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Questions and Answers
What is the main component used in fluid power systems to convey pressurized fluid to actuators?
What is the main component used in fluid power systems to convey pressurized fluid to actuators?
- Fluid pump (correct)
- Rotary modulation
- Solid state devices
- Variable resistance
Which principle states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid?
Which principle states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid?
- Archimedes' Principle
- Newton's Third Law
- Pascal's Law (correct)
- Boyle's Law
What is the behavior of liquid in a hydraulic system under pressure?
What is the behavior of liquid in a hydraulic system under pressure?
- It behaves like a solid (correct)
- It evaporates quickly
- It behaves like a gas
- It compresses significantly
Which type of system uses pressurized air to transmit power from one location to another?
Which type of system uses pressurized air to transmit power from one location to another?
What is an advantage of using pneumatic systems over hydraulic systems?
What is an advantage of using pneumatic systems over hydraulic systems?
Which of the following is a disadvantage commonly associated with pneumatic systems?
Which of the following is a disadvantage commonly associated with pneumatic systems?
What type of fluid does oil hydraulic employ?
What type of fluid does oil hydraulic employ?
Which type of hydraulic systems is characterized by solenoid-operated valves?
Which type of hydraulic systems is characterized by solenoid-operated valves?
What is the distinguishing feature of pneumatic systems?
What is the distinguishing feature of pneumatic systems?
Which type of hydraulic systems often have manually operated valves?
Which type of hydraulic systems often have manually operated valves?
In terms of location, where do mobile hydraulic systems operate?
In terms of location, where do mobile hydraulic systems operate?
What type of systems release compressed air to the atmosphere after performing work?
What type of systems release compressed air to the atmosphere after performing work?
What is the function of the FCV in a hydraulic system?
What is the function of the FCV in a hydraulic system?
Which component is essential in a pneumatic system to maintain a constant force?
Which component is essential in a pneumatic system to maintain a constant force?
What is a notable advantage of pneumatic systems over hydraulic systems?
What is a notable advantage of pneumatic systems over hydraulic systems?
What is a common disadvantage associated with pneumatic systems?
What is a common disadvantage associated with pneumatic systems?
In the context of hydraulics and pneumatics, what is a difference between the two systems?
In the context of hydraulics and pneumatics, what is a difference between the two systems?
Which property of fluid is defined as mass per unit volume?
Which property of fluid is defined as mass per unit volume?
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Study Notes
Fluid Power Systems
- Hoses and tubes are used to convey pressurized fluid to actuators in fluid power systems.
Pressure Transmission
- Pascal's Principle states that a pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid.
Liquid Behavior
- In a hydraulic system under pressure, liquid remains incompressible and its volume does not change.
Pneumatic Systems
- Pneumatic systems use pressurized air to transmit power from one location to another.
Pneumatic vs Hydraulic
- An advantage of using pneumatic systems over hydraulic systems is that pneumatic systems are cleaner and safer.
- A disadvantage commonly associated with pneumatic systems is that they tend to be noisy.
Hydraulic Systems
- Oil hydraulic systems employ oil as the fluid.
- Electrohydraulic systems are characterized by solenoid-operated valves.
Pneumatic System Characteristics
- The distinguishing feature of pneumatic systems is that they use compressible fluids.
- Manual hydraulic systems often have manually operated valves.
Mobile Hydraulic Systems
- Mobile hydraulic systems operate in mobile equipment such as cranes, excavators, and trucks.
System Function
- Open-center systems release compressed air to the atmosphere after performing work.
- The function of the FCV (Flow Control Valve) in a hydraulic system is to regulate fluid flow.
Pneumatic Components
- A pressure regulator is an essential component in a pneumatic system to maintain a constant force.
System Comparison
- A notable advantage of pneumatic systems over hydraulic systems is that they are lighter and more versatile.
- A common disadvantage associated with pneumatic systems is that they can be less precise.
- The main difference between hydraulic and pneumatic systems is that hydraulic systems use incompressible fluids while pneumatic systems use compressible fluids.
Fluid Properties
- Density is the property of fluid defined as mass per unit volume.
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