Hydraulics COPY

Question 1

Which type of pump is needed for hydraulic systems?

Answer 1

Positive displacement pump
(Hydraulics needs high pressure pumps)

Question 2

Name 2 basic actuators

Answer 2

1. linear actuator - single or double
2. Rotary

Question 3

Hydraulics

A fluid is defined as..

Answer 3

• Takes the shape of a container
• Transmits power
• Gas or liquid

Question 4

What are the 2 types of hydraulic oils called?

Answer 4

1. Petroleum
2. Synthetic

Question 5

What is Demulsibility?

Answer 5

The ability of fluid to seperate from water

Question 6

What is the purpose of the drain leg?

Answer 6

To return cooling, sealing & lubricating oil from the actuator to the tank

Question 7

What do accumulators do?

Answer 7

Smooths out pulsations & store potential energy

Question 8

What do actuators do?

Answer 8

It is a component of a machine that is responsible for moving and controlling a mechanism or system.In simple terms, it is a “mover”.
Requires a control device (controlled by control signal) and a source of energy (ie: hydraulics)
When it receives a control signal, an actuator responds by converting the source’s energy into mechanical motion

Question 9

Name 2 types of hydraulic systems

Answer 9

1. Ring main
2. Standalone power packs

Question 10

Name 2 types of accumulators

Answer 10

1. Bag
2. Bladder