Hydraulics and pneumatics Study guides, Class notes & Summaries

Hydraulics and Pneumatics Quiz 2 with Complete Solutions Graded A+ The primary purpose of a relief valve is to _____ system pressure. (HL4 1-1) - Answer-limit When using a needle valve to control speed, excess pump flow is directed over the _____ valve. (HL4 1-2) - Answer-relief When operating in a flow control circuit, the speed of the actuator _____ when the flow through the relief valve increases. (HL4 1-3) - Answer-decreases The two types of relief valves are _____ and pilot-operat...

The rod - ️️What explains why the extracting speed and retracting speed are different on a double-sided cylinder? 10 inches - ️️What cylinder bore area is necessary if you have 80 PSI and 800 Lbs of force? Eye mount - ️️You're going to install an actuator that's going to operate sealing jaws on a factory machine. The jaw requires something to pivot up and down, What type of mounting is best for this process? Binding or Friction - ️️What is the probable effect of side l...

A remote-controlled, pilot-operated ___ valve is type of pilot-operated relief valve that uses one or more external pilot valves to set the pressure at which the relief valve will open. - ️️relief A ___ valve is a normally closed pressure control valve that prevents a hydraulic motor from running away, or speeding out of control. - ️️brake A ___ pressure control valve is a type of pressure control valve that is remote controlled and, instead of a spring, uses pilot pressure set at ...

Pascal's Law deals with measuring the amount of force that acts on a unit of area. What is the formula that represents this? - ️️F=AxP Volume is the amount of space a fluid occupies. the formula we use to express this is? - ️️V=AxD A gain in mechanical advantage is achieved using? - ️️Different sized pistons and constant pressure. Viscosity is ? - ️️The internal resistance to flow The flash point is the temperature at which a liquid gives off vapor in sufficient quan...

Hydraulics and Pneumatics Test Questions with Answers Connection between pneumatic components is made using quick connect fittings that could be what? - Answer-Connected and disconnected when they are not under pressure. Air bearing are fluid power actuators that reduce or eliminate what? - Answer-friction They convert pressure into a dial reading. - Answer-pressure gauges Which gas is commonly used in pneumatics? - Answer-Air Which two properties of compressed air make possible smo...

Using a hand pump, pressure of 100 PSI has been built up in a hydraulic system. The hand pump piston is 1 inch in diameter. A 1/2-inch line connects the hand pump to an actuating cylinder 2 inches in diameter. What is the pressure in the line between the hand pump and the actuator? - ️️100 PSI. A common cause of slow actuation of hydraulic components is - ️️internal leakage in the actuating unit. In a hydraulic system that has a reservoir pressurized with turbine-engine compressor ...

the fluid conditioning system of hydraulic powered equipment provides fluid that is clean and maintained in an acceptable operating ___________. - ️️Conditions What are three components that contribute to contaminants in the hydraulic fluid as they wear? - ️️Water, air , heat ________ percent or more of the prime mover horsepower is converted into heat that raises fluid temperature in a hydraulic system? - ️️20 what is the best approach to assure a clean operating system? - ...

compressed nitrogen is released to the landing gear selector valve during emergency extension pneudraulic pressure activates the ______ valve. - ️️Dump Valve what are incorporated invarious locations pneumatic systems through purposes to absorb moisture that collects in the lines and other parts in the system - ️️chemical dryers pneumatic systems do not utilize resevoirs, hand pumps, engine driven or electrical driven pumps, accumulators or regulators to building normal pressure - ...

Pneumatics comes from the geek word ________________, which means _______________ - ️️Pneuma, "breath or wind" It is basically the use of under pressure gas that helps in performing a certain work in science and technology - ️️Pneumatics _____________ is the transmission and control of forces and movements by means of compressed air - ️️Pneumatics ___________ is the energy transmitted and controlled by means of a pressurized fluid, either liquid or gas. - ️️Fluid power...