Mechanical Engineering Objective Questions { Thermodynamics }

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134. Diesel cycle consists of following four processes

A. Two isothermals and two isentropics

B. Two isentropics and two constant volumes

C. Two isentropics, one constant volume and one constant pressure

D. Two isentropics and two constant pressures

135. Carnot cycle is

A. A reversible cycle

B. a semi-reversible cycle

C. a quasi-static cycle

D. An adiabatic irreversible cycle

136. If both Stirling and Carnot cycles operate within the same temperature limits, then efficiency of Stirling cycle as compared to Carnot cycle

D. Depends on other factors

137. A cycle consisting of two adiabatics and two constant pressure processes is known as

B. Ericsson cycle

D. Stirling cycle

138. Stirling and Ericsson cycles are

A. Reversible cycles

B. Irreversible cycles

C. Quasi-static cycles

D. Semi-reversible cycles

139. Brayton cycle consists of following four processes

A. Two isothermals and two isentropics

B. Two isentropics and two constant volumes

C. Two isentropics, one constant volume and one constant pressure

D. Two isentropics and two constant pressures

140. Reversed joule cycle is called

A. Carnot cycle

B. Rankine cycle

C. Bray-ton cycle

D. Bell Coleman cycle

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