MILLWRIGHT LEVEL 1 FINAL EXAM
QUESTIONS AND CORRECT ANSWERS| GRADED
A+| LATEST UPDATE 2026
On a pedestal grinder, the gap between the grinding wheel and work rest
should not exceed: - ANSWER-1/8 inch
The kind of abrasive material used in grinding wheels for general purpose
applications is: - ANSWER-aluminum oxide
A blotter is used on a grinding wheel to: - ANSWER-protect the flanges from
the abrasive grit, display information about the wheel and compensate for the
uneven surfaces on the wheel
Flanges should at least be: - ANSWER-1/3 the diameter of the wheel
The best wheel to use for cleaning scale and dirt off a workpiece is the: -
ANSWER-wire wheel
What is a natural abrasive? - ANSWER-made of natural material rather than
synthetic
,Under properties of abrasives, to what does the term hardness refer? -
ANSWER-ability of a material to scratch or penetrate another material
The is the part of the wheel that holds the grains together - ANSWER-
bond
Markings for the wheel identification can be found on the - ANSWER-
Blotter
What is the recommended speed to run a grinding wheel? - ANSWER-Never
run it faster that the max RPM of the grinding wheel
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 syndrome
- 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
Fasteners used in explosive actuated tools are: - ANSWER-Manufactured from
special steel and tempered
A drive pin is a fastener used to: - ANSWER-Permanently attach one material to
another
QUESTIONS AND CORRECT ANSWERS| GRADED
A+| LATEST UPDATE 2026
On a pedestal grinder, the gap between the grinding wheel and work rest
should not exceed: - ANSWER-1/8 inch
The kind of abrasive material used in grinding wheels for general purpose
applications is: - ANSWER-aluminum oxide
A blotter is used on a grinding wheel to: - ANSWER-protect the flanges from
the abrasive grit, display information about the wheel and compensate for the
uneven surfaces on the wheel
Flanges should at least be: - ANSWER-1/3 the diameter of the wheel
The best wheel to use for cleaning scale and dirt off a workpiece is the: -
ANSWER-wire wheel
What is a natural abrasive? - ANSWER-made of natural material rather than
synthetic
,Under properties of abrasives, to what does the term hardness refer? -
ANSWER-ability of a material to scratch or penetrate another material
The is the part of the wheel that holds the grains together - ANSWER-
bond
Markings for the wheel identification can be found on the - ANSWER-
Blotter
What is the recommended speed to run a grinding wheel? - ANSWER-Never
run it faster that the max RPM of the grinding wheel
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 syndrome
- 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
Fasteners used in explosive actuated tools are: - ANSWER-Manufactured from
special steel and tempered
A drive pin is a fastener used to: - ANSWER-Permanently attach one material to
another
