1|Page
Washington Wind Turbine Technician Certification
Examination — Level 2 Exam||Verified Exam|| Practice
Questions And Correct Answers (Verified Answers)
Plus Rationale 2026/2027 Q&A| Instant Download Pdf
A pressure regulator valve could fail to regulate if it has a
broken __________.
Directional control tube
Starter
Spring
Motor - Answer-Spring
When the fluid viscosity is too high or low for the pump,
cavitation and dirty fluid are associated with __________.
Valves operating out of sequence
Noisy valves
Air in the system
Noisy pumps - Answer-Noisy pumps
Probable causes of low pump discharge pressure include
__________.
Electric motor is operated at 2% over design RPM
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Improperly set relief valve
Wrong pump type
Wrong type valves - Answer-Improperly set relief valve
If the system is operating at design pressure and a piston
actuator does not move, what might be the problem?
A leaking piston ring
The directional valves are operating properly
The system pressure is too high
Load is too low - Answer-A leaking piston ring
A bent piston rod typically causes __________.
Jerky movement
The motor to overload
The piston to rotate in the wrong direction
The relief valve to open - Answer-Jerky movement
Common pump symptoms include __________.
Wrong voltage
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Low discharge pressure
Sparks
Single phasing - Answer-Low discharge pressure
Petroleum multi-grade oil can breakdown to a
¿¿¿¿¿¿____________ grade from high mechanical
stresses.
Higher viscosity
Lower viscosity
Lower cloud point
Higher flash point - Answer-Lower viscosity
The fluid power pump is running but has no flow. The
problem may be __________.
Reservoir is over full
Cooler not operating
Properly set relief valve
Low oil level - Answer-Low oil level
Failures in hydraulic systems __________ symptoms.
, 4|Page
Will have the same
Will always have similar
Will never have similar
May have similar - Answer-May have similar
Which of the following could cause the pump to be noisy?
Excessive heat
All of the answers are correct
Dirty fluid
Cavitation - Answer-All of the answers are correct
What would cause an actuator a fluid power motor to not
produce rated torque?
Bearing cooling water too low
Suction valve open too wide
Torque-o-meter broken
Oil viscosity too high - Answer-Oil viscosity too high
A cause of low fluid power system pressure is
__________.
Washington Wind Turbine Technician Certification
Examination — Level 2 Exam||Verified Exam|| Practice
Questions And Correct Answers (Verified Answers)
Plus Rationale 2026/2027 Q&A| Instant Download Pdf
A pressure regulator valve could fail to regulate if it has a
broken __________.
Directional control tube
Starter
Spring
Motor - Answer-Spring
When the fluid viscosity is too high or low for the pump,
cavitation and dirty fluid are associated with __________.
Valves operating out of sequence
Noisy valves
Air in the system
Noisy pumps - Answer-Noisy pumps
Probable causes of low pump discharge pressure include
__________.
Electric motor is operated at 2% over design RPM
,2|Page
Improperly set relief valve
Wrong pump type
Wrong type valves - Answer-Improperly set relief valve
If the system is operating at design pressure and a piston
actuator does not move, what might be the problem?
A leaking piston ring
The directional valves are operating properly
The system pressure is too high
Load is too low - Answer-A leaking piston ring
A bent piston rod typically causes __________.
Jerky movement
The motor to overload
The piston to rotate in the wrong direction
The relief valve to open - Answer-Jerky movement
Common pump symptoms include __________.
Wrong voltage
,3|Page
Low discharge pressure
Sparks
Single phasing - Answer-Low discharge pressure
Petroleum multi-grade oil can breakdown to a
¿¿¿¿¿¿____________ grade from high mechanical
stresses.
Higher viscosity
Lower viscosity
Lower cloud point
Higher flash point - Answer-Lower viscosity
The fluid power pump is running but has no flow. The
problem may be __________.
Reservoir is over full
Cooler not operating
Properly set relief valve
Low oil level - Answer-Low oil level
Failures in hydraulic systems __________ symptoms.
, 4|Page
Will have the same
Will always have similar
Will never have similar
May have similar - Answer-May have similar
Which of the following could cause the pump to be noisy?
Excessive heat
All of the answers are correct
Dirty fluid
Cavitation - Answer-All of the answers are correct
What would cause an actuator a fluid power motor to not
produce rated torque?
Bearing cooling water too low
Suction valve open too wide
Torque-o-meter broken
Oil viscosity too high - Answer-Oil viscosity too high
A cause of low fluid power system pressure is
__________.
