MCQs of Air Preparation and Service Unit (Oil Hydraulics and Pneumatics-3151913)

MCQ No - 1

Which type of compressor requires a reservoir for compressed air and why?

(A)

Rotary Compressor to avoid pulsating effect

(B)

Reciprocating Compressor to avoid pulsating effect

(C)

Both Rotary and Reciprocating Compressors to avoid pulsating effect

(D)

None of the mentioned

B

MCQ No - 2

Which of the following factors is considered while selecting a compressor?

(A)

Type of oil filter required

(B)

Volumetric efficiency

(C)

Viscosity of the liquids used

(D)

All of the mentioned

B

MCQ No - 3

The function of _________ is to convert high kinetic energy of gases into pressure energy.

(A)

impeller

(B)

casing

(C)

diffuser

(D)

None of the mentioned

C

MCQ No - 4

Reciprocating compressor is best suited for

(A)

Small quantity of air at high pressure

(B)

Small quantity of air at low pressure

(C)

Large quantity of air at low pressure

(D)

Large quantity of air at high pressure

A

MCQ No - 5

Rotary compressor is best suited for

(A)

Large quantity of air at high pressure

(B)

Small quantity of air at high pressure

(C)

Small quantity of air at low pressure

(D)

Large quantity of air at low pressure

D

Oil Hydraulics and Pneumatics (3151913) MCQ