ASA Study for Hydraulics class Exam
Questions And Answers
1. (8388) Which allows free fluid flow in one direction and no fluid
flow in the other direction?
a. Check valve.
b. Metering piston.
c. Shutoff valve. - - -
correct answer ✅a. Check valve.
2. (8389) Select the valve used in a hydraulic system that directs
pressurized fluid to one end of an actuating cylinder and
simultaneously directs return fluid to the reservoir from the other
end.
a. Sequence.
b. Shuttle.
c. Selector. - - -
correct answer ✅c. Selector.
3. (8390) What function does the absolute pressure regulator
perform in the pneumatic power system?
,ASA Study for Hydraulics class Exam
Questions And Answers
a. Regulates the compressor outlet air pressure to stabilize the
system pressure.
b. Regulates the pneumatic system pressure to protect the
moisture separator from internal explosion.
c. Regulates the compressor inlet air to provide a stabilized source
of air for the compressor. - - -
correct answer ✅c. Regulates the compressor inlet air to provide a
stabilized source of air for the compressor.
4. (8391) (1) Relief valves are used in pneumatic systems as
damage-preventing units.
(2) Check valves are used in both hydraulic and pneumatic systems.
Regarding the above statements,
a. both No. 1 and No. 2 are true.
b. neither No. 1 nor No. 2 is true.
c. only No. 1 is true. - - -
correct answer ✅a. both No. 1 and No. 2 are true.
5. (8392) One of the distinguishing characteristics of an open-center
selector valve used in a hydraulic system is that
, ASA Study for Hydraulics class Exam
Questions And Answers
a. fluid flows through the valve in the OFF position.
b. fluid flows in three directions in the ON position.
c. a limited amount of fluid flows in one direction and no fluid flows
in the opposite direction. - - -
correct answer ✅a. fluid flows through the valve in the OFF
position.
6. (8394) Relief valves are used in pneumatic systems
a. for one direction flow control.
b. to reduce the rate of airflow.
c. as damage-preventing units. - - -
correct answer ✅c. as damage-preventing units.
7. (8398) The component in the hydraulic system that is used to
direct the flow of fluid is the
a. check valve.
b. orifice check valve.
Questions And Answers
1. (8388) Which allows free fluid flow in one direction and no fluid
flow in the other direction?
a. Check valve.
b. Metering piston.
c. Shutoff valve. - - -
correct answer ✅a. Check valve.
2. (8389) Select the valve used in a hydraulic system that directs
pressurized fluid to one end of an actuating cylinder and
simultaneously directs return fluid to the reservoir from the other
end.
a. Sequence.
b. Shuttle.
c. Selector. - - -
correct answer ✅c. Selector.
3. (8390) What function does the absolute pressure regulator
perform in the pneumatic power system?
,ASA Study for Hydraulics class Exam
Questions And Answers
a. Regulates the compressor outlet air pressure to stabilize the
system pressure.
b. Regulates the pneumatic system pressure to protect the
moisture separator from internal explosion.
c. Regulates the compressor inlet air to provide a stabilized source
of air for the compressor. - - -
correct answer ✅c. Regulates the compressor inlet air to provide a
stabilized source of air for the compressor.
4. (8391) (1) Relief valves are used in pneumatic systems as
damage-preventing units.
(2) Check valves are used in both hydraulic and pneumatic systems.
Regarding the above statements,
a. both No. 1 and No. 2 are true.
b. neither No. 1 nor No. 2 is true.
c. only No. 1 is true. - - -
correct answer ✅a. both No. 1 and No. 2 are true.
5. (8392) One of the distinguishing characteristics of an open-center
selector valve used in a hydraulic system is that
, ASA Study for Hydraulics class Exam
Questions And Answers
a. fluid flows through the valve in the OFF position.
b. fluid flows in three directions in the ON position.
c. a limited amount of fluid flows in one direction and no fluid flows
in the opposite direction. - - -
correct answer ✅a. fluid flows through the valve in the OFF
position.
6. (8394) Relief valves are used in pneumatic systems
a. for one direction flow control.
b. to reduce the rate of airflow.
c. as damage-preventing units. - - -
correct answer ✅c. as damage-preventing units.
7. (8398) The component in the hydraulic system that is used to
direct the flow of fluid is the
a. check valve.
b. orifice check valve.
