Oil Hydraulics and Pneumatics (2171912) MCQs

MCQs of Design of Hydraulic Circuits

Showing 1 to 10 out of 46 Questions
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1.

In the circuit design, what is the function of a flow control valve?

(a)

Flow control valve changes the direction of flow
(b)

Flow control valve can adjust the flow rate of fluid
(c)

Both of the mentioned 
(d)

None of the mentioned 
Answer:

Option (b)

2.

What do the numbers in the 4/2 valve mean?

(a)

4 positions and 2 ways
(b)

4 ways and 2 positions
(c)

4 ways and 4 positions
(d)

4 positions and 3 ways
Answer:

Option (b)

3.

Which type of solenoid has more chances of coil failure?

(a)

AC solenoid
(b)

DC solenoid
(c)

Both AC and DC solenoids
(d)

None of the mentioned 
Answer:

Option (a)

4.

Which stage in two stage direction control valve is solenoid operated?

(a)

Main stage direction control valve
(b)

Pilot stage direction control valve
(c)

Both stages in two-stage direction control are solenoid operated
(d)

None of the mentioned 
Answer:

Option (b)

5.

Check valve is a type of

(a)

pressure reducing valve
(b)

pressure relief valve
(c)

directional control valve
(d)

none of the mentioned 
Answer:

Option (c)

6.

A pressure relief valve can be

(a)

direct operated
(b)

pilot operated
(c)

solenoid operated
(d)

all of the mentioned 
Answer:

Option (d)

7.

Which of the following statements are true for the throttle valve?

  1. The reverse flow of fluid is not possible
  2. The input pressure for a throttle valve is more than the output pressure
  3. The actuator speed can be reduced by a throttle valve
  4. The correct flow control valve for a particular application can be selected on the basis of pressure drop specified
(a)

1, 2 and 3
(b)

1, 3 and 4
(c)

2, 3 and 4
(d)

All of the mentioned 
Answer:

Option (c)

8.

How is reverse flow possible in pilot operated check valve?

(a)

Spring force lifts the ball due to which reverse flow is possible
(b)

Fluid pressure lifts the ball due to which reverse flow is possible
(c)

Both of the mentioned 
(d)

None of the mentioned 
Answer:

Option (b)

9.

In-circuit designing, what is the difference between the pressure relief valve and pressure reducing valve?

(a)

The pressure reducing valve is connected between the pump and tank line while pressure relief valve is connected between DCV and branch circuit
(b)

The pressure relief valve is always normally opened
(c)

The pressure reducing valve is connected between the DCV and branch circuit while the pressure relief valve is connected between pump and tank
(d)

None of the mentioned 
Answer:

Option (c)

10.

Why is/are bleed off circuits used?

(a)

Bleed off circuits are used to reduce the speed of the actuator
(b)

Bleed off circuit is used to restrict the flow of fluid into the hydraulic cylinder
(c)

Bleed-off circuit is used to restrict the flow of fluid out of the hydraulic cylinder
(d)

None of the mentioned 
Answer:

Option (a)

Showing 1 to 10 out of 46 Questions
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