Oil Hydraulics and Pneumatics (2171912) MCQs

MCQs of Pneumatic Circuits

Showing 11 to 20 out of 39 Questions
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11.

Indirect control of a double-acting cylinder using the memory valve is called a memory circuit because 

(a)

it uses a 5/2 way double pilot memory valve
(b)

it uses a 5/3 way double pilot memory valve
(c)

it uses a 3/4 way double pilot memory valve
(d)

it uses a 3/2 way double pilot memory valve
Answer:

Option (a)

12.

Which valve used in indirect control of the double-acting cylinder as a memory valve?

 

(a)

Double piloted 4/2 way valve
(b)

Double piloted 3/2 way valve
(c)

Double piloted 3/3 way valve
(d)

Double piloted 3/4 way valve
Answer:

Option (a)

13.

Supply air throttling is the method of speed control of 

(a)

single-acting cylinder
(b)

double-acting cylinder
(c)

both of the mentioned 
(d)

none of the mentioned 
Answer:

Option (b)

14.

Exhaust air throttling is the method of speed control of

(a)

double-acting cylinder
(b)

single-acting cylinder
(c)

both of the mentioned 
(d)

none of the mentioned 
Answer:

Option (a)

15.

Supply air throttling is a method of speed control of a double-acting cylinder is also called 

(a)

meter-in circuit 
(b)

meter-out circuit 
(c)

both of the mentioned  
(d)

none of the mentioned  
Answer:

Option (a)

16.

Exhaust air throttling is a method of speed control of the double-acting cylinder is also known as 

(a)

meter-in circuit
(b)

meter-out circuit
(c)

both of the mentioned 
(d)

none of the mentioned  
Answer:

Option (b)

17.

In exhaust air throttling _______________ are installed between the cylinder and the main valve in such a way that the exhaust air leaving the cylinder is throttled in both directions of the motion of the cylinder.

(a)

throttle relief valves
(b)

pressure relief valve 
(c)

flow control valve 
(d)

pressure reducing valve
Answer:

Option (a)

18.

Which method is practically used for the speed control of double-acting cylinders?

(a)

Exhaust air throttling
(b)

Supply air throttling
(c)

Both of the mentioned 
(d)

None of the mentioned 
Answer:

Option (a)

19.

Give the significance of every digit used to denote a flow control valve 2.03

A. 3 denotes the forward movement
B. 3 denotes the backward movement
C. 2 denotes the cylinder number
D. 2 denotes the flow control valve number

(a)

A and C
(b)

A and D
(c)

B and D
(d)

B and C
Answer:

Option (d)

20.

Which of the following notations is used to represent a regulator unit?

(a)

3.0
(b)

0.3
(c)

3
(d)

None of the mentioned 
Answer:

Option (b)

Showing 11 to 20 out of 39 Questions
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