True or Falsr 1Fluid power is the best way to produce highfo

True or Falsr

1-Fluid power is the best way to produce high-force linear motion.

2-A pump is a device which converts mechanical force and motion into hydraulic fluid power.

3-The basic vane pump is subject to high bearing loads because it is unbalanced.

4-Valves controls either fluid pressure, fluid direction, or rate of fluid flow.

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1-The most efficient type of pump is the:

A-External gear pump B-Internal gear pump

C-Vane D-Piston

2-The simplest type of cylinder is the:

A-Double-acting B-Single-acting   

C-Rodless D-Double-piston

Solution

1. True Fluid power system can easily produce linear motion using pneumatich or ydraulic cylinders, where mechanical and electrical methods usually use a mechanical device which converts the rotational motion into linear. Fluid power systems generally transmit equivalent power within a much smaller space than other two drives specially when high force or torque is required.

2. True Its mechanical action creates vacuum at the inlet of the pump which allows atmospheric pressure to push liquid from the reservoir into the pump inlet line. Then its mechanical action delivers the liquid into the outlet of the pump and forces it into the hydraulic system producing hydraulic energy.

3.True
One of the disadvantage of unbalanced vane pump is that unbalanced pressure at the outlet is very effective against the small area of the rotor edge, which impose side loads on the bearing

4. True

Hydraulics valves can be subdivided into three categories: directional control valves (control fluid directions), pressure control valves (control fluid pressure) and flow control valves (Controls rate of fluid flow).