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Types of Hydraulic Fluids Quiz

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Questions and Answers

What type of base fluid is essentially castor oil and alcohol?

Mineral base fluid

Synthetic fluid

Petroleum Based Hydraulic Fluid

Vegetable Based Hydraulic Fluid (correct)

Why should a hydraulic fluid not foam in operation?

To inhibit corrosion

To give the system a spongy action

To ensure air does not get carried into the components (correct)

To chemically attack the seals

What type of seals and hoses are typically used with Mineral base fluid?

Butyl rubber

Ethylene-propylene elastomers

Neoprene (correct)

Natural rubber

Which component in a hydraulic system holds a supply of operational fluid?

Reservoirs Signup and view all the answers

What is the purpose of accumulators in a hydraulic system?

Provide an additional source of hydraulic energy Signup and view all the answers

Which type of valve in a hydraulic system adjusts, regulates, or limits the amount of pressure?

Pressure relief valve Signup and view all the answers

What is the ultimate function of any hydraulic or pneumatic system?

Convert the pressure in the fluid into work Signup and view all the answers

What is the purpose of hydraulic accumulators?

Prevent the pressure from changing rapidly Signup and view all the answers

Which component of a hydraulic system is responsible for producing straight-line movement?

Linear actuators Signup and view all the answers

What is the purpose of seals in hydraulic systems?

Minimize internal leakage Signup and view all the answers

What is the function of the hydraulic pressure manifold in a hydraulic system?

Fill the reservoir with compressed air or nitrogen Signup and view all the answers

Which component is responsible for delivering a properly pressured, continuous supply of fuel in an aircraft?

Hydraulic pump Signup and view all the answers

What type of tank is a bladder fuel tank?

Rubberized bag Signup and view all the answers

What is the purpose of a fuel primer in an aircraft's fuel system?

To vaporize fuel directly into the cylinders prior to starting the engine Signup and view all the answers

Which component in a hydraulic system is responsible for providing a means for shutting off the fuel flow and for fuel transfer?

Hydraulic valve Signup and view all the answers

What property must hydraulic fluid possess in order to flow smoothly through all hydraulic lines with minimal opposition?

Incompressibility Signup and view all the answers

What is the advantage of having an output piston larger than the input piston in a hydraulic system?

Mechanical advantage Signup and view all the answers