Millwright Journeyman Certification Exam
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of a millwright in industrial settings?
Installation, maintenance, and repair of machinery
Routine inspection of electrical wiring
Managing inventory of raw materials
Operating heavy machinery
Millwrights specialize in assembling, installing, and maintaining
industrial machinery, not general inventory or operation.
2. Which tool is commonly used for precise leveling of machinery?
Tape measure
Spirit level (bubble level)
Hammer
Screwdriver
A spirit level ensures machinery is level and aligned, which is
critical for operation and longevity.
3. What is the primary function of a key in a shaft and pulley system?
To lubricate moving parts
To connect electrical circuits
To transmit torque from the shaft to the hub
To prevent vibration
, Keys fit into keyways and lock rotating elements together to
transmit rotational force safely.
4. When aligning two coupled shafts, which method provides the
most accurate results?
Measuring tape method
Dial indicator method
Visual inspection only
Using a hammer
Dial indicators measure minute misalignment accurately, ensuring
proper shaft performance.
5. What is the correct order of tightening bolts on a flanged
connection?
Clockwise around the flange
Counterclockwise around the flange
Star pattern sequence
Random sequence
Tightening in a star pattern distributes load evenly and prevents
warping or leakage.
6. Which type of bearing is designed to handle both radial and axial
loads?
Sleeve bearing
Thrust bearing
Angular contact ball bearing
Plain bearing
Angular contact bearings are specifically designed to handle
combined radial and axial loads.
, 7. What is the main hazard when using a chain hoist improperly?
Electric shock
Fire hazard
Load dropping
Noise pollution
Incorrect use can cause chains or hooks to fail, potentially
dropping heavy loads.
8. Which of the following is the most important step before
performing maintenance on a machine?
Lubricate all moving parts
Lockout/Tagout procedure
Clean the surrounding area
Measure the machine alignment
Lockout/Tagout ensures the machine is completely de-energized,
preventing accidents.
9. What does the term "runout" refer to in rotating machinery?
Bearing temperature
Deviation of a shaft from true rotation
Lubrication type
Noise level
Runout is a measure of how much a shaft or rotor deviates from
perfect rotation, affecting alignment and performance.
10. Which type of weld is typically used for securing heavy
structural components?
Spot weld
Seam weld
Fillet weld
Questions And Correct Answers (Verified
Answers) Plus Rationales 2026 Q&A |
Instant Download Pdf
1. What is the primary purpose of a millwright in industrial settings?
Installation, maintenance, and repair of machinery
Routine inspection of electrical wiring
Managing inventory of raw materials
Operating heavy machinery
Millwrights specialize in assembling, installing, and maintaining
industrial machinery, not general inventory or operation.
2. Which tool is commonly used for precise leveling of machinery?
Tape measure
Spirit level (bubble level)
Hammer
Screwdriver
A spirit level ensures machinery is level and aligned, which is
critical for operation and longevity.
3. What is the primary function of a key in a shaft and pulley system?
To lubricate moving parts
To connect electrical circuits
To transmit torque from the shaft to the hub
To prevent vibration
, Keys fit into keyways and lock rotating elements together to
transmit rotational force safely.
4. When aligning two coupled shafts, which method provides the
most accurate results?
Measuring tape method
Dial indicator method
Visual inspection only
Using a hammer
Dial indicators measure minute misalignment accurately, ensuring
proper shaft performance.
5. What is the correct order of tightening bolts on a flanged
connection?
Clockwise around the flange
Counterclockwise around the flange
Star pattern sequence
Random sequence
Tightening in a star pattern distributes load evenly and prevents
warping or leakage.
6. Which type of bearing is designed to handle both radial and axial
loads?
Sleeve bearing
Thrust bearing
Angular contact ball bearing
Plain bearing
Angular contact bearings are specifically designed to handle
combined radial and axial loads.
, 7. What is the main hazard when using a chain hoist improperly?
Electric shock
Fire hazard
Load dropping
Noise pollution
Incorrect use can cause chains or hooks to fail, potentially
dropping heavy loads.
8. Which of the following is the most important step before
performing maintenance on a machine?
Lubricate all moving parts
Lockout/Tagout procedure
Clean the surrounding area
Measure the machine alignment
Lockout/Tagout ensures the machine is completely de-energized,
preventing accidents.
9. What does the term "runout" refer to in rotating machinery?
Bearing temperature
Deviation of a shaft from true rotation
Lubrication type
Noise level
Runout is a measure of how much a shaft or rotor deviates from
perfect rotation, affecting alignment and performance.
10. Which type of weld is typically used for securing heavy
structural components?
Spot weld
Seam weld
Fillet weld
