MILLWRIGHT LEVEL 3 COMPREHENSIVE EXAM
2026 FULL QUESTIONS AND CORRECT
ANSWERS ALREADY PASSED
◉ How should you start a grinder?
Answer: Stand off to the side and wait a full minute
◉ Is 46 or 60 the coarser grit?
Answer: 46
◉ What are the 2 most commonly used abrasive materials?
Answer: Aluminum oxide and silicone carbide
◉ For what purpose is the diamond dresser used?
Answer: When a very fine finish is required
◉ What is the purpose of ring test?
Answer: to check for cracks
◉ If a grinding wheel makes a ringing sound what does that mean?
Answer: wheel is not cracked
,◉ What is the purpose of truing a grinding wheel?
Answer: Restores the shape of the wheel and makes the outer
surface of the wheel concentric with its bore
◉ An out of balance wheel:
Answer: vibrates
◉ Belt grinders are useful for:
Answer: quickly deburring and chamfering a workpiece
◉ What is the purpose of a GFCI?
Answer: Senses drop in current and switches power off
◉ The kind of abrasive material use in grinding wheels for general
purpose application is:
Answer: aluminum oxide
◉ Is it safe to carry a portable grinder by the power cord?
Answer: False
◉ Is it safe to use standard sockets with electric impact wrenches
,Answer: False
◉ The larger the power drill, the slower the RPMs and the higher the
torque
Answer: True
◉ Can you use conventional drill bits with a hammer drill? Why or
why not?
Answer: Yes of the hammer drill has a switch to turn off hammer
action
◉ Most cordless drills have torque control
Answer: True
◉ Prolonged use of power or air tools can cause carpal tunnel
sydrome
Answer: True
◉ Is it safe to run an impact wrench with a universal joint and socket
attached
Answer: No because it may throw off attachments
◉ What conditions would you use a GFCI
, Answer: Wet conditions
◉ What 3 things does a GFCI protect:
Answer: 1. Overload 2. Overcurrent 3. Ground fault protection
◉ A GFCI prevents all electrical shocks
Answer: False
◉ Higher voltage on a battery means:
Answer: Greater power of tool
◉ What type of power load must be used in the low velocity tool?
Why?
Answer: Power load with a crimped end must be used cause high
power load would get lodged in the tool
◉ 6 colours ranging from lowest strength to highest strength for
power load are:
Answer: 1. Grey 2. Brown 3. Green 4. Yellow 5. Red 6. Purple
◉ Power loads should not be carried loosely in pockets or aprons.
Why?
Answer: Could be set off causing serious injury or death
2026 FULL QUESTIONS AND CORRECT
ANSWERS ALREADY PASSED
◉ How should you start a grinder?
Answer: Stand off to the side and wait a full minute
◉ Is 46 or 60 the coarser grit?
Answer: 46
◉ What are the 2 most commonly used abrasive materials?
Answer: Aluminum oxide and silicone carbide
◉ For what purpose is the diamond dresser used?
Answer: When a very fine finish is required
◉ What is the purpose of ring test?
Answer: to check for cracks
◉ If a grinding wheel makes a ringing sound what does that mean?
Answer: wheel is not cracked
,◉ What is the purpose of truing a grinding wheel?
Answer: Restores the shape of the wheel and makes the outer
surface of the wheel concentric with its bore
◉ An out of balance wheel:
Answer: vibrates
◉ Belt grinders are useful for:
Answer: quickly deburring and chamfering a workpiece
◉ What is the purpose of a GFCI?
Answer: Senses drop in current and switches power off
◉ The kind of abrasive material use in grinding wheels for general
purpose application is:
Answer: aluminum oxide
◉ Is it safe to carry a portable grinder by the power cord?
Answer: False
◉ Is it safe to use standard sockets with electric impact wrenches
,Answer: False
◉ The larger the power drill, the slower the RPMs and the higher the
torque
Answer: True
◉ Can you use conventional drill bits with a hammer drill? Why or
why not?
Answer: Yes of the hammer drill has a switch to turn off hammer
action
◉ Most cordless drills have torque control
Answer: True
◉ Prolonged use of power or air tools can cause carpal tunnel
sydrome
Answer: True
◉ Is it safe to run an impact wrench with a universal joint and socket
attached
Answer: No because it may throw off attachments
◉ What conditions would you use a GFCI
, Answer: Wet conditions
◉ What 3 things does a GFCI protect:
Answer: 1. Overload 2. Overcurrent 3. Ground fault protection
◉ A GFCI prevents all electrical shocks
Answer: False
◉ Higher voltage on a battery means:
Answer: Greater power of tool
◉ What type of power load must be used in the low velocity tool?
Why?
Answer: Power load with a crimped end must be used cause high
power load would get lodged in the tool
◉ 6 colours ranging from lowest strength to highest strength for
power load are:
Answer: 1. Grey 2. Brown 3. Green 4. Yellow 5. Red 6. Purple
◉ Power loads should not be carried loosely in pockets or aprons.
Why?
Answer: Could be set off causing serious injury or death
