HCS3010 Part Four

Most electric house wires contain a hot wire; a neutral wire, and a ground wire. The hot wire is usually

• black or red

• red or white

• green or bare

• only white

The purpose of lockout or tagout procedures is to make sure that

• all electrical tools are properly grounded while repair is done

• no one enters unexpectedly and startles the worker doing repair

• a circuit breaker is not accidentally switched on while repair is done

• the repair worker is properly grounded to avoid electrocution

Which of the following statements is not a good electrical safety precaution?

• use only totally dry sticks to move electrical wires lying on the ground

• do not remove ground plugs from tools or extension cords

• use only wood or fiberglass ladders when close to power lines

• check for underground power lines before digging with heavy equipment

Fiberglass ladders have the advantage of!

• being the most durable

• not conducting electricity

• being the cheapest

• being the most stable

A straight/extension ladder should be placed against a wall so that the distance of its foot from the wall is what fraction of the length of the ladder?

• one third

• one sixth

• one eighth

• one quarter

Many ladder accidents are due to all reasons below except which one?

• improper placement of the ladder

• not tying two ladders together when necessary

• hanging tools from ladder ring

• overreaching