CTSP Electrical Hazards and Utility Line Safety 3

Question 1

A co-worker is receiving an electrical shock and remains in contact with an energized source. The correct immediate action is to:

Accepted Answer

Do NOT touch the worker; de-energize the source or use a non-conductive object to separate them from the conductor

Answer

Grab the worker and pull them away from the source as quickly as possible

Answer

Douse the worker with water to break the electrical connection

Answer

Begin CPR while the worker is still in contact with the energized source

Question 2

After a worker receives an electrical shock and reports feeling unharmed, the supervisor should:

Accepted Answer

Have the worker evaluated by medical personnel, as delayed cardiac arrhythmia can occur hours after shock

Answer

Allow the worker to continue after a brief 15-minute rest

Answer

Have the worker wash off with water and return to duties

Answer

File an OSHA complaint before allowing work to resume

Question 3

Which condition significantly increases the electrical conductivity of a tree and elevates the hazard when working near energized conductors?

Accepted Answer

Moisture from rain, dew, or active sap flow

Answer

Winter dormancy with no leaf cover

Answer

The presence of dry, dead wood

Answer

Low-angle morning sunlight on the bark

Question 4

An 'arc flash' hazard in electrical safety is best described as:

Accepted Answer

An explosive release of energy from an electrical arc producing intense heat, light, pressure, and molten metal

Answer

A routine dielectric test performed on rubber insulating gloves

Answer

Sunlight reflecting off energized conductors that can temporarily blind workers

Answer

A grounding procedure used before contacting de-energized lines

Question 5

Rubber insulating PPE (gloves, blankets, sleeves) used near energized conductors must be:

Accepted Answer

Inspected before each use and tested at intervals specified by applicable standards

Answer

Inspected only annually by a certified electrician

Answer

Replaced every 6 months regardless of apparent condition

Answer

Shared among crew members to reduce equipment costs

Question 6

When a power line falls to the ground and a worker must move away from it, the correct escape technique is to:

Accepted Answer

Shuffle away with small steps, keeping feet as close together as possible to minimize step potential

Answer

Walk away using normal full-length strides to maximize distance quickly

Answer

Run quickly to gain maximum distance in minimum time

Answer

Jump with both feet landing simultaneously, then continue jumping clear of the area

Question 7

A tree crew notices that overhead conductors in their work zone are uninsulated and covered only by a gray plastic coating. The crew should assume these conductors are:

Accepted Answer

Energized and potentially at full line voltage — the covering is weather protection, not electrical insulation

Answer

Insulated and safe to contact incidentally with tools

Answer

Communication lines and therefore not energized at dangerous voltages

Answer

Neutral conductors that carry no voltage to ground