Millwright Level 1
What is a natural abrasive? - CORRECT ANSWER-made of natural material rather
than synthetic
Under properties of abrasives, to what does the term hardness refer? - CORRECT
ANSWER-ability of a material to scratch or penetrate another material
The ____ is the part of the wheel that holds the grains together - CORRECT
ANSWER-bond
Markings for the wheel identification can be found on the _______ - CORRECT
ANSWER-Blotter
What is the recommended speed to run a grinding wheel? - CORRECT ANSWER-
Never run it faster that the max RPM of the grinding wheel
How should you start a grinder? - CORRECT ANSWER-Stand off to the side and
wait a full minute
Is 46 or 60 the coarser grit? - CORRECT ANSWER-46
What are the 2 most commonly used abrasive materials? - CORRECT ANSWER-
Aluminum oxide and silicone carbide
For what purpose is the diamond dresser used? - CORRECT ANSWER-When a
very fine finish is required
What is the purpose of ring test? - CORRECT ANSWER-to check for cracks
If a grinding wheel makes a ringing sound what does that mean? - CORRECT
ANSWER-wheel is not cracked
What is the purpose of truing a grinding wheel? - CORRECT ANSWER-Restores
the shape of the wheel and makes the outer surface of the wheel concentric with
its bore
An out of balance wheel: - CORRECT ANSWER-vibrates
Belt grinders are useful for: - CORRECT ANSWER-quickly deburring and
chamfering a workpiece
,On a pedestal grinder, the gap between the grinding wheel and work rest should
not exceed: - CORRECT ANSWER-1/8 inch
The kind of abrasive material used in grinding wheels for general purpose
applications is: - CORRECT ANSWER-aluminum oxide
A blotter is used on a grinding wheel to: - CORRECT ANSWER-protect 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: - CORRECT ANSWER-1/3 the diameter of the wheel
The best wheel to use for cleaning scale and dirt off a workpiece is the: -
CORRECT ANSWER-wire wheel
What is the purpose of a GFCI? - CORRECT ANSWER-Senses drop in current and
switches power off
The kind of abrasive material use in grinding wheels for general purpose
application is: - CORRECT ANSWER-aluminum oxide
Is it safe to carry a portable grinder by the power cord? - CORRECT ANSWER-
False
Is it safe to use standard sockets with electric impact wrenches - CORRECT
ANSWER-False
The larger the power drill, the slower the RPMs and the higher the torque -
CORRECT ANSWER-True
Can you use conventional drill bits with a hammer drill? Why or why not? -
CORRECT ANSWER-Yes of the hammer drill has a switch to turn off hammer
action
Most cordless drills have torque control - CORRECT ANSWER-True
Prolonged use of power or air tools can cause carpal tunnel sydrome - CORRECT
ANSWER-True
Is it safe to run an impact wrench with a universal joint and socket attached -
CORRECT ANSWER-No because it may throw off attachments
What conditions would you use a GFCI - CORRECT ANSWER-Wet conditions
What 3 things does a GFCI protect: - CORRECT ANSWER-1. Overload 2.
Overcurrent 3. Ground fault protection
, A GFCI prevents all electrical shocks - CORRECT ANSWER-False
Higher voltage on a battery means: - CORRECT ANSWER-Greater power of tool
What type of power load must be used in the low velocity tool? Why? - CORRECT
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: -
CORRECT 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? -
CORRECT ANSWER-Could be set off causing serious injury or death
Fasteners used in explosive actuated tools are: - CORRECT ANSWER-
Manufactured from special steel and tempered
A drive pin is a fastener used to: - CORRECT ANSWER-Permanently attach one
material to another
What is base material? - CORRECT ANSWER-Material which the fastener shank is
driven into
To determine the sustainability of a base material, use a fastener as a centre
punch struck by a single average hammer blow. If the fastener is blunted (
meaning it can't fasten) the material is too: - CORRECT ANSWER-Hard
To determine the sustainability of a base material, use a fastener as a centre
punch struck by a single average hammer blow. If the fastener penetrates easily,
do not fasten because the material is too: - CORRECT ANSWER-Soft
To determine the sustainability of a base material, use a fastener as a centre
punch struck by a single average hammer blow. If the material cracks or shatters,
do not fasten because the material is too: - CORRECT ANSWER-Brittle
A threaded knurled pin is designed for what material - CORRECT ANSWER-Mild
steel
To be a qualified operator of an explosive actuated tool you must posses: -
CORRECT ANSWER-training in the use of each tool and familiarity with local
safety regulations
OH&S states that operators of explosive actuate tools should always wear: -
CORRECT ANSWER-Eye protection
