Line Safety

Why is using compressed air to clean clothing considered unsafe?

It can drive debris into the skin or bloodstream

Why must fire extinguishers rated 20B and 80B be available near welding operations?

They cover a wide area and can handle flammable liquid fires

Why is bending or kinking an electrical cord a fire hazard?

It increases current in the damaged strands, causing overheating

Why must technicians follow the maintenance manual when securing helicopter rotors?

Improper methods can damage rotor bearings

What is the correct action when a damaged air hose is discovered?

Replace it immediately

Why must ground crew remain visible to pilots during aircraft operation?

Pilots have limited visibility from the cockpit

What is the primary reason for requiring a fire watch during hangar welding?

To monitor for delayed ignition from sparks

How does tool control reduce the risk of FOD?

By preventing tool loss or misplacement around aircraft

Why is it critical to stop the lathe before measuring the workpiece?

To avoid injury from rotating components

What is the greatest danger of approaching a helicopter from the rear?

The tail rotor is nearly invisible and can cause fatal injuries

Why is hearing protection required when using pneumatic tools on the flight line?

These tools exceed safe noise levels and can cause permanent hearing loss

What is the primary risk of heat generation in electrical systems during aircraft maintenance?

Heat may degrade insulation, leading to short circuits and fire

What is the proper way to approach a helicopter on the ground?

From the front, in the pilot's field of vision

Which best describes the role of a pressure regulator during tire inflation?

Prevents overinflation and potential blowouts

What's the safest method for stopping a lathe chuck?

Letting it stop naturally

What makes FOD such a critical concern on the flight line?

It can damage engines, tires, or other aircraft systems

What does the blue section of a material safety diamond indicate?

Health hazard

Which best describes the reason only qualified personnel should perform welding on aircraft?

The risk of fire, structural damage, or aircraft hazard is too high

What is the purpose of using proper flange size on a grinder?

Reduce vibration and wear on wheels

What advantage do SDSs have over the older MSDS format?

SDSs provide standardized layout for quicker hazard recognition