REVIEW QUESTIONS AND ANSWERS
2026
If a person's heart is out of rhythm due to an electrical shock, the solution is to do
[Blank]? - ANSWERShave a qualified person use emergency defibrillation equipment
One mA is a unit of measure for current equal to what? - ANSWERS0.001 amperes
Once a worker crosses a prohibited approach boundary, for safety purposes it is
assumed that [Blank]? - ANSWERSworker will make contact with an energized surface
A potential shock hazard exists when exposed to parts are energized at how many
volts? - ANSWERS50 V or more
A damaged power tool should be removed from service and [Blank]? - ANSWERShave
a DO NOT USE tag applied
The OSHA and NIOSH time-weighted averages (TWA) for exposure to a given chemical
relate to an average level of exposure consistent over a period of what amount of time?
- ANSWERS8 or 10 hours
For injury-related calculations and statistics, low voltage is considered to be anything
under 500 volts. True or False? - ANSWERSfalse 600 volts or less
Other than when the insulating value is in question, how frequently must rubber
protective equipment be electrically tested? - ANSWERSevery 6 months
On the job, it is best to wear personal clothing constructed of [Blank]? -
ANSWERScotton
How many more times are workers in the construction industry likely to be electrocuted
at work than all other industries combined? - ANSWERS4
Which of these statements correctly describes a double-insulated power tool? -
ANSWERSit can safely be used in place of a grounded tool
The gas that can reach explosive levels when mixed with oxygen and which is often
released by vented batteries is what? - ANSWERShydrogen
Per, OSHA, the proper PPE selected for entry into an arc flash hazard area should
protect the worker from first-degree burns. True or false? - ANSWERSFalse, second
degree burns