NCCER ELECTRICAL LEVEL 2 EXAM SCRIPT 2025/2026
QUESTIONS WITH ANSWERS GUARANTEE A+
✔✔Stripped wire should be inserted into the barrel of the crimper until _____. - ✔✔The
insulation butts against the forward stop
✔✔Which of the following eliminates the need for taping and the use of filler tape? -
✔✔Motor connection kit
✔✔How can you determine the wire size that can be used effectively with an insulated
barrel crimp connector? - ✔✔It is indicated by the color-coding of the insulation on the
connector
✔✔Which of the following is true of drain wires in fire alarm and instrumentation cable? -
✔✔Only one end is typically grounded
✔✔Before a splice or connection can be made to a Type THHN conductor, the _____. -
✔✔Conductor ends must be stripped and cleaned
✔✔Heat-shrink insulators are intended to provide _____. - ✔✔Strain relief and much
protection
✔✔A good electrical connection should ____. - ✔✔Be mechanically and electrically
secure
✔✔Connectors designed for the use with aluminum have ________. - ✔✔Tin playing
✔✔When selecting the correct connector size for MC cable _________. - ✔✔Refer to
the manufactures literature.
✔✔Wire connectors marked only with the wire size should only be used on _____. -
✔✔Copper conductors
✔✔The type of heat-shrink tubing that provides a high temperature rating and is
considered to be the best overall in terms of physical, electrical, and chemical protection
is ________. - ✔✔Teflon
✔✔Stub connections are used ______. - ✔✔Where there is insufficient room to make
and in line connection.
✔✔_____ ____ electrical tapes provide a heat-stable insulation for hot-spot applications
such as furnace and oven controls, motor leads and switches. - ✔✔Glass cloth
, ✔✔To properly install heat-shrink conductors,_____. - ✔✔Slip the insulator over the
connector and apply heat for a few seconds
✔✔When stripping conductors, be sure to _____. - ✔✔Cut the insulation so that no
frayed pieces or threads extend past the point of cut off
✔✔When used in control cable, which of the following must be grounded in order to be
effective? - ✔✔Drain wires
✔✔Adhesive tape that has been manufactured from a nonconductive material and is
used for covering wire joints and exposed parts. - ✔✔Insulating tape
✔✔The metal covering of a cable that reduces the effects of electromagnetic noise. -
✔✔Shielding
✔✔A connector used to join 2 different size conductors. - ✔✔Reducing Connector
✔✔The force factor of a crimping tool that is multiplied by the hand force to give the
total force. - ✔✔Mechanical Advantage (MA)
✔✔The act of separating the braid in a coaxial conductor. - ✔✔Grooming
✔✔A wire that is attached to a coaxial connector to allow a path to ground from the
outer shield. - ✔✔Drain Wire
✔✔The maximum amount of current that a lug can safely handle at its rated voltage. -
✔✔Amperage Capacity
✔✔An abbreviation for aluminum and copper - ✔✔AL-CU
✔✔The connection of a cable. - ✔✔Termination
✔✔A device used for connecting cables. - ✔✔Terminal
✔✔A group of wires, usually stranded or braided. - ✔✔Strand
✔✔The electrical and mechanical connection between 2 pieces of cable. - ✔✔Splice
✔✔A connector applied using pressure to form a cold weld between the conductor and
the connector. - ✔✔Pressure Connector
✔✔A device for terminating a conductor to facilitate the mechanical connection. -
✔✔Lug
QUESTIONS WITH ANSWERS GUARANTEE A+
✔✔Stripped wire should be inserted into the barrel of the crimper until _____. - ✔✔The
insulation butts against the forward stop
✔✔Which of the following eliminates the need for taping and the use of filler tape? -
✔✔Motor connection kit
✔✔How can you determine the wire size that can be used effectively with an insulated
barrel crimp connector? - ✔✔It is indicated by the color-coding of the insulation on the
connector
✔✔Which of the following is true of drain wires in fire alarm and instrumentation cable? -
✔✔Only one end is typically grounded
✔✔Before a splice or connection can be made to a Type THHN conductor, the _____. -
✔✔Conductor ends must be stripped and cleaned
✔✔Heat-shrink insulators are intended to provide _____. - ✔✔Strain relief and much
protection
✔✔A good electrical connection should ____. - ✔✔Be mechanically and electrically
secure
✔✔Connectors designed for the use with aluminum have ________. - ✔✔Tin playing
✔✔When selecting the correct connector size for MC cable _________. - ✔✔Refer to
the manufactures literature.
✔✔Wire connectors marked only with the wire size should only be used on _____. -
✔✔Copper conductors
✔✔The type of heat-shrink tubing that provides a high temperature rating and is
considered to be the best overall in terms of physical, electrical, and chemical protection
is ________. - ✔✔Teflon
✔✔Stub connections are used ______. - ✔✔Where there is insufficient room to make
and in line connection.
✔✔_____ ____ electrical tapes provide a heat-stable insulation for hot-spot applications
such as furnace and oven controls, motor leads and switches. - ✔✔Glass cloth
, ✔✔To properly install heat-shrink conductors,_____. - ✔✔Slip the insulator over the
connector and apply heat for a few seconds
✔✔When stripping conductors, be sure to _____. - ✔✔Cut the insulation so that no
frayed pieces or threads extend past the point of cut off
✔✔When used in control cable, which of the following must be grounded in order to be
effective? - ✔✔Drain wires
✔✔Adhesive tape that has been manufactured from a nonconductive material and is
used for covering wire joints and exposed parts. - ✔✔Insulating tape
✔✔The metal covering of a cable that reduces the effects of electromagnetic noise. -
✔✔Shielding
✔✔A connector used to join 2 different size conductors. - ✔✔Reducing Connector
✔✔The force factor of a crimping tool that is multiplied by the hand force to give the
total force. - ✔✔Mechanical Advantage (MA)
✔✔The act of separating the braid in a coaxial conductor. - ✔✔Grooming
✔✔A wire that is attached to a coaxial connector to allow a path to ground from the
outer shield. - ✔✔Drain Wire
✔✔The maximum amount of current that a lug can safely handle at its rated voltage. -
✔✔Amperage Capacity
✔✔An abbreviation for aluminum and copper - ✔✔AL-CU
✔✔The connection of a cable. - ✔✔Termination
✔✔A device used for connecting cables. - ✔✔Terminal
✔✔A group of wires, usually stranded or braided. - ✔✔Strand
✔✔The electrical and mechanical connection between 2 pieces of cable. - ✔✔Splice
✔✔A connector applied using pressure to form a cold weld between the conductor and
the connector. - ✔✔Pressure Connector
✔✔A device for terminating a conductor to facilitate the mechanical connection. -
✔✔Lug
