Hydraulic Cylinders and Actuators Quiz

Hydraulic cylinders are among the most common and straightforward hydraulic actuators. They consist of a cylindrical barrel, a piston, and a piston rod.

The hydraulic fluid is pressurized to extend or retract the piston, generating linear motion.

The two main types of hydraulic cylinders are the Hydraulic Single Acting Cylinders and the Hydraulic Double Acting Cylinders.

<p>Hydraulic motors convert hydraulic pressure and flow into rotational motion.</p> Signup and view all the answers

<p>Gear, vane, and piston motors are often used in hydraulic rotary motion.</p> Signup and view all the answers

<p>Hydraulic rotary actuators convert hydraulic pressure into rotary motion.</p> Signup and view all the answers

<p>Hydraulic accumulators store hydraulic energy under pressure.</p> Signup and view all the answers

<p>Hydraulic vibration dampers are designed to dampen or absorb vibrations in a hydraulic system.</p> Signup and view all the answers

<p>A single acting cylinder extends by pressure from a pump and then retracts by the weight of the load or by an inbuilt spring.</p> Signup and view all the answers

<p>A double acting cylinder uses hydraulic power to both extend and retract.</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>The main function of the cylinder body is to contain cylinder pressure.</p> Signup and view all the answers

<p>The cylinder barrel is mostly made from honed tubes.</p> Signup and view all the answers

<p>The main function of the cap is to enclose the pressure chamber at one end.</p> Signup and view all the answers

<p>The main function of the head is to enclose the pressure chamber from the other end.</p> Signup and view all the answers

<p>The main function of the piston is to separate the pressure zones inside the barrel.</p> Signup and view all the answers

<p>The piston rod is typically a hard chrome-plated piece of cold-rolled steel that attaches to the piston and extends from the cylinder through the rod-end head.</p> Signup and view all the answers

<p>The cylinder head is fitted with seals to prevent the pressurized oil from leaking past the interface between the rod and the head.</p> Signup and view all the answers

<p>Seals are considered/designed as per the cylinder working pressure, cylinder speed, operating temperature, working medium, and application.</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>During the forward stroke the effective piston area is and the produced force is Extension force (Fe).</p> Signup and view all the answers

<p>During the backward (retraction) stroke the effective piston area is the piston rod area, the produced force is Retraction force (Fr).</p> Signup and view all the answers

An actuator that uses pressurized fluid to create linear motion.

A hydraulic cylinder that extends under pressure and retracts by gravity or spring.

Hydraulic cylinder that uses fluid power for both extension and retraction.

Hydraulic cylinders can produce forces much greater than pneumatic ones.

Hydraulic cylinders can operate at pressures up to 4,000 psi.

Leakage in hydraulic cylinders reduces efficiency and causes damage.

The main body of a hydraulic cylinder that houses the piston.

Encloses the pressure chamber at one end of the cylinder.

Seals the opposite end of the cylinder and may have seals.

The moving part inside a cylinder that separates pressure zones.

Connects the piston to the outside of the cylinder.

A component that prevent leakage at the rod-end head interface.

Prevent fluid leakage under various conditions in hydraulic systems.

Converts hydraulic pressure into rotational motion.

Turns hydraulic pressure into controlled rotary motion.

Stores hydraulic energy under pressure for future work.

Reduces vibrations in hydraulic systems.

Force produced during the cylinder's extension stroke.

Force produced during the cylinder's retraction stroke.