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# Basic Concept - 3

## 10 Questions MCQ Test Topicwise Question Bank for GATE Mechanical Engineering | Basic Concept - 3

Description
This mock test of Basic Concept - 3 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam. This contains 10 Multiple Choice Questions for Mechanical Engineering Basic Concept - 3 (mcq) to study with solutions a complete question bank. The solved questions answers in this Basic Concept - 3 quiz give you a good mix of easy questions and tough questions. Mechanical Engineering students definitely take this Basic Concept - 3 exercise for a better result in the exam. You can find other Basic Concept - 3 extra questions, long questions & short questions for Mechanical Engineering on EduRev as well by searching above.
QUESTION: 1

### The sequence of processes that eventually returns the working substance to its original state is known as

Solution:

Thermodynamic cycle can be defined as a series of state changes such that the final and initial state is identical.

QUESTION: 2

### A system and its environment put together constitute

Solution:

An isolated system is one in which there is no interaction of system with the surrounding, for isolated system
δQ = 0
δW= 0
The first law gives
δQ = dU + δW
dU = 0
U = constant
The energy of isolated system is constant.

QUESTION: 3

### Which one ofthe following is extensive property of a thermodynamics system

Solution:

Since volume depends on mass hence it is extensive property.

QUESTION: 4

Which of the following quantities is not the property of the system

Solution:

Since heat transfer is the path function hence it is not the property of the system.

QUESTION: 5

The fundamental unit of enthalpy is

Solution:
QUESTION: 6

A closed thermodynamic system is one in which

Solution:

Open system: Both mass and energy transfer takes place
Closed system: No mass transfer, energy transfer may takes place
Isolated system: Neither energy nor mass transfer takes place.

QUESTION: 7

The value of an extensive property is extensively dependent on

Solution:
QUESTION: 8

A diathermic wall is one which

Solution:
QUESTION: 9

​Which of the following are intensive properties
1. Kinetic energy
2. Specific enthalpy
3. Pressure
4. Entropy
Codes:

Solution:

Specific enthalpy (enthalpy per unit mass) and pressure is intensive property.

QUESTION: 10

For a system to be in thermal equilibrium the system and its surroundings are to be in

Solution: