Exam 2: Welding Safety

Because electric tools spark, portable electric tools should never be started or operated in the presence of propane, natural gas, gasoline, paint thinner, ____ , or other flammable vapors.

Cylinders equipped with a valve protection cap must have the cap in place unless the cylinder is ____.

Acetylene cylinders that have been lying on their sides must stand upright for ____ or more before they are used.

The symbol for a type D extinguisher is a ____ with the letter D in the center.

Both chromium and zinc are plating materials used to prevent iron or steel from rusting.

Welding cables must never be spliced within 10 ft of the ____________________ holder.

It is dangerous to store fuel and oil in the same toolbox as regulators and ____.

Guidelines for the respiratory protection program are available from the NIOSH office in Washington, DC.

Ultraviolet light can pass through light-colored clothing.

Most electrical equipment in a welding shop is powered by alternating-current (AC) sources having input voltages ranging from 115 to ____________________ volts.

During use, the adjustable wrench should be adjusted tightly on the nut and pushed so that most of the force is on the ____.

If a nonferrous stone is used to grind ____, the stone is quickly worn away.

A fire extinguisher works by breaking the fire triangle of heat, fuel, and ____.

Shears work like powerful ____.

Material specification data sheets are often called ____________________.

Safety boots with steel toes should be avoided in welding shops.

All welding and cutting processes produce undesirable by-products.

Ozone is very irritating to all mucous membranes.

Only two-wire, grounded extension cords connected to properly grounded, two-wire receptacles should be used with portable power tools.

First-degree burns have occurred when the surface of the skin is severely damaged, resulting in the formation of blisters and possible breaks in the skin.