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# Test: Basic Concept - 1

## 10 Questions MCQ Test Thermodynamics | Test: Basic Concept - 1

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This mock test of Test: Basic Concept - 1 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam. This contains 10 Multiple Choice Questions for Mechanical Engineering Test: Basic Concept - 1 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Basic Concept - 1 quiz give you a good mix of easy questions and tough questions. Mechanical Engineering students definitely take this Test: Basic Concept - 1 exercise for a better result in the exam. You can find other Test: Basic Concept - 1 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:

The properties which are mass independent are intensive properties and those which are mass dependent are extensive properties.
Volume depends upon the amount of matter present in the system. Hence, it is an 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:

pressure is intensive property.

QUESTION: 10

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

Solution:

A system said to be in thermodynamic equilibrium with surrounding if:

It is in thermal, chemical as well as mechanical equilibrium with the surrounding.

And when system is in thermodynamic equilibrium there won't be any spontaneous change.