Hydraulics

Question 1

How much volume is delivered if the swash plate in an axial piston pump is positioned at 90°?

Answer 1

none

Question 2

What is the first consideration when designing a fluid power system?

Answer 2

The load requirements

Question 3

What is the cracking pressure of a check valve?

Answer 3

3 -5 psi

Question 4

What is the standard included angle of a JIC fitting?

Answer 4

74°

Question 5

What is the function of the screw located in the end of a cylinder block?

Answer 5

Adjusting the cushion

Question 6

What does JIC stand for?

Answer 6

Joint Industrial Council

Question 7

What is cavitation?

Answer 7

The incomplete filling of the pumping chamber

Question 8

What is the cause of cylinder creep?

Answer 8

Worn piston seals or a scored cylinder wall

Question 9

What is used to control the output of a variable displacement pump?

Answer 9

Compensator

Question 10

What is a “quick disconnect” in a hydraulic system called?

Answer 10

Coupling

Question 11

Which of the following would cause a sudden pressure drop in a system?

Answer 11

Broken line

Question 12

What happens in a system when an accumulator closes suddenly?

Answer 12

Pressure drop

Question 13

Where is a Maximum Pressure relief valve located?

Answer 13

Close to the pump

Question 14

What type of pump is required to handle high viscosity fluid?

Answer 14

Radial piston pump.

Question 15

What is the function of a baffle plate in a hydraulic tank?

Answer 15

Prevents the return oil from directly re-entering the pump inlet