Oil Hydraulics and Pneumatics (2171912) MCQs

MCQs of Introduction to Pneumatic Systems

Showing 41 to 50 out of 57 Questions
41.

In most plants, why the air compressor is positioned at a distance away from the main shop and installation area?

(a)

Due to noise problem 

(b)

for machine safety and transmission of vibration to other 

(c)

to maintain the pressure drop from the generating point to the point of consumption 

(d)

All of the mentioned 

Answer:

Option (d)

42.

What is/are the function of the air filter?

(a)

To remove foreign matter and enable clean

(b)

To condense and remove water from the air 

(c)

To arrest fine particles and all solid contaminants in the air

(d)

All of the mentioned 

Answer:

Option (d)

43.

The fine mesh wire cloth filter used for 

(a)

to strain heavy foreign particles

(b)

to remove very small particles

(c)

both of the mentioned 

(d)

none of the mentioned 

Answer:

Option (a)

44.

The synthetic material filter used for

(a)

to strain heavy foreign particles

(b)

to remove very small particles

(c)

both of the mentioned 

(d)

all of the mentioned 

Answer:

Option (b)

45.

Which is/are factors affecting the selection of filters?

(a)

Size of particles to be filtered from the system 

(b)

The capacity of the filter

(c)

Accessibility and maintainability 

(d)

All of the mentioned 

Answer:

Option (d)

46.

The function of the baffle plate is 

(a)

to prevents turbulent air from splashing water onto the filter element

(b)

to provide air from splashing water onto the filter element

(c)

both of the mentioned 

(d)

none of the mentioned 

Answer:

Option (a)

47.

The air lubricator used to 

(a)

reduce wear on moving parts

(b)

reduce frictional losses

(c)

protect equipment from corrosion

(d)

all of the mentioned 

Answer:

Option (d)

48.

In a pressure regulator the opening of the valve ______ proportional to the compression of the spring.

(a)

directly

(b)

inversely 

(c)

not 

(d)

none of the mentioned 

Answer:

Option (a)

49.

Which types of pneumatic cylinder prefer for operating strokes of 50 mm?

(a)

Rolling Diaphragm Cylinder 

(b)

Single Acting Cylinder

(c)

Diaphragm Cylinder 

(d)

Gravity Return type

Answer:

Option (c)

50.

Which type of pneumatic cylinder prefers for operating strokes in the range of 50 mm to 800 mm?

(a)

Rolling Diaphragm Cylinder 

(b)

Single Acting Cylinder

(c)

Diaphragm Cylinder 

(d)

Gravity Return type

Answer:

Option (a)

Showing 41 to 50 out of 57 Questions