Millwright NCCER (Part ) Exam
Questions and Answers 100% score
Latest update 2026
According to Bernoulli's principle, when the flow rate is constant,
the total energy of a systems is _______________.
A) determined by the velocity
B) constantly changing
C) the same at all points
D) determined by the flow rate -
correct answer ✅C) the same at all points
The movement of a fluid in straight, parallel flow paths is called
___________.
A) flow rate
B) fluid power
C) laminar flow
D) turbulent flow -
correct answer ✅C) laminar flow
Accumulators are designed to ____________.
,Millwright NCCER (Part ) Exam
Questions and Answers 100% score
Latest update 2026
A) cool hydraulic fluid
B) clean hydraulic fluid
C) store fluid under pressure until the system needs it
D) prevent pressure buildup in the system -
correct answer ✅C) store fluid under pressure until the system
needs it
In an external gear motor, the motor's output drive shaft is
attached to the ______________.
A) outlet port
B) inlet port
C) driven gear
D) drive gear -
correct answer ✅D) drive gear
In an axial piston pump, the pistons are forced in and out of the
cylinder as they slide around the _____________.
,Millwright NCCER (Part ) Exam
Questions and Answers 100% score
Latest update 2026
A) port plate
B) servo
C) drive shaft
D) angled swash plate -
correct answer ✅D) angled swash plate
Check valves are __________ directional-control valves.
A) four-way
B) two-way
C) one-way
D) three-way -
correct answer ✅C) one-way
Most hydraulic fluids are _____________.
A) oil-in-water emulsions
B) phosphate esters
C) petroleum oil-based
, Millwright NCCER (Part ) Exam
Questions and Answers 100% score
Latest update 2026
D) water-based glycols -
correct answer ✅C) petroleum oil-based
A viscosity index reflects ______________.
A) the speed at which a liquid flows
B) how thick a fluid is at high temperatures
C) the lubricating ability of a fluid
D) the changes in fluid viscosity at different temperatures -
correct answer ✅D) the changes in fluid viscosity at different
temperatures
The movement of force over a distance is __________.
A) fluid power
B) pressure
C) energy
D) work -
correct answer ✅D) work
Questions and Answers 100% score
Latest update 2026
According to Bernoulli's principle, when the flow rate is constant,
the total energy of a systems is _______________.
A) determined by the velocity
B) constantly changing
C) the same at all points
D) determined by the flow rate -
correct answer ✅C) the same at all points
The movement of a fluid in straight, parallel flow paths is called
___________.
A) flow rate
B) fluid power
C) laminar flow
D) turbulent flow -
correct answer ✅C) laminar flow
Accumulators are designed to ____________.
,Millwright NCCER (Part ) Exam
Questions and Answers 100% score
Latest update 2026
A) cool hydraulic fluid
B) clean hydraulic fluid
C) store fluid under pressure until the system needs it
D) prevent pressure buildup in the system -
correct answer ✅C) store fluid under pressure until the system
needs it
In an external gear motor, the motor's output drive shaft is
attached to the ______________.
A) outlet port
B) inlet port
C) driven gear
D) drive gear -
correct answer ✅D) drive gear
In an axial piston pump, the pistons are forced in and out of the
cylinder as they slide around the _____________.
,Millwright NCCER (Part ) Exam
Questions and Answers 100% score
Latest update 2026
A) port plate
B) servo
C) drive shaft
D) angled swash plate -
correct answer ✅D) angled swash plate
Check valves are __________ directional-control valves.
A) four-way
B) two-way
C) one-way
D) three-way -
correct answer ✅C) one-way
Most hydraulic fluids are _____________.
A) oil-in-water emulsions
B) phosphate esters
C) petroleum oil-based
, Millwright NCCER (Part ) Exam
Questions and Answers 100% score
Latest update 2026
D) water-based glycols -
correct answer ✅C) petroleum oil-based
A viscosity index reflects ______________.
A) the speed at which a liquid flows
B) how thick a fluid is at high temperatures
C) the lubricating ability of a fluid
D) the changes in fluid viscosity at different temperatures -
correct answer ✅D) the changes in fluid viscosity at different
temperatures
The movement of force over a distance is __________.
A) fluid power
B) pressure
C) energy
D) work -
correct answer ✅D) work
