Self-Test B-2.2: Use Portable Power Tools

Complete Self-Test B-2.2 and check your answers.

  1. When should you ease up on the feed pressure when drilling?
    1. At multiple intervals
    2. As the drill breaks through the work
    3. As soon as the bit starts to cut
    4. When the bit will self-feed
  2. The drill speed should be increased if the material being drilled is                       .
    1. Clamped to the drill press
    2. Very hard
    3. Soft
    4. Ferrous
  3. The preferred cutting speed of a grinding wheel is at or just below what rate?
    1. 1725 feet per second
    2. The speed that causes sparking
    3. The maximum RPM rating
    4. 3000 RPM
  4. If the portable system feeding compressed air to a nailer or stapler does not contain a lubricator, what rule about lubrication should you follow when you use these tools?
  5. List the problems you will look for when you inspect the air-supply hose to a portable power tool.
  6. How should you store the hose for a portable air supply system?
  7. Dynamic air-line pressure is greater than static pressure.
    1. True
    2. False
  8. How should you store the hose for a portable air supply system?
  1. Name three uses for a portable grinder.
  2. List three important safety considerations when using an air chisel.
  3. At what speed does the pin move when a high-velocity tool is used?
  1. Any Hilti tool will accept any kind of fastener.
    1. True
    2. False
  2. When using a powder-actuated tool, approximately how much penetration is required for fastening into concrete?
  3. When using a powder-actuated tool, where must a fastening be made in a concrete block?
  4. When using a powder-actuated tool, what is the minimum thickness of steel that a fastener may be used on?
  5. What penetration should the tool-operator look for when setting a fastener into steel?
  6. What is the minimum distance you may set a powder-actuated fastener from a torch cut or weld?
  7. What type of concrete products should not accept a powder-actuated fastener?
  8. What is the rule about spalled areas?
  9. List five materials that cannot be fastened onto concrete or steel.
  10. If you use an extension cord with a non-double-insulated power tool, ensure that it is a three- wire type.
    1. True
    2. False

     

  11. If the incorrect voltage is applied to a power tool, it can be damaged.
    1. True
    2. False

     

  12. When you connect a power tool to a power supply, the switch on the tool must be in the                        position.
    1. On
    2. Off
  1. List three things that can damage a power cord.
  1. Clean plastic parts of a portable power tool with a soft cloth lightly moistened with:
    1. Thinner
    2. Alcohol
    3. Gasoline
    4. Soapy water
  2. Wear eye protection when you use saws and other power tools that kick up particles and dust.
    1. Thinner
    2. Alcohol

Use the sample regulations provided to answer the following:

  1. You can only use a high-velocity tool if a low-velocity tool will not complete the fastening task.
    1. True
    2. False
  2. If a powder-actuated tool misfires, the operator must hold the tool firmly against the work surface for at least                        seconds.
    1. 15
    2. 10
    3. 5
    4. 0
  3. A powder-actuated tool fastener must not be driven into steel within                        of an edge.
    1. 26 mm
    2. 20 mm
    3. 16 mm
    4. 13 mm
  4. A low-velocity, powder-actuated tool fastener may not be driven into masonry materials within                         of an unsupported edge.
    1. 25 mm
    2. 50 mm
    3. 75 mm
    4. 100 mm
  5. A powder-actuated tool must not be used in an explosive or flammable atmosphere.
    1. True
    2. False
  1. A powder-actuated tool fastener must not be driven into steel within                        of a weld.
    1. 25 mm
    2. 50 mm
    3. 75 mm
  2. A powder-actuated tool must not be pointed at any person.
    1. True
    2. False

Answer Key: Self-Test B-2.2 is on the next page.

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