Exam (elaborations)
00104 Introduction to Power Tools- Questions & Answers
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00104 Introduction to Power Tools- Questions & Answers
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00104 Introduction to Power Tools-Questions & Answers
Powder-Actuated Tool Correct Ans-Used to drive steel pins or threaded steel studs directly
into masonry and steel. They eliminate the need for compressed air to operate the tool,
however they can be very dangerous. They look and fire like a gun and use the force of a
gunpowder load to drive the fastener into the material.
Pneumatic Nailer Correct Ans-AKA Nail guns are driven by compressed air traveling through
air lines connected to an air compressor. They are designed for specific purposes, such as
roofing, framing, siding, flooring, sheathing, trim, and finishing. They use specific types of nails.
Cordless Electric Nailer Correct Ans-Battery operated and have enough power to fasten pins,
straps, and clips to concrete and steel. They do not have the power that a. powder actuated tool
can generate, they are strong enough to handle most concrete fastening jobs. They do not need
a hose or training and certification.
Portable Hydraulic Jack Correct Ans-Used to move or lift heavy equipment and other heavy
material, to position heavy loads precisely, and to straighten or bend frames.
Whip Check Correct Ans-A cable attached to the ends of an air supply hose and a tool, or to
the ends of two hoses that are connected to each other, to prevent the hose from whipping
uncontrollably when charged with compressed air.
Twist Bit Correct Ans-A bit used to drill wood and plastics at high speeds or to drill metal at a
lower speed.
Forstner Bit Correct Ans-A bit used in wood or similar soft material which allows it to drill a
flat-bottomed blind hole in material.
, Masonry Bit Correct Ans-A drill bit with a carbide tip designed to penetrate materials such as
stone, brick, or concrete.
Paddle Bit (Spade bit) Correct Ans-Is used in wood. The bit size is measured by the paddle's
diameter, which generally ranges from 1/2 to 1 and 1/2 inches.
Auger Bit Correct Ans-A drill bit with a spiral cutting edge for boring holes in wood and other
materials.
Self-feed bit Correct Ans-A drill bit that uses a lead screw to pull the larger rear portion of
the bit into the wood, making it simple to drill larger holes.
Step drill bit Correct Ans-A drill bit that includes steps which enable the user to cut holes in
metal to a desired diameter.
Charge cycles Correct Ans-One complete charge and discharge cycle for a rechargeable
battery.
Amp hour (Ah) Correct Ans-A rating that describes the maximum amps a battery can provide
continuously for up to 60 minutes. Drawing more amps than the battery's rating is possible, but
it reduces the amount of time before the battery is drained.
Voltage rating Correct Ans-A measurement of the power the tool can deliver.
Ground fault protection Correct Ans-Protection against short circuits; a safety device cuts
power off as soon as it senses any imbalance between incoming and outgoing current
Ground Fault Circuit Interrupter (GFCI) Correct Ans-A circuit breaker designed to protect
people from electric shock and to protect equipment from damage by interrupting the flow of
electricity if a circuit fault occurs.
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