate ignition temperature and high calorific value
  • High ignition temperature and high calorific value
  • Low ignition temperature and low calorific value
  • Low ignition temperature and high calorific value

Answer: Moderate ignition temperature and high calorific value

Q.2. The total quantity of heat liberated when a unit mass (or volume) of a fuel is burnt completely is called its

  • Heat value
  • Calorific value
  • Burning value
  • Combustion value

Answer: Calorific value

Q.3. The calorific value of solid or non-volatile liquid fuel is found with the help of

  • Junkers calorimeter
  • Bomb calorimeter
  • Boys calorimeter
  • Orsat apparatus

Answer: Bomb calorimeter

Q.4. On the basis of its carbon contents and contents of moisture and volatile matter the best quality coal is

  • Peat
  • Lignite
  • Bituminous
  • Anthracite

Answer: Anthracite

Q.5. Ultimate analysis of coal is used to determine

  • Percentage of carbon and hydrogen
  • Percentage of sulphur
  • Percentage of nitrogen
  • All of the above

Answer: All of the above

Q.6. The following can be estimated using the proximate analysis of coal

  • Percentage of moisture
  • Percentage of volatile matter
  • Percentage of ash
  • All of the above

Answer: All of the above

Q.7. Which of the following by-products is not recovered in Otto Hoffman’s by-product coke oven method

  • LPG
  • Benzene
  • Naphthalene
  • Ammoniacal liquor

Answer: LPG

Q.8. The process of breaking bigger hydrocarbons into simpler low boiling point fractions is called

  • Reforming
  • Cracking
  • Refining
  • Knocking 

Answer: Cracking

Q.9. Synthetic petrol can be obtained by

  • Polymerisation
  • Fischer–Tropsch method
  • Bergius process
  • All of the above

Answer: All of the above

Q.10. The process of bringing structural modifications in straight run gasoline to improve its antiknock characteristics is termed as

  • Cracking
  • Refining
  • Reforming
  • Knocking

Answer: Reforming

Q.11. Junker’s calorimeter is used to determine the calorific value of a

  • Gaseous fuel
  • Solid fuel
  • Liquid fuel
  • None of the above

Answer: Gaseous fuel

Q.12. The ignition characteristics of diesel are expressed in terms of

  • Octane number
  • Cetane number
  • Viscosity
  • Flash and fire point

Answer: Cetane number

Q.13. The addition of TEL to gasoline

  • Increases the viscosity of gasoline
  • Increases the rate of combustion of gasoline
  • Increases the octane number of gasoline
  • Decreases the octane number of gasoline

Answer: Increases the octane number of gasoline

Q.14. Following compounds have been arbitrarily assigned an octane number of zero and hundred, respectively

  • n-heptane and isooctane
  • n- octane and isoheptane
  • Isooctane and n-heptane
  • n-hexadecane and 2- methylnaphthalene

Answer: n-heptane and isooctane

Q.15. The cetane number of high-speed diesel, medium-speed diesel, and low-speed diesel is nearly

  • 40, 30 and 20, respectively
  • 45, 35 and 25, respectively
  • 50, 40 and 30, respectively
  • 25, 15 and 5, respectively

Answer: 45, 35 and 25, respectively

Q.16. Oil gas is obtained by the cracking of

  • Diesel oil
  • Petrol
  • Kerosene oil
  • Heavy oil

Answer: Kerosene oil

Q.17. Producer gas is a mixture of

  • CO + N2
  • CO + H2
  • CO + CO2
  • CO + O

Answer: CO + N2

Q.18. The gas named ‘blue gas’ is

  • Producer gas
  • Water gas
  • CNG
  • LPG

Answer: Water gas

Q.19. The gases analyzed by Orsat flue gas apparatus are

  • SO2, O2, CO2, H2O vapours
  • Cl2, N2, O2, SO2
  • SO2, CO2, N2, O2
  • CO2, O2, CO and N2 

Answer: CO2, O2, CO and N2

Q.20. Arrange n-heptane, isooctane, and naphthalene in increasing order of their knocking tendency

  • Naphthalene < isooctane < n-heptane
  • Isooctane < n-heptane < naphthalene
  • n-heptane < naphthalene < isooctane
  • Naphthalene < n-heptane < isooctane

Answer: Naphthalene < isooctane < n-heptane

Q.21. The catalyst used for the cracking of heavy oil is

  • Ni or Sn oleate
  • Al2O3 + ZrO2 + clay
  • Co+ Th + MgO + keiselguhr
  • Pt – Al2O3

Answer: Al2O3 + ZrO2 + clay

Q.22. Power alcohol is a mixture of

  • Petrol + ethyl alcohol
  • Diesel + ethyl alcohol
  • Petrol + methyl alcohol
  • Diesel + methyl alcohol

Answer: Petrol + ethyl alcohol

Q.23. Which of the following is not a renewable source of energy

  • Solar energy
  • Wind energy
  • Petrol
  • Energy from hydrogen 

Answer: Petrol

Q.24. Coke is preferred to coal in the metallurgical process because of

  • High strength and high porosity
  • Less sulphur content and low ash
  • Burns with a short flame
  • All of the above

Answer: All of the above

Q.25. The lowest boiling fraction of crude oil is

  • Petroleum ether
  • Kerosene oil
  • Diesel oil
  • Gasoline or petrol 

Answer: Petroleum ether

Q.26. Presently which of the following renewable energy sources is exploited the most for power generation

  • Solar Energy
  • Hydro energy
  • Wind Energy
  • Geothermal Energy

Answer: Hydro energy

Q.27. Which of the following is a non-conventional energy source

  • Coal
  • Petrol
  • Diesel
  • Biomass 

Answer: Biomass

Q.28. Solar energy can be used for

  • Heating water
  • Cooking food
  • Generating electricity
  • All the above

Answer: All the above

Q.29. Cells commonly employed to convert solar energy to electricity are

  • Photovoltaic cells
  • Fuel cells
  • Secondary cells
  • Reserve batteries

Answer: Photovoltaic cells

Q.30. The minimum water head essential for electricity generation from tides is

  • 1–2 m
  • 2–3 m
  • 3–4 m
  • more than 5 m

Answer: more than 5 m

Q.31. Energy generated by utilizing the temperature difference in the earth’s interior is called the

  • Geothermal energy
  • Hydrogen energy
  • Tidal and wave energy
  • Ocean thermal energy

Answer: Geothermal energy

Q.32. Which of the following is not a fossil fuel

  • Biomass
  • Coal
  • Kerosene
  • Petrol

Answer: Biomass

Q.33. The material most commonly used in a photovoltaic cell is

  • Hydrogen
  • Silicon
  • Tellurium
  • Antimony

Answer: Silicon

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