Iron or steel hand tools may produce sparks that can be an ignition source around flammable substances. Where this hazard exists, spark-resistant tools made of non-ferrous materials should be used: A. True B. False

Hazardous moving parts, the risk of electrical shock or burns, flying particles at hundreds of RPMs, as well as the risk of fire or explosion from sparks make improper use of power tools highly dangerous: A. True B. False

Powder-actuated tools operate like a loaded gun and must be treated with extreme caution. In fact, they are so dangerous that they must be operated only by specially trained employees: A. True B. False

Fire cracker manufacturers use metal salts to bring color to firework displays. Seeing yellow sparks indicates the presence of what metal salt?*CopperCalciumPotassiumSodium

Because electric power tools use little electricity, the risk of shock is not a significant hazard: A. True B. False

If you hold a piece of iron wire with a pair of tongs inside acandle flame or a Bunsen burner flame, what will you observe?Will it produce a flame?