Licensed Electrical Contractor Licensed Electrical Contractor OSHA Safety Standards Questions and Answers 3

Question 1

Under OSHA 29 CFR 1910.305, what type of wiring method is prohibited in hazardous (classified) locations unless specifically approved for the purpose?

Accepted Answer

Flexible cord

Answer

Flexible cords are generally prohibited in hazardous locations because they are more susceptible to damage and do not provide the same level of protection as rigid wiring methods.

Question 2

According to OSHA's permit-required confined space standard, what electrical safety precaution must be taken before an electrician enters a confined space containing energized conductors?

Accepted Answer

All energy sources must be locked out and tagged out, and the atmosphere tested

Answer

OSHA requires all energy sources in permit-required confined spaces to be locked out and tagged out, with atmospheric testing completed before entry.

Question 3

What does OSHA require regarding the use of extension cords on construction sites under 29 CFR 1926.405?

Accepted Answer

Extension cords must be of the three-wire type and designed for hard or extra-hard usage

Answer

OSHA requires that extension cords used on construction sites be three-wire type and rated for hard or extra-hard usage to withstand jobsite conditions.

Question 4

Under OSHA 29 CFR 1910.335, when is an employer required to provide and ensure the use of electrical protective equipment such as insulated gloves?

Accepted Answer

Whenever employees are exposed to electrical hazards that have not been deenergized or guarded

Answer

OSHA requires electrical protective equipment whenever employees face electrical hazards from energized or inadequately guarded parts, regardless of voltage level.

Question 5

According to OSHA, what is the required frequency for inspecting electrical protective equipment such as rubber insulating gloves?

Accepted Answer

Before each use and at regular intervals not exceeding six months

Answer

OSHA and ASTM standards require rubber insulating gloves to be visually inspected before each use and electrically tested at intervals not exceeding six months.

Licensed Electrical Contractor Practice Test

Licensed Electrical Contractor Practice Test

Licensed Electrical Contractor Licensed Electrical Contractor OSHA Safety Standards Questions and Answers 3