Pressure
This term is the imperial measurement for pressure
What is PSI
An engine water pump is an example of this type of pump
What is non positive displacement
This is what a psia gauge will read at sea level
What is 14.7 psi
This is the pressure on both sides of an orifice if there is no flow
What is equal
This is the best place to look for information on releasing trapped energy on a machine.
What is the service manual
This is required to create pressure
What is resistance to flow
These items seal the sides of the gears to prevent leakage from outlet to inlet
What are end plates
This is a characteristic that makes fluid good for hydraulic systems
What is non compressible
This states that pressure is equal in all directions in an enclosed space
What is Pascal's Law
This should be installed when working in a cruch point
What is a safety lock or stand
This term is a metric measure of pressure
What is kg/cm2
DAILY DOUBLE
This is what a pump creates for a hydraulic system
What is flow
These are the main parts of a basic hydraulic system
Pump, lines, valve and actuator
This piston will move first when a weighted 1 sq" and a 2 sq" piston are acted on by the same pressure
What is the 2 sq" piston will move first
This should be done before removing any hose on a machine
De- energize the system
This will happen as fluid flows through an orifice
What is a pressure drop
This is where most of the wear will occur in a gear pump
At the inlet side
This is created when high pressure passes through an orifice to low pressure
What is heat
This states that if a fluid speeds up the pressure drops
This is the minimum PPE that should be worn when working on hydraulic systems
Safety glasses, hearing protection and gloves
DAILY DOUBLE This is the formula for pressure
What is P=force/area
This type of pump is commonly used when displacement needs to be variable
What is a piston pump
This is the amount of pressure created by a 1 ft of head of water
What is 0.4 psi
This is Pascal's first name
What is Blaise
This should never be used to check for a hydraulic leak
What is your hand