Hydraulic And Pneumatic Power Systems Chapter 12 Access

Cavitation in a hydraulic pump is caused by: a) High oil temperature b) Contaminated oil c) Low inlet pressure ✅ d) Wrong viscosity

In a hydraulic intensifier, output pressure is _____ than input pressure. a) Lower b) Same c) Higher ✅ d) Unrelated hydraulic and pneumatic power systems chapter 12

An FRL unit in a pneumatic system stands for: a) Flow, Return, Leak b) Filter, Regulator, Lubricator ✅ c) Fluid, Return, Line d) Fast, Reliable, Light Cavitation in a hydraulic pump is caused by:

Hydraulic fluid viscosity that is too high causes: a) Faster actuator response b) Increased power consumption and slow operation ✅ c) Lower system pressure d) No effect Leak b) Filter

def pump_flow_rate(displacement_in3_per_rev, rpm, efficiency=0.9): """Q = (displacement × rpm) / 231 (gpm)""" theoretical = (displacement_in3_per_rev * rpm) / 231 return theoretical * efficiency

What device prevents overpressure in a hydraulic system? a) Flow control valve b) Pressure relief valve ✅ c) Check valve d) Directional control valve