113) The main cause for the irreversibility is

mechanical and fluid friction

unrestricted expansion

heat transfer with a finite temperature difference

all of the above

Answer is:

all of the above

Thermodynamics MCQ with Answers

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114) A cycle consisting of __________ and two isothermal processes is known as Stirling cycle.

two constant pressure

two constant volume

two isentropic

one constant pressure, one constant volume

Answer is:

two constant volume

115) The heat and mechanical energies are mutually convertible. This statement was established by

Boyle

Charles

Joule

none of these

Answer is:

Joule

116) For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

greater than

less than

equal to

none of these

Answer is:

less than

117) Mond gas is obtained by

partial combusion of coal, coke, anthracite coal or charcoal in a mixed air steam blast

carbonisation of bituminous coal

passing steam over incandescent coke

passing air and a large amount of steam over waste coal at about 650 Degree Centigrade

Answer is:

passing air and a large amount of steam over waste coal at about 650 Degree Centigrade

Thermodynamics MCQ with Answers

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113) The main cause for the irreversibility is

all of the above

Thermodynamics MCQ with Answers

Related Thermodynamics MCQ with Answers

114) A cycle consisting of __________ and two isothermal processes is known as Stirling cycle.

two constant volume

115) The heat and mechanical energies are mutually convertible. This statement was established by

Joule

116) For the same compression ratio, the efficiency of Diesel cycle is __________ Otto cycle.

less than

117) Mond gas is obtained by

passing air and a large amount of steam over waste coal at about 650 Degree Centigrade

Thermodynamics MCQ with Answers