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

Showing 41 to 48 out of 48 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

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

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

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

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

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

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

48.

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

Showing 41 to 48 out of 48 Questions