1000+ Mechanical Engineering Thermodynamics Questions & Answers Pdf - 1

Question: 1

Pipes are insulated so that

(A) heat loss from the surface is minimized

(B) capacity to withstand pressure is increased

(C) there is minimum corrosion

(D) they may not break under pressure

Ans: A

heat loss from the surface is minimized

Question: 2

A process which does not dissipate available energy is known as

(A) frictionless process

(B) ideal process

(C) isothermal process

(D) adiabatic process

Ans: B

ideal process

Question: 3

Balanced draft incorporates

(A) chimney draft only

(B) forced and induced draft

(C) induced draft

(D) forced draft

Ans: B

forced and induced draft

Question: 4

Which of the following is not a property of the system?

(A) work

(B) specific volume

(C) pressure

(D) temperature

Ans: A

work

Question: 5

Ericsson cycle processes are

(A) two adiabatic, constant volume and constant pressure

(B) two isothermal and two isentropic

(C) two isothermal and two constant volumes

(D) two isothermal and two constant pressures

Ans: D

two isothermal and two constant pressures

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