Engineering Thermodynamics (3131905) MCQ

MCQs of First Law of Thermodynamics

MCQ No - 1

The first law of thermodynamics furnishes the relation between

(A)

heat and work

(B)

heat, work, and property of the system

(C)

various properties of the system

(D)

various thermodynamic processes


B
MCQ No - 2

The heat and mechanical energy are mutually convertible. This statement was established by

(A)

Boyle

(B)

Charles

(C)

Joule

(D)

none of these


C
MCQ No - 3

Which of the following is true for a steady flow system?

(A)

Mass entering = mass leaving

(B)

Mass does not enter or leave the system

(C)

Mass entering can be more or less than the mass leaving

(D)

None of the mentioned


A
MCQ No - 4

During the throttling process enthalpy

(A)

remains constant

(B)

decreases

(C)

increases

(D)

may increase or decrease


A
MCQ No - 5

A device that violates the conservation law of energy is called a 

(A)

Perpetual Motion Machine of the second kind

(B)

Perpetual Motion Machine of the first kind

(C)

Perpetual Motion Machine of the third kind

(D)

None of these


B