Hydraulic Actuators and Motors Quiz

What are the components used to convert hydraulic pressure into mechanical movement?

• Pistons and seals

• Gears and levers

• Valves and wipers

• Springs and rods

Which type of actuator is used as a locking device and is hydraulically operated in one direction only?

• Spring-locked

• Double-acting balanced

• Single-acting

• Double-acting unbalanced

In a single-acting actuator, what provides the force to move it in the other direction?

• Spring

• Magnetic force

• Gravity

• Hydraulic pressure

What type of actuator has more fluid in the cylinder when the ram is extended than when it is retracted?

• Spring-locked

• Double-acting balanced

• Single-acting

• Double-acting unbalanced

Which type of actuator is operated hydraulically in both directions and offers greater resistance during extension of the piston rod?

• Single-acting

• Double-acting balanced

• Double-acting unbalanced

• Spring-locked

What is the purpose of a hydraulic lock in an actuator?

• To maintain constant speed

• To prevent fluid leakage

• To hold the actuator in position

• To provide additional force

What is the purpose of a hydraulic motor in an aircraft system?

• To drive generators or pumps

• To provide additional lift

• To operate landing gear

• To control the aircraft's direction

What determines the speed of a hydraulic motor?

• The air pressure in the system

• The size of the aircraft

• The flow rate of oil into it

• The type of fluid used

What is the purpose of a flow control valve in a hydraulic motor?

• To regulate the temperature of the fluid

• To prevent fluid contamination

• To increase the pressure in the system

• To maintain a constant flow of fluid

What happens if fluid is trapped between the actuator piston and a valve?

• The actuator will move freely

• The actuator will be hydraulically locked

• The actuator will overheat

• The actuator will retract automatically