ECS Electrical Tools and Equipment Safety 2

Question 1

Which instrument must be used to confirm a circuit is de-energized as part of the safe isolation procedure?

Accepted Answer

An approved voltage indicator or test meter proved on a known live source before and after testing

Answer

A clamp meter measuring current

Answer

A standard lamp plugged into the circuit

Answer

A visual inspection of the isolator switch position

Question 2

What color coding typically identifies 110V reduced-voltage power tools on a construction site?

Accepted Answer

Yellow

Answer

Red

Answer

Blue

Answer

Orange

Question 3

What is the main purpose of a lockout/tagout (LOTO) procedure?

Accepted Answer

To isolate energy sources and prevent equipment from being accidentally re-energized during maintenance

Answer

To secure tools in a locked storage cabinet overnight

Answer

To lock the site gate during non-working hours

Answer

To tag tools with the owner's name

Question 4

How frequently should portable electrical tools undergo a formal visual inspection on an active construction site?

Accepted Answer

Before every use — or at minimum daily when in continuous use

Answer

Once per year only

Answer

Only when a fault is suspected

Answer

Once per month regardless of use

Question 5

What safety feature on a power tool prevents it from starting accidentally if it is dropped or the trigger is bumped?

Accepted Answer

Trigger lock-off or safety guard on the trigger

Answer

Speed selector switch

Answer

Voltage limiter circuit

Answer

Thermal cut-out

Question 6

When using an angle grinder on site, which PPE item is most critical in addition to standard safety equipment?

Accepted Answer

A full face shield to protect against flying sparks and disc fragments

Answer

Hearing protection only

Answer

Only safety boots

Answer

A high-visibility vest