96) For the same compression ratio, the efficiency of dual combustion cycle is

Answer is:

greater than Diesel cycle and less than Otto cycle

Thermodynamics MCQ with Answers

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97) In an irreversible process, there is a

Answer is:

loss of heat

98) 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.

Answer is:

Right

Explanation:

The specific heat of a substance my be broadly defined as the amount of heat required to raise the temperature of its unit mass through 1 degree. All the liquids and solids have one specific heat only. But a gas can have any number of specific heats depending upon the conditions, under which it is heated.

Specific heat at constant volume is the amount of heat required to raise the temperature of a unit mass of a gas throught 1 degree, when it is heat at constant volume.

Specific heat at constant pressure is the amount of heat required to raise the temperature of a unit mass of a gas through 1 degree, when it is heated at constant pressure.
The ratio of specific heat at constant pressure Cp and specific heat at constant volume Cv is always more than one.

99) The change of entropy, when heat is removed from the gas, is negative.

Answer is:

Yes

100) Coke is produced

when coal is first dried and then crushed to a fine powder by pulverising machine

from the finely ground coal by moulding under pressure with or without a binding material

when coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel

by heating wood with a limited supply of air to a temperature not less than 280 Degree Centigrade

Answer is:

when coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel

Thermodynamics MCQ with Answers

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96) For the same compression ratio, the efficiency of dual combustion cycle is

greater than Diesel cycle and less than Otto cycle

Thermodynamics MCQ with Answers

Related Thermodynamics MCQ with Answers

97) In an irreversible process, there is a

loss of heat

98) 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.

Right

99) The change of entropy, when heat is removed from the gas, is negative.

Yes

100) Coke is produced

when coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel

Thermodynamics MCQ with Answers