MILLWRIGHT LEVEL 1 QUESTIONS &
SOLUTIONS(GRADED A+)
On a pedestal grinder, the gap between the grinding wheel and work rest should not
exceed: - ANSWER1/8 inch
The kind of abrasive material used in grinding wheels for general purpose applications
is: - ANSWERaluminum oxide
A blotter is used on a grinding wheel to: - ANSWERprotect the flanges from the
abrasize grit, display information about the wheel and compensate for the uneven
surfaces on the wheel
Flanges should at least be: - ANSWER1/3 the diameter of the wheel
The best wheel to use for cleaning scale and dirt off a workpiece is the: - ANSWERwire
wheel
What is a natural abrasive? - ANSWERmade of natural material rather than synthetic
Under properties of abrasives, to what does the term hardness refer? - ANSWERability
of a material to scratch or penetrate another material
The ____ is the part of the wheel that holds the grains together - ANSWERbond
Markings for the wheel identification can be found on the _______ - ANSWERBlotter
What is the recommended speed to run a grinding wheel? - ANSWERNever run it faster
that the max RPM of the grinding wheel
How should you start a grinder? - ANSWERStand off to the side and wait a full minute
Is 46 or 60 the coarser grit? - ANSWER46
What are the 2 most commonly used abrasive materials? - ANSWERAluminum oxide
and silicone carbide
For what purpose is the diamond dresser used? - ANSWERWhen a very fine finish is
required
What is the purpose of ring test? - ANSWERto check for cracks
If a grinding wheel makes a ringing sound what does that mean? - ANSWERwheel is
not cracked
,What is the purpose of truing a grinding wheel? - ANSWERRestores the shape of the
wheel and makes the outer surface of the wheel concentric with its bore
An out of balance wheel: - ANSWERvibrates
Belt grinders are useful for: - ANSWERquickly deburring and chamfering a workpiece
What is the purpose of a GFCI? - ANSWERSenses drop in current and switches power
off
The kind of abrasive material use in grinding wheels for general purpose application is: -
ANSWERaluminum oxide
Is it safe to carry a portable grinder by the power cord? - ANSWERFalse
Is it safe to use standard sockets with electric impact wrenches - ANSWERFalse
The larger the power drill, the slower the RPMs and the higher the torque -
ANSWERTrue
Can you use conventional drill bits with a hammer drill? Why or why not? -
ANSWERYes of the hammer drill has a switch to turn off hammer action
Most cordless drills have torque control - ANSWERTrue
Prolonged use of power or air tools can cause carpal tunnel sydrome - ANSWERTrue
Is it safe to run an impact wrench with a universal joint and socket attached -
ANSWERNo because it may throw off attachments
What conditions would you use a GFCI - ANSWERWet conditions
What 3 things does a GFCI protect: - ANSWER1. Overload 2. Overcurrent 3. Ground
fault protection
A GFCI prevents all electrical shocks - ANSWERFalse
Higher voltage on a battery means: - ANSWERGreater power of tool
If a tool is found to be defective, you should: - ANSWERMark it defective and call a
service representative
According to OH&S, what safety equipment is required when using an explosive actuate
tool in a confined area such as a small room? - ANSWERear plugs and eye protection
, Who is responsible if an accident occurs as a result of an unattended explosive
actuated tool? - ANSWERThe operator
Should an explosive actuated tool be used in explosive or flammable area? -
ANSWERNo
How often should an explosive actuated tool be cleaned under normal working
conditions? - ANSWERIt should be cleaned daily or when it becomes sluggish
How much oil should be added to the tool parts after cleaning? - ANSWERNone
What part requires replacement most often in a low velocity tool? - ANSWERBuffer
With a low velocity tool, what is a general rule of thumb for the placement and depth of
fasteners in steel? - ANSWER1/2" from the edge, 2" apart and 1/4" deep
Do not fasten near welds with a low velocity tool because the steel may have been
hardened making the metal brittle - ANSWERTrue
Tension load in regards to explosive actuated tools is: - ANSWERa force applied
perpendicular to the base of the material
Shear load in regards to explosive actuated tools is: - ANSWERa force applied
perpendicular to the fastener
Bending load in regards to explosive actuated tools is: - ANSWERshear force that is
applied at a distance for the surface base of the material creating a lever-type action on
the fastener
With a low velocity tool, what is a general rule of thumb for the placement and depth of
fasteners in concrete? - ANSWER3" from the edge and from each other
How long should you wait if a power actuated tool misfires? - ANSWER30 seconds
What is another name for a power saw? - ANSWERReciprocating saw
What determines the size (capacity) of a power hacksaw? - ANSWERLargest square
piece that can be cut
Why is the pressure removed from the blade of a power hack saw on the return stroke?
