IPC 620 CORRECT EXAMS ANSWERS AND
QUESTIONS SET A+
✔✔flat - cable - ✔✔(1) any cable with two smooth or corrugated but essentially flat
surfaces
(2) two or more parallel, round or flat, conductors that are contained in the same plane
of a flat insulating basis material
✔✔reference edge - cable - ✔✔the edge of a cable or conductor from which
measurements are made
✔✔ribbon - cable - ✔✔(1) a flat cable of individually insulated conductors lying parallel
and held together by means of adhesive film laminate
(2) a flat cable with round connectors
✔✔camber - ✔✔the planar deflection of a flat cable or flexible laminate from a straight
line
✔✔circular mil - ✔✔the area of a circle on mil [0.001 in] in diameter
✔✔circumferential crimp - ✔✔final configuration of a terminal based barrel made when
crimping dies completely surround the barrel and form symmetrical indentations
✔✔closing - ✔✔an operation where all leads are to be covered and the jacket insulation
is captured by a type of hood or cover
✔✔cold flow - ✔✔deformation of the insulation as a result of mechanical force or
pressure (not due to heat softening)
✔✔compression connector - ✔✔connector crimped by an externally applied force; the
conductor is also crimped by such a force inside the tube-like connector body.
Compression connectors are in very intimate contact with the two ends of the
conductors being spliced
, ✔✔concentricity - ✔✔in a wire or cable, it is the measurement of the location of the
center of the conductor with respect to the geometric center of the surrounding
insulation
✔✔conductor - ✔✔an uninsulated wire or the conductor of an insulated wire suitable for
carrying electrical current
✔✔flat - conductor - ✔✔a regular conductor that is wider than it is high
✔✔conduit - ✔✔a tube in which insulated wires and cables are passed
✔✔continuity - ✔✔(1) a continuous path for the flow of current in an electrical circuit
(2) an uninterrupted path for the flow of an electrical current in a circuit
✔✔core - ✔✔in cables, a component or assembly of components over which additional
components (shield, sheath, ect.) are applied
✔✔corona - ✔✔a discharge due to ionization of air around a conductor due to a
potential gradient exceeding a certain critical value
✔✔coupling ring - ✔✔a device used on cylindrical connectors to lock a plug and
receptacle together
✔✔crack in molding - ✔✔a location where the molded material has visual separation
✔✔creep - ✔✔(1) the dimensional change with time of a material under load
(2) time-dependent strain occurring under stress
✔✔crimp - ✔✔final configuration of a terminal or contact barrel formed by the
compression of terminal barrel and wire
✔✔crimp height - ✔✔a measurement taken of the overall wire barrel height after the
terminal or contact has been crimped
✔✔daisy chain - ✔✔connections in a series that render all of the connections common
✔✔dielectric - ✔✔(1) any insulating medium that intervenes between two conductors
(2) a material with a high resistance to the flow of direct current, and which is capable of
being polarized by an electric field
✔✔dielectric breakdown - ✔✔the complete failure of a dielectric material that is
characterized by a disruptive electrical discharge through the material that is due to
deterioration of material or due to an excessive sudden increase in applied voltage
QUESTIONS SET A+
✔✔flat - cable - ✔✔(1) any cable with two smooth or corrugated but essentially flat
surfaces
(2) two or more parallel, round or flat, conductors that are contained in the same plane
of a flat insulating basis material
✔✔reference edge - cable - ✔✔the edge of a cable or conductor from which
measurements are made
✔✔ribbon - cable - ✔✔(1) a flat cable of individually insulated conductors lying parallel
and held together by means of adhesive film laminate
(2) a flat cable with round connectors
✔✔camber - ✔✔the planar deflection of a flat cable or flexible laminate from a straight
line
✔✔circular mil - ✔✔the area of a circle on mil [0.001 in] in diameter
✔✔circumferential crimp - ✔✔final configuration of a terminal based barrel made when
crimping dies completely surround the barrel and form symmetrical indentations
✔✔closing - ✔✔an operation where all leads are to be covered and the jacket insulation
is captured by a type of hood or cover
✔✔cold flow - ✔✔deformation of the insulation as a result of mechanical force or
pressure (not due to heat softening)
✔✔compression connector - ✔✔connector crimped by an externally applied force; the
conductor is also crimped by such a force inside the tube-like connector body.
Compression connectors are in very intimate contact with the two ends of the
conductors being spliced
, ✔✔concentricity - ✔✔in a wire or cable, it is the measurement of the location of the
center of the conductor with respect to the geometric center of the surrounding
insulation
✔✔conductor - ✔✔an uninsulated wire or the conductor of an insulated wire suitable for
carrying electrical current
✔✔flat - conductor - ✔✔a regular conductor that is wider than it is high
✔✔conduit - ✔✔a tube in which insulated wires and cables are passed
✔✔continuity - ✔✔(1) a continuous path for the flow of current in an electrical circuit
(2) an uninterrupted path for the flow of an electrical current in a circuit
✔✔core - ✔✔in cables, a component or assembly of components over which additional
components (shield, sheath, ect.) are applied
✔✔corona - ✔✔a discharge due to ionization of air around a conductor due to a
potential gradient exceeding a certain critical value
✔✔coupling ring - ✔✔a device used on cylindrical connectors to lock a plug and
receptacle together
✔✔crack in molding - ✔✔a location where the molded material has visual separation
✔✔creep - ✔✔(1) the dimensional change with time of a material under load
(2) time-dependent strain occurring under stress
✔✔crimp - ✔✔final configuration of a terminal or contact barrel formed by the
compression of terminal barrel and wire
✔✔crimp height - ✔✔a measurement taken of the overall wire barrel height after the
terminal or contact has been crimped
✔✔daisy chain - ✔✔connections in a series that render all of the connections common
✔✔dielectric - ✔✔(1) any insulating medium that intervenes between two conductors
(2) a material with a high resistance to the flow of direct current, and which is capable of
being polarized by an electric field
✔✔dielectric breakdown - ✔✔the complete failure of a dielectric material that is
characterized by a disruptive electrical discharge through the material that is due to
deterioration of material or due to an excessive sudden increase in applied voltage
