Hydraulics Advanced – Level 1 Final Study Guide (2026/2027 A+ Edition)
Comprehensive Practice Exam Study Guide
1) The difference between an unbalanced vane pump and a balanced vane pump is the
A. direction of rotation.
B. type of oil used.
C. inlet and outlet vanes.
D. number of inlet and outlet ports. - (ANSWER)D. number of inlet and outlet ports
2) A pneumatic accumulator for most hydraulic systems is commonly pre-charged with
A. argon.
B. air.
C. nitrogen.
D. oxygen. - (ANSWER)C. nitrogen
3) An open center hydraulic system can best be described as one in which
A. pump oil flow is not circulated until a demand is imposed with operator controls.
B. pump oil flow recirculates freely to the reservoir with controls in the neutral position. - (ANSWER)B.
pump oil flow recirculates freely to the reservoir with controls in the neutral position
skip - (ANSWER)
skip - (ANSWER)
6) To evaluate a hydraulics system, when flow and pressure testing a piece of equipment, the flow rate is
best defined as
,Hydraulics Advanced – Level 1 Final Study Guide (2026/2027 A+ Edition)
Comprehensive Practice Exam Study Guide
A. a measure of the volume of fluid that passes a given point in a given time.
B. a measure of the speed of fluid that passes a given point in a given time.
C. the average speed of a fluid past a given point.
D. a rating of the viscosity of hydraulic oil while in motion past a given point. - (ANSWER)A. a measure of
the volume of fluid that passes a given point in a given time.
7) In a system with a variable displacement pump, the volume of the fluid moved by the pump will
A. decrease when the system pressure drops.
B. stay the same when the system pressure drops.
C. decrease when system demand drops.
D. stay the same when system demand increases. - (ANSWER)C. decrease when system demand drops.
8) When replacing a hydraulic pump you should
A. make certain the new pump has the same rotation, flow and pressure ratings.
B. make sure the threaded holes are compatible or that adapters are available.
C. pour oil into the outlet of the pump to pre-charge and ensure initial lubrication.
D. all the above are correct. - (ANSWER)D. all the above are correct
, Hydraulics Advanced – Level 1 Final Study Guide (2026/2027 A+ Edition)
Comprehensive Practice Exam Study Guide
9) Flow rate is best defined as
A. a measure of the volume (G.P.M.) of fluid that passes a given point in a given time.
B. a measure of the speed (velocity) of fluid that passes a given point in a given time.
C. the average speed of a fluid past a given point.
D. viscosity of liquids in motion. - (ANSWER)A. a measure of the volume (G.P.M.) of fluid that passes a
given point in a given time
skip - (ANSWER)
11) Causes of a "lack of hydraulic power to do the work" problem might well be the fault of
A. hydraulic pump, hydraulic motor or directional control valves.
B. engined, hydraulic pump or drive.
C. hydraulic pump, hydraulic motor or hydraulic actuators.
D. hydraulic pump , hydraulic actuators or directional control valve - (ANSWER)B. engined, hydraulic
pump or drive.
12) When testing a hydraulic system, technicians will monitor and test for
Comprehensive Practice Exam Study Guide
1) The difference between an unbalanced vane pump and a balanced vane pump is the
A. direction of rotation.
B. type of oil used.
C. inlet and outlet vanes.
D. number of inlet and outlet ports. - (ANSWER)D. number of inlet and outlet ports
2) A pneumatic accumulator for most hydraulic systems is commonly pre-charged with
A. argon.
B. air.
C. nitrogen.
D. oxygen. - (ANSWER)C. nitrogen
3) An open center hydraulic system can best be described as one in which
A. pump oil flow is not circulated until a demand is imposed with operator controls.
B. pump oil flow recirculates freely to the reservoir with controls in the neutral position. - (ANSWER)B.
pump oil flow recirculates freely to the reservoir with controls in the neutral position
skip - (ANSWER)
skip - (ANSWER)
6) To evaluate a hydraulics system, when flow and pressure testing a piece of equipment, the flow rate is
best defined as
,Hydraulics Advanced – Level 1 Final Study Guide (2026/2027 A+ Edition)
Comprehensive Practice Exam Study Guide
A. a measure of the volume of fluid that passes a given point in a given time.
B. a measure of the speed of fluid that passes a given point in a given time.
C. the average speed of a fluid past a given point.
D. a rating of the viscosity of hydraulic oil while in motion past a given point. - (ANSWER)A. a measure of
the volume of fluid that passes a given point in a given time.
7) In a system with a variable displacement pump, the volume of the fluid moved by the pump will
A. decrease when the system pressure drops.
B. stay the same when the system pressure drops.
C. decrease when system demand drops.
D. stay the same when system demand increases. - (ANSWER)C. decrease when system demand drops.
8) When replacing a hydraulic pump you should
A. make certain the new pump has the same rotation, flow and pressure ratings.
B. make sure the threaded holes are compatible or that adapters are available.
C. pour oil into the outlet of the pump to pre-charge and ensure initial lubrication.
D. all the above are correct. - (ANSWER)D. all the above are correct
, Hydraulics Advanced – Level 1 Final Study Guide (2026/2027 A+ Edition)
Comprehensive Practice Exam Study Guide
9) Flow rate is best defined as
A. a measure of the volume (G.P.M.) of fluid that passes a given point in a given time.
B. a measure of the speed (velocity) of fluid that passes a given point in a given time.
C. the average speed of a fluid past a given point.
D. viscosity of liquids in motion. - (ANSWER)A. a measure of the volume (G.P.M.) of fluid that passes a
given point in a given time
skip - (ANSWER)
11) Causes of a "lack of hydraulic power to do the work" problem might well be the fault of
A. hydraulic pump, hydraulic motor or directional control valves.
B. engined, hydraulic pump or drive.
C. hydraulic pump, hydraulic motor or hydraulic actuators.
D. hydraulic pump , hydraulic actuators or directional control valve - (ANSWER)B. engined, hydraulic
pump or drive.
12) When testing a hydraulic system, technicians will monitor and test for
