You are working with alpha, beta and gamma sources and investigating their penetrative power. Which of the following is not a valid safety concern?use long handled forceps when handling equipmentstay a safe distance from equipment wherever possiblelong hair must be tied updo not handle the equipment with your hands

You are performing flame tests to determine the ions in an unknown sample. Which of the following is a valid safety concern?long hair must be tied upuse long forceps when handling materialsstay a safe distance from all materials wherever possibleuse thick gloves when handling materials

Handling: radioactive sources must not be handled directly and should only be used for the shortest time possible. R gloves should be worn and hands should be washed thoroughly after use.

Which of the following general precautions is important to safe power tool use and should be observed by the tool user?: A. Never yank the cord or the hose to disconnect it from the receptacle B. Disconnect tools when not in use, before servicing and when changing accessories such as blades, bits and cutters C. All observers should be kept at a safe distance away from the work area D. All of the above

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

Which of the following is not a general practice for the safe use of power tools?: A. Electric tools should be operated within their design limitations B. Gloves and safety footwear are recommended during use of electric tools C. When not in use, tools should be stored in a dry place D. Electric tools should be used in damp or wet