- ANSWERTo prevent damage to the blade
How is the speed of a power hacksaw expressed? - ANSWERStrokes per minute
Describe the characteristics of a bimetal power hacksaw blade - ANSWERHigh speed
tooth edge with a tough alloy steel back
SOLUTIONS(GRADED A+)
On a pedestal grinder, the gap between the grinding wheel and work rest should not
exceed: - ANSWER1/8 inch
The kind of abrasive material used in grinding wheels for general purpose applications
is: - ANSWERaluminum oxide
A blotter is used on a grinding wheel to: - ANSWERprotect the flanges from the
abrasize grit, display information about the wheel and compensate for the uneven
surfaces on the wheel
Flanges should at least be: - ANSWER1/3 the diameter of the wheel
The best wheel to use for cleaning scale and dirt off a workpiece is the: - ANSWERwire
wheel
What is a natural abrasive? - ANSWERmade of natural material rather than synthetic
Under properties of abrasives, to what does the term hardness refer? - ANSWERability
of a material to scratch or penetrate another material
The ____ is the part of the wheel that holds the grains together - ANSWERbond
Markings for the wheel identification can be found on the _______ - ANSWERBlotter
What is the recommended speed to run a grinding wheel? - ANSWERNever run it faster
that the max RPM of the grinding wheel
How should you start a grinder? - ANSWERStand off to the side and wait a full minute
Is 46 or 60 the coarser grit? - ANSWER46
What are the 2 most commonly used abrasive materials? - ANSWERAluminum oxide
and silicone carbide
For what purpose is the diamond dresser used? - ANSWERWhen a very fine finish is
required
What is the purpose of ring test? - ANSWERto check for cracks
If a grinding wheel makes a ringing sound what does that mean? - ANSWERwheel is
not cracked
,What is the purpose of truing a grinding wheel? - ANSWERRestores the shape of the
wheel and makes the outer surface of the wheel concentric with its bore
An out of balance wheel: - ANSWERvibrates
Belt grinders are useful for: - ANSWERquickly deburring and chamfering a workpiece
What is the purpose of a GFCI? - ANSWERSenses drop in current and switches power
off
The kind of abrasive material use in grinding wheels for general purpose application is: -
ANSWERaluminum oxide
Is it safe to carry a portable grinder by the power cord? - ANSWERFalse
Is it safe to use standard sockets with electric impact wrenches - ANSWERFalse
The larger the power drill, the slower the RPMs and the higher the torque -
ANSWERTrue
Can you use conventional drill bits with a hammer drill? Why or why not? -
ANSWERYes of the hammer drill has a switch to turn off hammer action
Most cordless drills have torque control - ANSWERTrue
Prolonged use of power or air tools can cause carpal tunnel sydrome - ANSWERTrue
Is it safe to run an impact wrench with a universal joint and socket attached -
ANSWERNo because it may throw off attachments
What conditions would you use a GFCI - ANSWERWet conditions
What 3 things does a GFCI protect: - ANSWER1. Overload 2. Overcurrent 3. Ground
fault protection
A GFCI prevents all electrical shocks - ANSWERFalse
Higher voltage on a battery means: - ANSWERGreater power of tool
If a tool is found to be defective, you should: - ANSWERMark it defective and call a
service representative
According to OH&S, what safety equipment is required when using an explosive actuate
tool in a confined area such as a small room? - ANSWERear plugs and eye protection
, Who is responsible if an accident occurs as a result of an unattended explosive
actuated tool? - ANSWERThe operator
Should an explosive actuated tool be used in explosive or flammable area? -
ANSWERNo
How often should an explosive actuated tool be cleaned under normal working
conditions? - ANSWERIt should be cleaned daily or when it becomes sluggish
How much oil should be added to the tool parts after cleaning? - ANSWERNone
What part requires replacement most often in a low velocity tool? - ANSWERBuffer
With a low velocity tool, what is a general rule of thumb for the placement and depth of
fasteners in steel? - ANSWER1/2" from the edge, 2" apart and 1/4" deep
Do not fasten near welds with a low velocity tool because the steel may have been
hardened making the metal brittle - ANSWERTrue
Tension load in regards to explosive actuated tools is: - ANSWERa force applied
perpendicular to the base of the material
Shear load in regards to explosive actuated tools is: - ANSWERa force applied
perpendicular to the fastener
Bending load in regards to explosive actuated tools is: - ANSWERshear force that is
applied at a distance for the surface base of the material creating a lever-type action on
the fastener
With a low velocity tool, what is a general rule of thumb for the placement and depth of
fasteners in concrete? - ANSWER3" from the edge and from each other
How long should you wait if a power actuated tool misfires? - ANSWER30 seconds
What is another name for a power saw? - ANSWERReciprocating saw
What determines the size (capacity) of a power hacksaw? - ANSWERLargest square
piece that can be cut
Why is the pressure removed from the blade of a power hack saw on the return stroke?
- ANSWERTo prevent damage to the blade
How is the speed of a power hacksaw expressed? - ANSWERStrokes per minute
Describe the characteristics of a bimetal power hacksaw blade - ANSWERHigh speed
tooth edge with a tough alloy steel back
