A fluid is considered to be either a ________ or a ________. - answer-liquid or gas
What is the difference between hydraulics and pneumatics? - answer-hydraulics uses oil or other liquids while pneumatics uses air or other gases.
Name three different industries that use hydraulics and one way...
Basic Hydraulics Module 1
A fluid is considered to be either a ________ or a ________. - answer-liquid or gas
What is the difference between hydraulics and pneumatics? - answer-hydraulics uses oil or other liquids
while pneumatics uses air or other gases.
Name three different industries that use hydraulics and one way it is used with in that industry. -
answer-manufacturing: lifting machines
Transportation: shock absorbers in cars
Construction: digging equipment
What are some advantages of hydraulics over pneumatics? - answer-hydraulics can operate in harsh
environments and underwater. Provides high forces and smooth/accurate control motion of the
machine.
What are some advantages of pneumatics - answer-can't leak oil in a clean room
Pascal's law - answer-when there is an increase in pressure at any point in a confined fluid, there is an
equal increase at every other point in the container.
Define pressure - answer-the intensity of force created when a force of one object acts over the area of
another
What is the formula for pressure? - answer-force / area = pressure
What are the units of measurement in s.i. for pressure, force and area? - answer-m^2, n, pa
What are the units of measurement in u.s. for pressure, force, and area? - answer-in^2, lbs, psi
Pressure gauges usually have what 2 scales for reading pressure? - answer-si and us
The outer black scale on a pressure gauge uses what kind of measurement? - answer-us
The inner red scale on a pressure gauge uses what kind of measurement? - answer-si
The __________ supplies the energy to cause the shaft of the pump to rotate. - answer-electric motor
What are the main components of a hydraulic power unit? - answer-hydraulic pump, reservoir, prime
mover
What does the reservoir do besides store oil? - answer-helps the liquid cool and settle out dirt
The relief valve_________ the system pressure. - answer-limits
The filler/breather allows what to pass through (besides oil) - answer-air
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