Engineering Thermodynamics (3131905) MCQ

MCQs of Basic Concepts of Thermodynamics

MCQ No - 1

A system

(A)

is a specified region, where a transfer of energy and/or mass are to be studied

(B)

cannot transfer either energy or mass to or from the surroundings

(C)

is a region of constant mass and only energy is allowed to cross the boundaries

(D)

has a mass transfer across its boundaries and the mass within the system is not constant


A
MCQ No - 2

An open system is one in which

(A)

heat and work crosses the boundary of the system, but the mass of the working substance does not crosses the boundary of the system

(B)

mass of the working substance crosses the boundary of the system but the heat and work does not crosses the boundary of the system

(C)

both the heat and work as well as mass of the working substance crosses the boundary of the system

(D)

neither the heat and work nor the mass of the working substance crosses the boundary of the system


C
MCQ No - 3

A pressure cooker is an example of which of the following?

(A)

Open System

(B)

Closed System

(C)

Isolated System

(D)

None of the mentioned


B
MCQ No - 4

 A system in which energy can crosses the boundary of the system but the mass cannot is known as

(A)

open system

(B)

closed system

(C)

isolated system

(D)

none of these


B
MCQ No - 5

Which of the following is true for a closed 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


B