HP-QUIZ-13

1. What is the function of a hydraulic actuator?

• A. To generate fluid power
• B. To control fluid power
• C. To store fluid power
• D. To dissipate fluid power

2. What is hydraulic cushioning?

• A. A method of controlling fluid pressure
• B. A method of controlling fluid flow
• C. A method of slowing down a hydraulic cylinder before it reaches the end of its stroke
• D. A method of lubricating hydraulic components

3. What is a hydraulic motor?

• A. An actuator that converts hydraulic energy into mechanical energy
• B. A valve that controls the direction of fluid flow
• C. A pressure switch that monitors hydraulic system pressure
• D. A flow control valve that regulates fluid flow rate

4. What are the three main types of control valves?

• A. Direction control, flow control, and pressure relief
• B. Direction control, flow control, and pressure control
• C. Flow control, pressure control, and pressure relief
• D. Direction control, pressure control, and servo

5. How does a directional control valve work?

• A. It regulates the flow rate of hydraulic fluid
• B. It regulates the pressure of hydraulic fluid
• C. It controls the direction of hydraulic fluid flow
• D. It prevents hydraulic fluid from flowing back into the reservoir

6. What is a proportional valve?

• A. A valve that provides a variable flow rate in response to a control signal
• B. A valve that provides a constant flow rate in response to a control signal
• C. A valve that provides a variable pressure in response to a control signal
• D. A valve that provides a constant pressure in response to a control signal

7. In what type of application might a pressure switch be used?

• A. An application where precise control of hydraulic fluid flow is required
• B. An application where a hydraulic cylinder needs to be slowed down before reaching the end of its stroke
• C. An application where the hydraulic system needs to be monitored for excessive pressure
• D. An application where a hydraulic motor needs to be controlled

8. What is the purpose of a hydraulic reservoir?

• A. To filter hydraulic fluid
• B. To cool hydraulic fluid
• C. To store hydraulic fluid
• D. To regulate hydraulic fluid pressure