7.2.1.2. Hydraulic Actuators

Try these first

1. 1.

   What is a hydraulic actuator?

   Hint

   Think about how it can lift heavy things.

2. 2.

   Name one advantage of hydraulic actuators.

   Hint

   Consider where you would see very heavy lifting.

3. 3.

   What principle do hydraulic actuators operate on?

   • Bernoulli's Principle
   • Pascal's Law
   • Newton's Law

   Hint

   Consider how pressure behaves in liquids.

4. 4.

   True or False: Hydraulic actuators are less effective than electric actuators in lifting heavy loads.

   • True
   • False

   Hint

   Compare the capabilities of both types of actuators.

5. 5.

   A construction site needs to lift a 20,000 N load using a hydraulic actuator. If the actuator's cylinder has a radius of 0.1 m, what pressure is needed?

   Hint

   Remember to calculate the area first using the radius.

6. 6.

   Explain the potential environmental impacts of hydraulic systems if leaks occur in an outdoor construction scenario.

   Hint

   Consider what happens if polluted fluids enter the ecosystem.