Electrical Awareness Flashback!


Congratulations, you’re almost done with the course!  However, let’s take a few minutes to reflect on the course content before you take the final exam. You will only get 2 chances to pass the final with a score of 80% or higher. 

If you aren’t confident in your knowledge of one of the following subjects, go back to the relevant lesson in the course to give it a review.

    • OSHA stands for Occupational Safety and Health Administration.
    • The closest you can ever safety get to a power line in a moving vehicle is 20’.
    • The proper level of hazard for a high voltage sign would be DANGER
    • When working near exposed energized parts, it is best to remove all jewelry.
    • Grounding drains current by means of physical electrical connection to Earth.
    • A 30-amp fuse is not okay to use on a 20-amp circuit because it provides the required 10-amp safety cushion.
    • Use of metal ladders is okay if the person on the larder cannot contact parts.
    • Elevated mechanical equipment working around 60KV overhead lines must maintain a clearance distance of 10”.
    • Explosion proof equipment is safe to use in hazardous atmospheres.
    • Under certain conditions, insulators can become conductors.
    • If you come across a piece of equipment that appears to be de-energized, but is not locked or tagged out, you would assume the equipment is energized or live and treat it as such.
    • Burned out fuses may not be replaced with aluminum foil to keep circuits closed if it will take no longer than one (1) hour to acquire a replacement fuses with the proper amperage.
    • A GFCI is fast acting in order to keep current and its duration so low that it won’t product serious injury.
    • When working with electricity it is best to stay dry and use all necessary PPE.
    • Grounding provides protection for overloaded/shorted circuits
    • Voltage is the measure of electrical force.
    • Flexible cords and cables may be used for temporary for a hand tool and/or used to repair a machine.
    • Most of OSHA’s electrical safety regulations are contained in 29 CFR 1910 Subpart S.