When not in use, hand-held electric power tools should be _____.
answer
Unplugged
Hand-held electric power tools should always be disconnected when not in use to prevent shock or fire hazards.
question
Machinery with rotating or reciprocating parts that are within seven feet of the floor or working platform requires what additional equipment?
answer
Effective guards
Effective guards shall be in place for machinery with rotating or reciprocating parts that are within seven feet of the floor or with a working platform.
question
Why must abrasive grinding wheels be inspected carefully and the spindle speed checked before mounting?
answer
Abrasive grinding wheels must be inspected carefully and the spindle speed checked before mounting to avoid improper mounting and to prevent the exploding of used wheels that may cause an injury.
question
Blade guards for both radial and circular table saws must automatically:
answer
Adjust to the thickness of the stock
Blade guards must automatically adjust to the thickness of the stock of the material being processed.
question
In addition to physical safeguards on all machinery, what else must an effective safeguarding system include?
answer
Specific and detailed training of workers
To have an effective safeguarding system, specific and detailed training of workers must also be included.
question
The minimum general safety requirements for machines include all these safeguards EXCEPT:
answer
Allow automatic start-up after power failures
Allowing automatic start-up of machines after power failure is not part of a general safety requirement, and may cause severe injuries.
question
Compressed air may be used for cleaning only if it is reduced to _____ P.S.I.
answer
30
For safe cleaning or dusting of clothing with compressed air, the p.s.i. setting must not exceed 30 p.s.i.
question
Which parts of machines that use abrasive wheels must be protected by safety guards?
answer
Spindle end, nut, and flange projections
Machines that use abrasive wheels must have safe guards that protect the spindle end, nut, and flange projections area to prevent injuries.
question
If electrical hand tools are equipped with a three-pronged power cord with one wire going to ground, the operator must be protected from electric shock by:
answer
GFCI
A ground fault circuit interruptor must be used with all electrical tools to prevent shock in case of a short circuit, or flaw in the tool if the tool is not double insulated by the manufacturer.
question
Employees using hand and power tools are best protected from hazards by employer-provided _____.
answer
PPE
Employer-provided PPE offers the best protection against hazards to employees working with hand and power tools.
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