HP-QUIZ-11

What is the advantage of using fluid power systems?

• High efficiency

• Low maintenance

• High installation cost

• High noise level

Which of the following is not a type of hydraulic pump?

• Gear pump

• Centrifugal pump

• Vane pump

• Piston pump

What is the principle behind Pascal's law?

• Pressure applied to an enclosed fluid

• Pressure exerted by a fluid

• Temperature of a fluid

• Volume of a fluid

Which type of hydraulic pump can deliver a constant volume of fluid regardless of the pressure in the system?

• Fixed displacement pump

• Variable displacement pump

• Centrifugal pump

• Gear pump

What is the purpose of a hydraulic actuator?

• To convert fluid power into mechanical power

• To control the flow of fluid in the system

• To filter the fluid in the system

• To regulate the pressure of the fluid

What is the function of a hydraulic motor?

• To convert fluid power into rotational power

• To control the direction of fluid flow

• To regulate the pressure of the fluid

• To filter the fluid in the system

A hydraulic cylinder has a bore diameter of 50 mm and a stroke length of 200 mm. If the system pressure is 10 MPa, what is the force generated by the cylinder?

• 7.85 kN

• 9.81 kN

• 12.56 kN

• 15.71 kN

A hydraulic system uses a fixed displacement pump with a flow rate of 25 L/min. What is the time required to move a cylinder with a displacement of 0.5 L?

• 1 second

• 2 seconds

• 20 seconds

• 50 seconds

What is the basic principle behind hydraulic systems?

• Bernoulli's principle

• Pascal's law

• Archimedes' principle

• Newton's third law

Which of the following is a type of fluid used in hydraulic systems?

• Air

• Water

• Oil

• All of the above