NOCTI Maintenance Study Guide ACTUAL EXAM
2026/2027 PREP QUESTIONS COMPLETE ACCURATE
EXAM APPROVED QUESTIONS AND CORRECT VERIFIED
SOLUTIONS WITH DETAILED RATIONALES (100%
CORRECT VERIFIED ANSWERS) LATEST UPDATED
VERSION 2026 EDITION
A globe valve may be used as a flow control valve because A. it
will flow in one direction only B. it may be operated partially open
C. Its stem does not rise when it opened D. either side may be
used as the pressure side
B. It may be operated partially open
A double acting hydraulic cylinder A. exerts force in two directions
at once B. can exert force in either direction C. exerts force only in
one direction D. has a spring return
B. Can exert force in either direction.
In troubleshooting a hydraulic circuit with a noisy pump which of the
following is not a likely cause of the trouble ? A. air entering pump
inlet B. misalignment of pump and drive unit C. pressure relief valve
set too low D. dirty inlet strainer
B. Misalighment of pump and drive unit
The maximum allowable gap between the face of the wheel and the
tool rest on a pedestal grinder is A 1/8 inch B. 1/16 inch C. 1/32 inch
D. 1/4 inch
A 1/8 inch
A slip clutch is used A. to limit torque B. to reduce speed C. as a brake D.
as a torque arm
A. to limit torque
, Bubbles showing in a liquid indicator usually means that the system
A. is full of air Bis short of refrigerant C. head pressure is too high D.
head pressure is too low
Bis short of refrigerant
Rack and pinion are employed when it is necessary to change A.
variable speed to constant speed B. circular motion to linear
motion C. circular motion to cam motion D. cam motion to
circular motion
B. circular motion to linear motion
The function of a pressure relief valve is to A. unload the pump
b.divert the flow to the tank C. all of the above D. none of the
above
B.divert the flow to the tank
The belts in a multiple V - belt should be replaced A. In pairs B. in
matched sets C. singly D. in unmatched sets
B. in matched sets C.
Because switches can fail , after opening a disconnect it is always
safest to A.test the power circuit on the load side of the disconnect
sometimes called the downstream side of the disconnect B. test the
power circuit on the line , or upstream side of the disconnect C. test
the control circuit D. lock and tag the disconnect
A. Test the power circuit on the load side of the disconnext
sometimes called the downstream side of the disconnect.
A. black B. red C. green D. blue
B. red
2026/2027 PREP QUESTIONS COMPLETE ACCURATE
EXAM APPROVED QUESTIONS AND CORRECT VERIFIED
SOLUTIONS WITH DETAILED RATIONALES (100%
CORRECT VERIFIED ANSWERS) LATEST UPDATED
VERSION 2026 EDITION
A globe valve may be used as a flow control valve because A. it
will flow in one direction only B. it may be operated partially open
C. Its stem does not rise when it opened D. either side may be
used as the pressure side
B. It may be operated partially open
A double acting hydraulic cylinder A. exerts force in two directions
at once B. can exert force in either direction C. exerts force only in
one direction D. has a spring return
B. Can exert force in either direction.
In troubleshooting a hydraulic circuit with a noisy pump which of the
following is not a likely cause of the trouble ? A. air entering pump
inlet B. misalignment of pump and drive unit C. pressure relief valve
set too low D. dirty inlet strainer
B. Misalighment of pump and drive unit
The maximum allowable gap between the face of the wheel and the
tool rest on a pedestal grinder is A 1/8 inch B. 1/16 inch C. 1/32 inch
D. 1/4 inch
A 1/8 inch
A slip clutch is used A. to limit torque B. to reduce speed C. as a brake D.
as a torque arm
A. to limit torque
, Bubbles showing in a liquid indicator usually means that the system
A. is full of air Bis short of refrigerant C. head pressure is too high D.
head pressure is too low
Bis short of refrigerant
Rack and pinion are employed when it is necessary to change A.
variable speed to constant speed B. circular motion to linear
motion C. circular motion to cam motion D. cam motion to
circular motion
B. circular motion to linear motion
The function of a pressure relief valve is to A. unload the pump
b.divert the flow to the tank C. all of the above D. none of the
above
B.divert the flow to the tank
The belts in a multiple V - belt should be replaced A. In pairs B. in
matched sets C. singly D. in unmatched sets
B. in matched sets C.
Because switches can fail , after opening a disconnect it is always
safest to A.test the power circuit on the load side of the disconnect
sometimes called the downstream side of the disconnect B. test the
power circuit on the line , or upstream side of the disconnect C. test
the control circuit D. lock and tag the disconnect
A. Test the power circuit on the load side of the disconnext
sometimes called the downstream side of the disconnect.
A. black B. red C. green D. blue
B. red
