2w051 Set B Vol 1 Self Test 134 Questions with complete solutions

What safety precaution must you take before installing or changing a drill bit of an electric drill? CORRECT ANSWERS: Remove or disconnect the drill from the power source What do you do before drilling in metal or other hard surfaces? CORRECT ANSWERS: Use a center punch to mark the exact center of the hole to be drilled. What minimum personal protective equipment shall be used for all jobs using a bench grinder? CORRECT ANSWERS: Eye and face protection. How fast should an electric saw blade be spinning before it contacts the material to be cut? CORRECT ANSWERS: At full speed. List four safety precautions when dealing with pneumatic tools? CORRECT ANSWERS: (1) Inspect the air hose for cracks or other defects. If you identify defects, make repairs, or replace the hose before using. (2) Before connecting the air hose to the air outlet fitting, open the control valve momentarily. Then connect the hose to the fitting and open the valve again momentarily—this ensures the hose is clear of water and other foreign material. (3) Stop the flow of air to a pneumatic tool by closing the control valve at the compressed air outlet before connecting, disconnecting, adjusting, replacing, or repairing a pneumatic tool. (4) When using sockets, make sure they are designed specifically for pneumatic tools (impact sockets). Non-pneumatic accessories cannot withstand the stresses of pneumatic equipment and can result in damaged equipment and injury to personnel. How many psi are used for safe efficient operation of a pneumatic tool? CORRECT ANSWERS: 90 psi. What ensures the socket or attachment does not fly off an impact wrench? CORRECT ANSWERS: Spring-loaded ball bearing or socket lock. What does the torque regulator do for a pneumatic impact wrench? CORRECT ANSWERS: Reduces the possibility of shearing or damaging threads when installing nuts and bolts. Familiarity of what two things are prerequisites for safe operation of lifting devices? 2 CORRECT ANSWERS: The manual and equipment to be used What will be worn if there is a potential for injury from falling objects or moving equipment? CORRECT ANSWERS: Protective helmets and safety-toed boots. What are four items that can be used in conjunction with wire-rope slings when lifting munitions CORRECT ANSWERS: (1) Forklift. (2) Jammer (bomb lift truck). (3) Over-head hoist. (4) Crane.