Question: 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.