What is a natural abrasive? - CORRECT ANSWER-made of natural material rather
than synthetic
Under properties of abrasives, to what does the term hardness refer? - CORRECT
ANSWER-ability of a material to scratch or penetrate another material
The ____ is the part of the wheel that holds the grains together - CORRECT
ANSWER-bond
Markings for the wheel identification can be found on the _______ - CORRECT
ANSWER-Blotter
What is the recommended speed to run a grinding wheel? - CORRECT ANSWER-
Never run it faster that the max RPM of the grinding wheel
How should you start a grinder? - CORRECT ANSWER-Stand off to the side and
wait a full minute
Is 46 or 60 the coarser grit? - CORRECT ANSWER-46
What are the 2 most commonly used abrasive materials? - CORRECT ANSWER-
Aluminum oxide and silicone carbide
For what purpose is the diamond dresser used? - CORRECT ANSWER-When a
very fine finish is required
What is the purpose of ring test? - CORRECT ANSWER-to check for cracks
If a grinding wheel makes a ringing sound what does that mean? - CORRECT
ANSWER-wheel is not cracked
What is the purpose of truing a grinding wheel? - CORRECT ANSWER-Restores
the shape of the wheel and makes the outer surface of the wheel concentric with
its bore
An out of balance wheel: - CORRECT ANSWER-vibrates
Belt grinders are useful for: - CORRECT ANSWER-quickly deburring and
chamfering a workpiece
,On a pedestal grinder, the gap between the grinding wheel and work rest should
not exceed: - CORRECT ANSWER-1/8 inch
The kind of abrasive material used in grinding wheels for general purpose
applications is: - CORRECT ANSWER-aluminum oxide
A blotter is used on a grinding wheel to: - CORRECT ANSWER-protect 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: - CORRECT ANSWER-1/3 the diameter of the wheel
The best wheel to use for cleaning scale and dirt off a workpiece is the: -
CORRECT ANSWER-wire wheel
What is the purpose of a GFCI? - CORRECT ANSWER-Senses drop in current and
switches power off
The kind of abrasive material use in grinding wheels for general purpose
application is: - CORRECT ANSWER-aluminum oxide
Is it safe to carry a portable grinder by the power cord? - CORRECT ANSWER-
False
Is it safe to use standard sockets with electric impact wrenches - CORRECT
ANSWER-False
The larger the power drill, the slower the RPMs and the higher the torque -
CORRECT ANSWER-True
Can you use conventional drill bits with a hammer drill? Why or why not? -
CORRECT ANSWER-Yes of the hammer drill has a switch to turn off hammer
action
Most cordless drills have torque control - CORRECT ANSWER-True
Prolonged use of power or air tools can cause carpal tunnel sydrome - CORRECT
ANSWER-True
Is it safe to run an impact wrench with a universal joint and socket attached -
CORRECT ANSWER-No because it may throw off attachments
What conditions would you use a GFCI - CORRECT ANSWER-Wet conditions
What 3 things does a GFCI protect: - CORRECT ANSWER-1. Overload 2.
Overcurrent 3. Ground fault protection
, A GFCI prevents all electrical shocks - CORRECT ANSWER-False
Higher voltage on a battery means: - CORRECT ANSWER-Greater power of tool
What type of power load must be used in the low velocity tool? Why? - CORRECT
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: -
CORRECT 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? -
CORRECT ANSWER-Could be set off causing serious injury or death
Fasteners used in explosive actuated tools are: - CORRECT ANSWER-
Manufactured from special steel and tempered
A drive pin is a fastener used to: - CORRECT ANSWER-Permanently attach one
material to another
What is base material? - CORRECT ANSWER-Material which the fastener shank is
driven into
To determine the sustainability of a base material, use a fastener as a centre
punch struck by a single average hammer blow. If the fastener is blunted (
meaning it can't fasten) the material is too: - CORRECT ANSWER-Hard
To determine the sustainability of a base material, use a fastener as a centre
punch struck by a single average hammer blow. If the fastener penetrates easily,
do not fasten because the material is too: - CORRECT ANSWER-Soft
To determine the sustainability of a base material, use a fastener as a centre
punch struck by a single average hammer blow. If the material cracks or shatters,
do not fasten because the material is too: - CORRECT ANSWER-Brittle
A threaded knurled pin is designed for what material - CORRECT ANSWER-Mild
steel
To be a qualified operator of an explosive actuated tool you must posses: -
CORRECT ANSWER-training in the use of each tool and familiarity with local
safety regulations
OH&S states that operators of explosive actuate tools should always wear: -
CORRECT ANSWER-Eye protection
