NCCER Electrical Module 2 (Electrical Safety) Questions and Correct Answers

Under strict safety guidelines, which of the following should be used to discharge capacitors before working on de-energized circuits. safety shorting probe For safety, assume that any facility constructed before 1980 has? asbestos With of the following is the threshold at which a power source is considered high voltage in the context of safety? over 600V- 600Volts Insulated gloves must be inspected by the user? always and field checked The normal beating of a heart can be upset by an electrical current as small as? 75ma Which factor determins the outcome of an electrical shock? amount of current measured in AMPERES A live-dead-live test is conducted in order to? verify the circuit is de-energized You are required to be evaluated by a physician to ensure that you are physically fit to use which of the following types of protective equipment? Respirators Which of the following battery byproducts can be explosive when mixed with air? Hydrogen GAS The OSHA lockout-tagout rule protects workers from? potential exposure to hazardous energy sources Which of the following should have side rails that extend 36in (3Ft) above the top support point? ladders What must happen before any work may be performed in a confined space? a hazard review NFPA 70E provides practical guidance in? Hazzard assesment OSHA CFR 1910 is the standard for? general industry When a guardrail cannot be attached to a building a solution may be to install a? controlled access zone