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DSL 109 HHP PUMP COMPENSATE

Authored by Peter Hughes

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Professional Development

DSL 109 HHP PUMP COMPENSATE
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When a Pressure-Compensating (PC) hydraulic system has the DCVs in a neutral position, what happens to the system flow and pressure?

System flow drops to near zero and pressure rises to the compensator setting.

System flow increases and pressure drops to zero.

Both system flow and pressure drop to zero.

System flow and pressure remain constant at maximum values.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following best describes the advantages and disadvantages of a pressure-compensating hydraulic system?

It maintains constant pressure and improves efficiency, but can be more complex and expensive.

It increases system pressure and reduces efficiency, but is simple and inexpensive.

It eliminates the need for maintenance and reduces system pressure, but is less efficient.

It only works at low pressures and is not suitable for industrial applications.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Open-center hydraulic systems are not operated at a constant high system pressure because:

It would cause unnecessary energy loss and heat generation.

It increases the speed of the system.

It improves the efficiency of the pump.

It allows for continuous fluid flow at all times.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Refer to the diagram titled 'Pressure-Compensating Pump Symbols.' Which of the following best describes the function of a pressure-compensating pump?

Maintains constant flow regardless of pressure changes

Maintains constant pressure regardless of flow changes

Increases pressure as flow increases

Decreases pressure as flow increases

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Refer to the diagram titled 'Pressure-Compensating Pump Symbols.' The component labeled as 'PC pump' in each symbol is responsible for _________?

compensating for pressure changes in the hydraulic system

increasing the temperature of the hydraulic fluid

filtering contaminants from the hydraulic fluid

regulating the speed of the hydraulic motor

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Refer to the diagram titled 'Pressure-Compensating Pump Symbols.' True or False: All three symbols shown represent different configurations of pressure-compensating pumps.

True

False

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

One type of PC System Pump Design is _________

Variable vane

Fixed gear

Rotary piston

Axial flow

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