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# Test: Compressors - 1

## 10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering | Test: Compressors - 1

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

### Which of the following is the non-positive displacement compressor?

Solution:

Example of non-positive displacement compressor:
(i) Centrifugal compressor
(ii) Axial flow compressor
(iii) Dynamic compressor

QUESTION: 2

### Reciprocating compressors are usually preferred for

Solution:

The reciprocating compressors are.suitable for low discharge (maximum limit 50 m3/min) at high delivery pressures (as high as 1000 bar).

QUESTION: 3

### Reciprocating compressors have a maximum capacity of

Solution:
QUESTION: 4

The capacity of a reciprocating air compressor expressed in m3/min refers to volume of

Solution:
QUESTION: 5

Free air is the air at

Solution:
QUESTION: 6

In a reciprocating compressor, one should aim at compressing the air

Solution:

Isothermal compression requires minimum power input.

QUESTION: 7

Isothermal compression through most efficient cannot be realized in practice because that necessitates

Solution:

Maintaining constant temperature requires large quantity of coolant water. Use of large coolant water makes compressor bulky and decreases the engine speed.

QUESTION: 8

The clearance volume in a reciprocating compressor is provided to

Solution:

Most suitable choice is (b). Increase of clearance volume decrease the volumetric efficiency, so option (c) is wrong.

QUESTION: 9

Which of the following is not the advantages of multi-stage compression?

Solution:

There is reduction in work required per stroke and therefore the total driving power is also reduced.

QUESTION: 10

Air motor finds application in following except

Solution:

Hair dryer is either battery or electrically powered. Compressed air is used in a wide variety of applications where the use of electric motors or S.l. engines is not permissible and where high safety is required to bemet as in mining applications. Pneumatic breakers, picks, spades, rammers, vibrators, riveters etc. form a range of hand tools having wide use in construction work.