Online Quiz on Thermodynamics - Set 01 - ObjectiveBooks

# Online Quiz on Thermodynamics - Set 01

## Thermodynamics Online Quiz: Set 01

1. The conditions of temperature and pressure at 0°C (273 K) and 760 mm of Hg pressure are termed as __________ temperature and pressure.
Normal
Standard

2. One kg of carbon requires 8/3 kg of oxygen for its complete combustion and produces 11/3 kg of carbon dioxide gas.
Agree
Disagree

3. When the finely ground coal is moulded under pressure with or without a binding material, the resulting fuel is called briquetted coal.
Yes
No

4. The amount of heat required to raise the temperature of unit mass of a gas through one degree at constant pressure is called specific heat at constant pressure.
True
False

5. The state of a substance, whose evaporation from its liquid state is partial, is known as steam.
Agree
Disagree

6. Equal volumes of all gases, at the same temperature and pressure, contain equal number of molecules. This statement is called Avogadro's law.
True
False

7. A machine which violates the first law of thermodynamics is known as perpetual motion machine of the second kind.
Correct
Incorrect

8. If in the equation pvn = C, the value of n = 1, then the process is called isothermal process.
True
False

9. A cycle consisting of two constant pressure and two isothermal processes is known as Ericsson cycle.
True
False

10. The amount of heat given out by the complete combustion of 1 kg of fuel is known as calorific value of solid or liquid fuel.
True
False

11. One m3 of methane (CH4) requires 2m3 of oxygen and produces 1m3 of carbon dioxide and 2m3 of water or steam.
Correct
Incorrect

12. To ensure complete and rapid combustion of a fuel, some quantity of air, in excess of the theoretical or minimum air is supplied.
Yes
No

13. The molecular mass of a substance is the number of times a molecule of that substance is heavier than the hydrogen atom.
True
False

14. The lower calorific value of fuel may be obtained by adding the heat of steam formed during combustion to the higher calorific value.
Yes
No

15. It is impossible to transfer heat from a body at a lower temperature to a body at a higher temperature, without the aid of an external source.
Correct
Incorrect

16. One kg of sulphur requires 1 kg of oxygen for complete combustion and produces 2 kg of sulphur dioxide.
True
False

17. The numerical value of the thermal capacity and the water equivalent of the substance are the same.
Agree
Disagree

18. The efficiency of a dual combustion cycle __________ upon cut-off ratio.
Depends
Does not depend

19. The change of entropy, when heat is removed from the gas, is positive.
Yes
No

20. Coal gas consists mainly of hydrogen, carbon monoxide and various hydrocarbons.
Agree
Disagree

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