Millwright Journeyman Exam Questions and
Correct Answers Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the primary purpose of precision alignment in rotating
equipment?
A. Increase motor speed
B. Reduce vibration and wear
C. Increase electrical load
D. Improve lubrication flow
Answer: B
Precision alignment reduces vibration, bearing wear, and energy loss,
extending equipment life.
2. Which tool is commonly used to check shaft alignment?
A. Micrometer
B. Dial indicator
C. Torque wrench
D. Feeler gauge
,Answer: B
A dial indicator measures shaft runout and alignment accuracy.
3. What is the most common cause of bearing failure?
A. Over-lubrication
B. Misalignment
C. Excess paint
D. Improper labeling
Answer: B
Misalignment creates uneven load distribution leading to premature
bearing failure.
4. Which type of bearing supports radial loads?
A. Thrust bearing
B. Journal bearing
C. Ball thrust bearing
D. Magnetic bearing
Answer: B
Journal bearings primarily support radial loads.
,5. What is the function of a coupling in machinery?
A. Store energy
B. Connect rotating shafts
C. Increase voltage
D. Reduce pipe pressure
Answer: B
Couplings transmit torque between shafts while allowing slight
misalignment.
6. What is torque measured in?
A. Watts
B. Newton-meters
C. Volts
D. Hertz
Answer: B
Torque is a rotational force measured in Newton-meters or foot-pounds.
7. Which lubrication type is most common for high-speed bearings?
, A. Grease
B. Oil mist
C. Sand
D. Water
Answer: B
Oil mist lubrication is used for high-speed applications due to reduced
friction.
8. What is used to measure shaft diameter precisely?
A. Tape measure
B. Caliper
C. Level
D. Tachometer
Answer: B
A caliper provides accurate diameter measurements.
9. What is the purpose of a key in a shaft and hub assembly?
A. Reduce noise
B. Prevent corrosion
Correct Answers Verified Answers) Plus
Rationales 2026 Q&A | Instant Download Pdf
1. What is the primary purpose of precision alignment in rotating
equipment?
A. Increase motor speed
B. Reduce vibration and wear
C. Increase electrical load
D. Improve lubrication flow
Answer: B
Precision alignment reduces vibration, bearing wear, and energy loss,
extending equipment life.
2. Which tool is commonly used to check shaft alignment?
A. Micrometer
B. Dial indicator
C. Torque wrench
D. Feeler gauge
,Answer: B
A dial indicator measures shaft runout and alignment accuracy.
3. What is the most common cause of bearing failure?
A. Over-lubrication
B. Misalignment
C. Excess paint
D. Improper labeling
Answer: B
Misalignment creates uneven load distribution leading to premature
bearing failure.
4. Which type of bearing supports radial loads?
A. Thrust bearing
B. Journal bearing
C. Ball thrust bearing
D. Magnetic bearing
Answer: B
Journal bearings primarily support radial loads.
,5. What is the function of a coupling in machinery?
A. Store energy
B. Connect rotating shafts
C. Increase voltage
D. Reduce pipe pressure
Answer: B
Couplings transmit torque between shafts while allowing slight
misalignment.
6. What is torque measured in?
A. Watts
B. Newton-meters
C. Volts
D. Hertz
Answer: B
Torque is a rotational force measured in Newton-meters or foot-pounds.
7. Which lubrication type is most common for high-speed bearings?
, A. Grease
B. Oil mist
C. Sand
D. Water
Answer: B
Oil mist lubrication is used for high-speed applications due to reduced
friction.
8. What is used to measure shaft diameter precisely?
A. Tape measure
B. Caliper
C. Level
D. Tachometer
Answer: B
A caliper provides accurate diameter measurements.
9. What is the purpose of a key in a shaft and hub assembly?
A. Reduce noise
B. Prevent corrosion
