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Fluids

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1.
1 point
A meter-in system is used to control piston speed of a single-acting cylinder during___.
2.
1 point
In a directional control valve, port____ receives fluid flow from the pump, while port_____ fluid flow to the reservoir.
3.
1 point
Hydraulic pump types include gear, vane, and ____ pumps.
4.
1 point
A common form of inefficiency in a fluid power system is____.
5.
1 point
A (n) ____ is a device that controls the pressure, direction, and/or rate or fluid flow.
6.
1 point
An OSHA-Approved hearing conservation program is required whenever workers are exposed to noise equal to or exceeding an 8 hr time-weighted average (TWA) of ____ decibels (dB).
7.
1 point
Either port of a double-acting cylinder can function as an input or an output, depending on whether the cylinder is extending or retracting
8.
1 point
A (n) ___ is an internal component of a directional control valve that is used to control fluid flow and to connect internal passages and ports.
9.
1 point
The color ____ in a color-coded cutaway diagram indicates intake flow from the reservoir through the filters to the pump.
10.
1 point
A___ flow meter has high internal resistance to fluid flow
11.
1 point
A____ mark is a mark used as a guide to join to parts together.
12.
1 point
A static seal is used between moving parts to prevent leaks or contamination
13.
1 point
The primary function of a (n) ___ valve is to control the rate of fluid flow.
14.
1 point
An ear protection device with an NRR of 33 means that in an area where the noise level is at 101 dB, the level of noise entering the ear would be at __ dB
15.
1 point
ANSI Z358.1-2004, Emergency eyewash and shower equipment, specifies that an emergency eyewash station must be located within___ sec or about ____' of hazards.
16.
1 point
Three-position, four-way directional control valves can only control one direction of fluid flow at a time.
17.
1 point
A (n) ___ cylinder uses fluid flow for extension and a spring, gravity, or other mechanical means for retractions.
18.
1 point
A (n) mark can be used on aunt to avoid under or over-tightening certain components.
19.
1 point
A___ is a line mark or print on a hose that indicates if a hydraulic hose has been improperly twisted after installation.
20.
1 point
____ states that when a force is applied to a confined fluid, the force is felt throughout the fluid undiminished.
21.
1 point
____ is anything that changes or tends to change the state of rest or motion of a body.
22.
1 point
When piston speed is too high, it can be corrected by using a____ valve
23.
1 point
____ is the capacity to do work.
24.
1 point
A bleed-off system uses a flow-control valve without a check valve
25.
1 point
A (n) ___ valve allows fluid flow from the pump port to an actuator port in the spring-actuated (normal) position.
26.
1 point
The lower a pipe schedule number, the smaller the ID of the pipe.
27.
1 point
Total energy in a fluid power system has the ability to change back and forth between static energy and kinetic energy as many times as necessary.
28.
1 point
The main categories of hydraulic pumps are dynamic and ____ pumps
29.
1 point
The bending radius of flexible hose must be greater than times______
30.
1 point
A___ system is typically used for applications that need to extend a heavy load but retract no load.
31.
1 point
Fluid travels at a higher velocity through large diameter piping than it does through low diameter piping
32.
1 point
A (n) diagram is a graphic representation of how devices interconnect in a fluid system.
33.
1 point
A (n) ____ valve allows fluid flow in one direction and stops fluid flow in the opposite direction.
34.
1 point
A (n) ___ system uses gas under pressure to create movement.
35.
1 point
Bleed-off meters fluid flow to and from a cylinder by returning (bleeding-off) some of the hydraulic fluid to the reservoir.
36.
1 point
The two types of mechanical accumulators include weight- and ____-loaded
37.
1 point
Fluids flow because they move from low-pressure areas to high-pressure areas
38.
1 point
cylinders and mototrs in a fluid power system are considered_____.
39.
1 point
Energy from gears, belts, or pulleys is an example of ___ energy.
40.
1 point
A (n) cylinder ___ uses fluid flow for extension and a spring for retraction
41.
1 point
A (n) cylinder___ is used in applications where loads are attached to each end of the rod.
42.
1 point
The two categories of accumulators that can be used in hydraulic systems are gas-charged and ___
43.
1 point
A ___ valve protects a fluid power system from overpressure by setting a maximum operating pressure.
44.
1 point
is the volume of hydraulic fluid moved during each revolution of the shaft of
Displacement
45.
1 point
If a hydraulic cylinder needs to lift a bridge beam that weighs 60,000LB and the piston in the cylinder has a surface area of 11.10 sq in., then the hydraulic system must produce system pressure of ___psi.
46.
1 point
____ indicates the rate that work is done.
47.
1 point
____ is the technology of using a fluid to transmit power from one location to another
48.
1 point
_____ are an eye and face protection device that covers the entire face with a plastic shield and is used for protection from flying objects.
49.
1 point
A n_____ is a vessel in which fluid is stored under pressure for future release of energy
50.
1 point
The advantage of a three-posistion, four-way directional control valve is that it has___ different center positions that can perform____ different operations.
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