Chapter 11 Conductors, Connections, and Protection

___ is the process of joining metals by heat to make a strong electrical and mechanical connection.

Soldering

A circuit breaker is an OCPD with a mechanical mechanism that may manually or automatically open the circuit when an overload condition or short circuit occurs.

True

A ripcord is a cord included in a cable that aids in removing the outer jack.

True

___ is a hollow pipe used to protect conductors.

conduit

___ is two or more conductors grouped together within a common protective cover and used to connect individual components.

Cable

___ is two or more conductors grouped together and used to deliver power to a load by means of a plug.

Cord

A cold solder joint is a good electrical and mechanical connection caused by sufficient heat during soldering.

False

An overload is a condition that exists on an electrical circuit when the normal load current is exceeded.

False

___ is the method of using light to transport information from one location to another through thin filaments of glass or plastic.

Fiber optics

Insulated conductors are rated based on the current they may safely carry without damaging the insulation.

True

Wire sized by using a number, such as No. 12 or No. 14.

True

___ is any individual conductor.

Wire

___ cable is a cable that has an outer cover made of flexible galvanized steel.

armor clad

___ cable is used to transmit data from one location within a system to another location.

communication

A(n) ___ is a material that has very little resistance and permits electrons to move through it easily.

conductor

A(n) ___ connection is a connection in which two wires are held together by crimping them in a specially-designed fitting.

crimped

A(n) ___ is an OCPD with a fusible link that melts and opens the circuit when an overload condition or short circuit occurs.

fuse

A(n) ___ fuse is a fuse that may detect an overcurrent and open the circuit almost instantly.

non time delay

___ cable is a tough, plastic-sheathed cable that is normally made of a moisture-resistant, flame-retardant material.

non-metalic

A(n) ___ bend consists of two 45 degree angles on one piece of conduit.

off set

A(n) ___ is the condition that occurs when circuit current rises above the normal current level at which the load and/or the circuit is designed to operate.

overload

___ is the range of frequencies that is a device can accept within tolerable limits.

panel width

A(n) ___ splice is a splice that consists of twisting two wires together.

pigtail

A(n) ___ is the device at the end of a cord that connects the device to the electrical power supply by means of a receptacle.

plug

A(n) ___ plug is a plug in which one blade is wider than the other blade.

polarized

A(n) ___ is overcurrent that leaves the normal current-carrying path by going around the load and back to the power or ground source.

short circuit

A ___ splice is a splice that connects two wires together when one wire is to remain unbroken.

standard tap

A(n) ___ fuse is a fuse that may detect and remove a short circuit almost instantly, but allow small overloads to exist for a short period of time.

time delay

A(n) ___ splice is a splice that connects two wires that may be placed under a lot of mechanical strain.

western union

A(n) ___ is a solderless plastic connector that uses a tapered metal coil spring to twist wires together.

wire nuts

A(n) ___ is a tool that is designed to properly remove insulation from small gauge (normally AWG sizes No. 10 - No. 22) wires.

wire stripper