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MCQ's On Mastering Hydraulics: A Comprehensive Guide
MAMQ & A
Marine Geek
2 min read
HYDRAULICS
1. Check valves in the hydraulic circuit may be used as Pre-tensioning by creating a certain backpressure
TRUE
FALSE
N/A
N/A
2. In hydraulic circuit, pressure filters are placed at
pump inlet
throughout system
hydraulic motor inlet
All of the above
3. In hydraulic circuit, purpose of "Counterbalance Valve" is
provide flow resistance in specific situations
for balancing the fluid pressure
for balancing the fluid volume
None of the above
4. In case of hydraulic circuit a disadvantage of throttle valves is that at varying loads a change in pressure drop will change the flow; thus, the speed of the moving actuator will also be affected.
TRUE
FALSE
N/A
N/A
5. A directional control valve comprises at least two spool (switching) positions and two working ports.
TRUE
FALSE
N/A
N/A
6. Directional control valves are different than switching valves.
TRUE
FALSE
N/A
N/A
7. In hydraulic circuit, purpose of "Hydraulic Pump" is
to produce pressure
to produce flow
to rehulate the flow
All of the above
8. In hydraulic circuit, purpose of "Check Valve" is
to keep check on the operation of the system
prevent the backflow of liquid
to increase the system pressure
All of the above
9. The function of a directional control valve is determined by the number of working ports (excluding control ports) and the number of spool positions.
TRUE
FALSE
N/A
N/A
10. In hydraulic circuit, purpose of "Hydraulic cylinders" is
fill up the system
to transfer fluid
convert the fluid pressure into mechanical force
None of the above
11. In hydraulic circuit, suction filters are placed at
pump inlet
hydraulic motor inlet
3 way valve inlet
None of the above
12. The most common directional control valve is a 4/3-way valve, which means the valve has four working ports and three spool positions, in accordance with DIN ISO 1219.
TRUE
FALSE
N/A
N/A
13. Various types of actuators provide power to shift the spool and springs are normally used to return the spool when the actuator is de-energised.
TRUE
FALSE
N/A
N/A
14. In case of hydraulic circuit flow control valves manage the flow by decreasing or increasing the opening at the
TRUE
FALSE
N/A
N/A
15. Check valves in the hydraulic circuit may be used as protection of hydraulic components against pressure surges
TRUE
FALSE
N/A
N/A
16. In case of directional control valve actuators always push and never pull the spool.
TRUE
FALSE
N/A
N/A
17. In case of hydraulic circuit flow rate determines the rate of energy transfer at any given pressure.
TRUE
FALSE
N/A
N/A
18. In the spool valve the spool is moved with respect to the valve body, this opens and closes internal flow galleries to control fluid flow.
TRUE
FALSE
N/A
N/A
19. Sequence valves in the hydraulic circuit are used to direct the flow to a secondary circuit.
TRUE
FALSE
N/A
N/A
20. Pressure control valves in the hydraulic circuit are same as sequence valves
TRUE
FALSE
N/A
N/A
21. In hydraulic circuit, return filters are placed at
throughout system
hydraulic motor inlet
before reservoir
All of the above
22. The purpose of flow control in a hydraulic system is to regulate speed.
speed
pressure
level
flow
23. Directional control valves are available as spool valves, poppet valves or rotary slide valves.
spool valves.
poppet valves.
rotary slide valves.
All of the above