Millwright Prep Exam Questions and
Answers with Verified Solutions | Latest
Updated 2026
What are the 2 classes of a. Hydrostatic & Hydrodynamic
hydraulics? b. Hydrostatic & Centrifugal
c. Hydrodynamic & Centrifugal
d. Hydrodynamic & Pressurized
What causes pressure drop in a a. Excessive pressure Velocity
hydraulic line? b.Excessive Fluid Velocity
c. Excessive Fluid outtake
d. Excessive ambient drop
What causes aeration in a Air in the suction line
hydraulic
pump?
What type of hydraulic cylinder is Adjustable cushion on extend only
indicated in the circuit in Figure 1?
What is Figure 2? Pilot Operated check valve with a 5:1 line
to pilot
pressure ratio
What valve is internally piloted Pressure reducing valve
from
the outlet port and externally
drained?
, What valve discharges at a preset Pressure Relief Valve
pressure?
What is the purpose of a pump? Create Flow
Which valve limits system Pressure Relief Valve
pressure
when using a fixed displacement
pump?
What is a symptom of a noisy Low fluid level in tank
pump?
Why can a pressure compensated It shifts to minimum flow
variable displacement pump work
without a relief?
Where is the main purpose Between Pump & control valve
pressure
relief valve located in a hydraulic
system?
What instruments are used for Tachometer, flowmeter & pressure guage
testing a hydraulic system?
What are the brownish deposits varnish
found on valve spools?
what is the flare angle for hydraulic 37" included angle
tubing that complies with JIC
standards
Answers with Verified Solutions | Latest
Updated 2026
What are the 2 classes of a. Hydrostatic & Hydrodynamic
hydraulics? b. Hydrostatic & Centrifugal
c. Hydrodynamic & Centrifugal
d. Hydrodynamic & Pressurized
What causes pressure drop in a a. Excessive pressure Velocity
hydraulic line? b.Excessive Fluid Velocity
c. Excessive Fluid outtake
d. Excessive ambient drop
What causes aeration in a Air in the suction line
hydraulic
pump?
What type of hydraulic cylinder is Adjustable cushion on extend only
indicated in the circuit in Figure 1?
What is Figure 2? Pilot Operated check valve with a 5:1 line
to pilot
pressure ratio
What valve is internally piloted Pressure reducing valve
from
the outlet port and externally
drained?
, What valve discharges at a preset Pressure Relief Valve
pressure?
What is the purpose of a pump? Create Flow
Which valve limits system Pressure Relief Valve
pressure
when using a fixed displacement
pump?
What is a symptom of a noisy Low fluid level in tank
pump?
Why can a pressure compensated It shifts to minimum flow
variable displacement pump work
without a relief?
Where is the main purpose Between Pump & control valve
pressure
relief valve located in a hydraulic
system?
What instruments are used for Tachometer, flowmeter & pressure guage
testing a hydraulic system?
What are the brownish deposits varnish
found on valve spools?
what is the flare angle for hydraulic 37" included angle
tubing that complies with JIC
standards
