One advantage of using a digital pressure gauge to test hydraulic ...

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One advantage of using a digital pressure gauge to test hydraulic systems is:
 
  a. They can withstand higher pressures
 b. There is no high pressure oil in the hand held display
 c. They can read quickly fluctuating pressures d. They are cheaper than analog gauges

Question 2

To prevent stiction from occurring to a valve this is done:
 
  a. Pulse an electrical signal to the valve
 b. Use a lower viscosity hydraulic fluid c. Use a higher voltage signal to the valve d. Reduce the main relief pressure setting

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Answer to Question 1

B

Answer to Question 2

A