2ND 16 Flashcards
The piston area of a 6 inch diameter piston is __________ sq in.
a) 31.6
b) 28.3
c) 27.6
d) 25.4
b) 28.3
The pressure at the bottom of a column of oil 20 ft. high is ___ psi.
a) 7
b) 4
c) 8
d) 6
c) 8
The result of pressure acting on an area is called __________.
a) work
b) resistance
c) force
d) velocity
c) force
The pressure required to push oil through three 100 psi check valves in series is ________psi.
a) 300
b) 200
c) 100
d) 400
a) 300
Factors affecting the speed of an actuator are the flow rate of oil and the piston______ .
a) outlet
b) power
c) resistance
d) area
d) area
The volume of oil a cylinder will hold can be determined by multiplying the piston area by the _______.
a) stroke length
b) pressure
c) prime mover
d) power
a) stroke length
Resistance to flow creates__________ .
a) force
b) work
c) pressure
d) power
c) pressure
The pressure available to force liquid into a pump is usually_____ .
a) atmospheric
b) horsepower
c) actuator
d) force
a) atmospheric
The rate at which work is performed is determined by______ the__________ and size (hydraulic components).
a) outlet/inlet
b) piston/cylinder
c) valves/pump
d) actuator/pump
d) actuator/pump
If a force of 950 pounds is applied over a 30 sq. in. area, the pressure developed would be_______ psi.
a) 32.3
b) 32.1
c) 31.5
d) 31.6
d) 31.6
The function of a directional valve is to control the fluid_____ .
a) prime mover
b) power
c) direction
d) flow
c) direction
The quantity of force exerted over a distance with no time element considered is called___________ .
a) force
b) power
c) work
d) resistance
c) work
Horsepower can be calculated by multiplying the GPM by the pressure ant the constant__________ .
a) .00583
b) .000583
c) 3.14
d) 1.00683
b) .000583
When fluid flow is turbulent, friction varies as the square of the____________ .
a) velocity
b) pressure
c) power
d) force
a) velocity
The design of a hydraulic circuit begins with the__________ .
a) inlet
b) pump
c) actuator
d) stroke length
c) actuator
