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NCCER Module 4 versions - Power Tools
Questions and Correct Answers/ Latest
Already Graded
Auger Bit
Ans: A drill bit with a spiral cutting edge for boring holes in wood and
other materials.
Carbide
Ans: A very hard material made of carbon and one or more heavy
metals. Commonly used in one type of saw blade.
Chuck
A clamping device that holds an attachment; for example, the
chuck of the drill holds the drill bit.
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Ans:
Chuck Key
Ans: A small, T-shaped steel piece used to open and close the chuck on
power drills.
Alternating Current (AC)
Ans: The common power supplied to most all wired devices, where the
current reverses its direction many times per second. AC power is the type
of power generated and distributed throughout settled areas.
Countersink
Ans: A bit or drill used to set the head of a screw at or below the surface
of the material.
Direct Current (DC)
Ans: An electric power supply where the current flows in one direction
only. DC power is supplied by batteries and by transformer-rectifiers that
change AC power to DC.
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Ans:
Forstner Bit
A bit designed for use in wood or similar soft material. The design
allows it to drill a flat-bottom blind hole in material.
Ground Fault Circuit Interrupter (GFCI)
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.
Ground Fault Protection
Ans: Protection against short circuits; a safety device cuts power off as
soon as it senses any imbalance between incoming and outgoing current.
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Ans:
Masonry Bit
Ans: A drill bit with a carbide tip designed to penetrate materials such as
stone, brick, or concrete.
Revolutions Per Minute (rpm)
The rotational speed of a motor or shaft, based on the number of
times it rotates each minute.
Shank
Ans: The smooth part of a drill bit that fits into the chuck.
Trigger Lock
Ans: A small lever, switch, or part that can be used to activate a locking
catch or spring to hold a power tool trigger in the operating mode
without finger pressure.
NCCER Module 4 versions - Power Tools
Questions and Correct Answers/ Latest
Already Graded
Auger Bit
Ans: A drill bit with a spiral cutting edge for boring holes in wood and
other materials.
Carbide
Ans: A very hard material made of carbon and one or more heavy
metals. Commonly used in one type of saw blade.
Chuck
A clamping device that holds an attachment; for example, the
chuck of the drill holds the drill bit.
,2|Page
Ans:
Chuck Key
Ans: A small, T-shaped steel piece used to open and close the chuck on
power drills.
Alternating Current (AC)
Ans: The common power supplied to most all wired devices, where the
current reverses its direction many times per second. AC power is the type
of power generated and distributed throughout settled areas.
Countersink
Ans: A bit or drill used to set the head of a screw at or below the surface
of the material.
Direct Current (DC)
Ans: An electric power supply where the current flows in one direction
only. DC power is supplied by batteries and by transformer-rectifiers that
change AC power to DC.
,3|Page
Ans:
Forstner Bit
A bit designed for use in wood or similar soft material. The design
allows it to drill a flat-bottom blind hole in material.
Ground Fault Circuit Interrupter (GFCI)
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.
Ground Fault Protection
Ans: Protection against short circuits; a safety device cuts power off as
soon as it senses any imbalance between incoming and outgoing current.
, 4|Page
Ans:
Masonry Bit
Ans: A drill bit with a carbide tip designed to penetrate materials such as
stone, brick, or concrete.
Revolutions Per Minute (rpm)
The rotational speed of a motor or shaft, based on the number of
times it rotates each minute.
Shank
Ans: The smooth part of a drill bit that fits into the chuck.
Trigger Lock
Ans: A small lever, switch, or part that can be used to activate a locking
catch or spring to hold a power tool trigger in the operating mode
without finger pressure.
