Brav 1A Special Exam

Never leave a chuck-key in a drill (a)   or a drill press.

Disconnect the tool from its power source when replacing the drill bit or when (a)   is performed on a power tool.

Since water conducts electricity, great care must be taken to avoid handling electrical (a)   of all kinds, specially when standing on a wet surface or when wearing wet shoes.

Eye (a)   must always be worn when handling compressed gases.

Never use a cylinder that cannot be positively (a)   .

When large cylinders are moved, ensure that they are securely attached to the correct trolley or (a)   .

Do not use compressed gas or compressed air to blow away dust and (a)   , as the resultant flying particles are dangerous

Never direct high-pressure gas to a (a)   .

Gas cylinders chained to a wall for safety with (a)   caps covering the valves at the top of each cylinder.

The most common used on commercial aircraft being (a)   and oxygen.