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MCQ's of Industrial Hydraulics & Pneumatics Laboratory: B. One Direction

This document contains 20 multiple choice questions about industrial hydraulics and pneumatics laboratory concepts. The questions cover topics like needle valves, positive displacement pumps, gear pumps, filter locations, accumulator types, quick exhaust valves, and hydraulic symbols. Correct answer options are provided for each question to test understanding of key hydraulic and pneumatic components, systems, and applications.

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yuvarajballal
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1K views3 pages

MCQ's of Industrial Hydraulics & Pneumatics Laboratory: B. One Direction

This document contains 20 multiple choice questions about industrial hydraulics and pneumatics laboratory concepts. The questions cover topics like needle valves, positive displacement pumps, gear pumps, filter locations, accumulator types, quick exhaust valves, and hydraulic symbols. Correct answer options are provided for each question to test understanding of key hydraulic and pneumatic components, systems, and applications.

Uploaded by

yuvarajballal
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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MCQ’s of Industrial Hydraulics & Pneumatics Laboratory

TY (Mechanical)

1. A needle valve controls flow in:

A. both directions.
B. one direction.
C. neither direction.

2. Pressure-compensated flow control valves maintain a constant flow:

A. because they have a special needle valve.


B. when pressure stays under 2000 psi.
C. because they maintain a constant pressure drop across the orifice.

3. A positive-displacement pump:

A. cannot turn if the outlet is blocked.


B. can turn with the outlet blocked.
C. can only turn with the outlet blocked.

4. Gear pumps:

A. can be variable volume.


B. cannot be variable volume.
C. can be pressure compensated.

5. Wobble-plate piston pumps:

A. must rotate in the opposite direction to reverse flow.


B. can reverse flow while turning the same way.
C. cannot reverse flow at anytime.

6. Common filter locations are:

A. suction line, cylinder line and return line.


B. suction line, pressure line and return line.
C. pressure line, return line and pilot line.

7. This symbol represents:

A. a double-rod cylinder
B. an intensifier
C. a hi-lo pump

8. Cavitation is caused by:

A. too little fluid volume at the pump inlet.


B. too much fluid volume at the pump inlet.
C. too much fluid volume at the pump outlet.

9. Air-cooled heat exchangers:

A. are less expensive than water-cooled heat exchangers.


B. are not as efficient as water-cooled heat exchangers.
C. require a water hookup.

10. A hydraulic reservoir is normally sized at:

A. 1 to 2 times pump flow in gpm.


B. 2 to 3 times pump flow in gpm.
C. 4 to 6 times pump flow in gpm

11. The symbol at right shows a line that:

A. returns below fluid level.


B. returns above fluid level
C. is on the same side as the suction line.

12. All heat in a hydraulic system comes from:

A. wasted energy.
B. too large electric motor.
C. oversize piping and valves.

13. A weight-loaded accumulator:

A. loses pressure as fluid discharges


B. gains pressure as fluid discharges
C. stays at the same pressure as fluid discharges

14. A spring-loaded accumulator:

A. loses pressure as fluid discharges


B. gains pressure as fluid discharges
C. stays at the same pressure as fluid discharges

15. Gas charged accumulators use:


A. oxygen
B. nitrogen
C. argon

16. The most common accumulator application is:

A. supplementing pump flow


B. making up for system leaks
C. providing an emergency power supply

17. Quick exhaust valves allow:

A. air to exit the cylinder rapidly


B. oil to exit the cylinder rapidly
C. both of the above

18. This is a symbol for a:

A. temperature gauge
B. pressure gauge
C. flow meter

19. Shuttle valves allow flow in.

A. one direction only


B. both directions
C. either direction after reaching set pressure

20. A ram cylinder can only have_________________in one direction.

A. movement
B. force
C. rotation

Prepared By
Y.P.Ballal

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