and Answers 100% Pass
A hydraulic pipe designated as Scheduled 80 is - ✔✔Extra Heavy
A disadvantage of using hose in hydaulic systems instead of piping or tubingis that the
hose - ✔✔is less permanent
Which type of fitting should be used on a steel hydraulic line - ✔✔steel
Pressure lose in a hydraulic line depends on the - ✔✔flow velocity
Hydraulic lines should NEVER be constructed of - ✔✔Galvanized pipe
Which type of valve has a round core - ✔✔Rotary
To facillitate comparison, manufacturers rate the flow capacity of vavles by their -
✔✔CV Factor
Which of the following kinds of vavles should be used in hydraulic system to change
the direction of motion of the cylinder? - ✔✔Directional control vavle
The coonsturction of a spool vavle causes it to - ✔✔Be partially balanced
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, In applications using a needle vavle that must be shut off frequently, a ________ should
be used - ✔✔sofft seat
What characteristic of a fluid does the term "specific gravity" describe ? - ✔✔Density
the formation of large air bubbles or pockets in a hydraulic system is known as -
✔✔Cavitation
The Law of Conservatiion of Energy states that energy cannot be created or destroyed,
it can only be - ✔✔Transformed
According to Bernoullis Law Principle, when fluid flow increases in asystem, the
pressure - ✔✔Decreases
What type of energy is produced in a hydraulic system when the piston has raised an
object to a higher level ? - ✔✔Potential
Fluid pressure in one section of a hydraulic system is limited by a - ✔✔reducing vavle
The flow from the outlet of a sequence vavle is at - ✔✔Line pressure
A meter out flow control vavle is used to regulate fluid flow from a(n) - ✔✔actuator
The operating differential pressure of a relief vavle is the difference between its
maximum - ✔✔Cracking pressure
A counterbalance vavle is normally a _______ vavle - ✔✔double- poppet
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