Tech A says that spring tension against a spool valve regulates system pressure. Tech B says that a 50% pulse width modulation means the valve is closed 50% of the time. Who is correct?
A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Tech A is correct because spring tension against a spool valve can regulate system pressure by controlling the position of the valve. Tech B is also correct because a 50% pulse width modulation (PWM) means the valve is energized and closed 50% of the time, allowing for control over the flow or pressure in the system.

Tech a Says That Spring Tension Against a Spool Valve