Oil Hydraulics and Pneumatics (2171912) MCQs

MCQs of Hydraulic Valves and Hydraulic System Accessories

Showing 1 to 10 out of 44 Questions
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1.

Which valve is used to adjust the pressure differential across the oil jet and control the oil flow rate in lubricator?

(a)

Needle valve
(b)

Poppet valve 
(c)

Pressure Relief Valve 
(d)

None of the above
Answer:

Option (a)

2.

The Single Acting Cylinders are used for

(a)

clamping
(b)

lifting 
(c)

embossing
(d)

All of the above
Answer:

Option (d)

3.

Which of the following is not the pressure control valve?

(a)

Safety valve
(b)

Sequence valve
(c)

Shut-off valve
(d)

Reducing valve
Answer:

Option (c)

4.

What is the function of the pressure switch?

(a)

Pressure switch is used to start a motor
(b)

Pressure switch is used to stop a motor
(c)

Pressure switch is used to de-energize a solenoid
(d)

All of the given
Answer:

Option (d)

5.

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

1. Reverse flow of fluid is not possible

2. Input pressure for a throttle valve is more than the output pressure

3. The actuator speed can be reduced by a throttle valve

4. Correct flow control valve for a particular application can be selected on the basis of pressure drop specified

(a)

1, 2 & 3
(b)

2, 3 & 4
(c)

1, 3 & 4
(d)

All of the given
Answer:

Option (b)

6.

A pressure relief valve can be______.

(a)

Direct operated
(b)

Pilot operated
(c)

Solenoid operated
(d)

All of the given
Answer:

Option (d)

7.

Check valve is a type of_____.

(a)

Pressure reducing valve
(b)

Pressure relief valve
(c)

Directional control valve
(d)

None of the given
Answer:

Option (c)

8.

What is the notation used for the sequence of operations mentioned below?

1. Cylinder A undergoes forward stroke

2. Cylinder B undergoes forward stroke

3. Cylinder A undergoes backward stroke

4. Cylinder B undergoes backward stroke

(a)

A– B– A+ B+
(b)

A+ B– A+ B–
(c)

A+ B+ A– B–
(d)

A+ B–  A+ B–
Answer:

Option (c)

9.

Overlapping of signals in pneumatic systems can be avoided by using

(a)

Rolling lever valve
(b)

Idle roller lever valve
(c)

Both of the given
(d)

None of the given
Answer:

Option (c)

10.

What is a pressure sequence valve?

(a)

It is a combination of an adjustable pressure relief valve and directional control valve
(b)

It is a combination of a nonadjustable pressure relief valve and directional control valve
(c)

It is a combination of adjustable pressure reducing valve and check valve
(d)

It is a combination of adjustable pressure reducing valve and flow control valve
Answer:

Option (a)

Showing 1 to 10 out of 44 Questions
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