9-48.
An actuating units speed of
operation is controlled by what
component?
1.
A capacitor
2.
A restrictor
3.
A priority valve
4.
A sequence valve
9-49.
To retard the action of a hydraulic
cylinder by limiting the flow of
fluid in both directions, you
should use which of the following
devices?
A timing valve
A control valve
A one-way restrictor
A two-way restrictor
9-50.
When it is necessary to lower the
normal operating pressure a
specified amount, you should use
what valve?
1.
A flow control valve
2.
A two-way check valve
3.
A pressure reducing valve
4.
A one-way restrictor valve
9-51.
An automatic resetting hydraulic
fuse is designed to close and shut
off the flow of fluid that passes
through it when which of the
following problems occurs?
1.
Excessive volume
2.
Excessive pressure
3.
Excessive temperature
4.
Excessive contamination
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