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Millwright Level 1 Exam, 343 Questions with 100% Correct Answers | Verified | Updated 2024.
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Millwright Level 1 Exam, 343 Questions with 100% Correct Answers | Verified | Updated 2024.
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Millwright Level 1 Exam, 343 Questions with 100%Correct Answers | Verified | Updated 2024.
On a pedestal grinder, the gap between the grinding wheel and work rest should not exceed:
1/8 inch
The kind of abrasive material used in grinding wheels for general purpose applications is:
aluminum oxide
A blotter is used on a grinding wheel to:
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:
1/3 the diameter of the wheel
The best wheel to use for cleaning scale and dirt off a workpiece is the:
wire wheel
What is a natural abrasive?
made of natural material rather than synthetic
Under properties of abrasives, to what does the term hardness refer?
ability of a material to scratch or penetrate another material
The ____ is the part of the wheel that holds the grains together
bond
Markings for the wheel identification can be found on the _______
Blotter
What is the recommended speed to run a grinding wheel?
Never run it faster that the max RPM of the grinding wheel
How should you start a grinder?
Stand off to the side and wait a full minute
Is 46 or 60 the coarser grit?
46
What are the 2 most commonly used abrasive materials?
,Aluminum oxide and silicone carbide
For what purpose is the diamond dresser used?
When a very fine finish is required
What is the purpose of ring test?
to check for cracks
If a grinding wheel makes a ringing sound what does that mean?
wheel is not cracked
What is the purpose of truing a grinding wheel?
Restores the shape of the wheel and makes the outer surface of the wheel concentric with its bore
An out of balance wheel:
vibrates
Belt grinders are useful for:
quickly deburring and chamfering a workpiece
What is the purpose of a GFCI?
Senses drop in current and switches power off
The kind of abrasive material use in grinding wheels for general purpose application is:
aluminum oxide
Is it safe to carry a portable grinder by the power cord?
False
Is it safe to use standard sockets with electric impact wrenches
False
The larger the power drill, the slower the RPMs and the higher the torque
True
Can you use conventional drill bits with a hammer drill? Why or why not?
Yes of the hammer drill has a switch to turn off hammer action
Most cordless drills have torque control
True
Prolonged use of power or air tools can cause carpal tunnel sydrome
True
, Is it safe to run an impact wrench with a universal joint and socket attached
No because it may throw off attachments
What conditions would you use a GFCI
Wet conditions
What 3 things does a GFCI protect:
1. Overload 2. Overcurrent 3. Ground fault protection
A GFCI prevents all electrical shocks
False
Higher voltage on a battery means:
Greater power of tool
What type of power load must be used in the low velocity tool? Why?
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:
1. Grey 2. Brown 3. Green 4. Yellow 5. Red 6. Purple
Power loads should not be carried loosely in pockets or aprons. Why?
Could be set off causing serious injury or death
Fasteners used in explosive actuated tools are:
Manufactured from special steel and tempered
A drive pin is a fastener used to:
Permanently attach one material to another
What is base material?
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:
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:
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:
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