It refers to the unit of intensity of light of one standard candle whose lights is concentrated at a point and the light source is assumed to be placed at the center of a hollow sphere of one foot radius.

Minimum extension of the VSTR above the roof.

Is perceived as a buzzing or clicking sound, and it is comprised of repeated echoes traversing back and forth between two non-absorbing parallel surfaces.

Maximum liquid depth for a septic tank

A grid elec’l conductor, usually a metal bar, hollow tube, or rod, w/c forms a connection between Elec’l circuits.

Is a circuit conductor between the service equipment & the branch circuit over current device.

Term applied to an atom or molecules w/c is not electrically balance (there is a loss or gain of one or more electrons).

The force that makes electrons move in a circuit

Father of Electricity.

A device consisting of several cells connected together & generate EMF by chemical action.

A box w/ blank cover w/c is inserted in one or more runs or raceways to facilitate pulling in the conductors. (Safety)

An assembly consisting of a pulley wheel, side plates, shaft and bearing over which a cable of roped is passed.

The amount of heat which is absorbed or evolved in changing the state of a substance without changing its temperature.

The product of potential difference and current in a direct-current circuit, In a alternating current circuit, power is equal to the product of the effective voltage, the effective current and the cosine of the phase angle between current and voltage.

The SI unit of power, equal to one joule per second or to the power represented by a current of one ampere flowing across a potential difference of one volt.

An amount of power, esp. the power required to operate an electrical device or appliance.

Potential difference or electromotive force expressed in volts; analogous to pressure in water flow.

The SI unit of potential difference and electromotive force, defined as the difference of electric potential between two points of a conductor carrying constant current of one ampere.

A signaling device, usually electrically operated, giving an audible signal & a visual indication when energized by pressing a button.

The supplying of utilities, as water, gas and electricity, required or demanded by the public.

A copper or carbon conductor serving to maintain electric contact between fixed and moving elements in a motor or generator.

An electric current flowing in one direction only and having a magnitude that does not vary or varies only slightly.

A transformer having fewer turns in the primary winding than in the secondary, servingto transform low voltage to high voltage.

An electric current that reserves direction at regularly recurring intervals, having a magnitude that varies in a sinusoidal manner.

In physical principles of light, it is the light rays leaving the source strike through, opaque surface which spreads the light in various directions, in addition light is broken up while in reflection, the light bounces back at a different direction.

Is the persistence of sound after the cause of sound has stopped - a result of repeated reflections.

The number of times the cycle of compression and rarefaction of air makes in a given unit of time.

Minimum height of a water seal for each fixture trap.

Minimum trap diameter for a bathtub.

The minimum face to face distance between elevators in three and four car grouping.

Maximum height of a dumbwaiter.

A filament or slender rod of drawn metal (AWG#8 or a smaller)

A unit of the rate of flow of electric current (an EMT of Volt across a Resistance of 1 OHM results in a current flow of 1 AMP) unit of measuring electric current.

A tube or pipe used to protect electric wiring; is a pipe containing the wires; a steel or non-metallic pipe into w/c cables are drawns; protect elec'l wiring; pipe commonly used as electrical raceway for holding wires.

High current flow caused by an abnormal connection in an elec'l circuit; will occur when faulty appliances or exposed wires touch a conductor. (contact of 2 live wires)

A device iss basically a double throw switch of generally 3 pole connection that will automatically transfer the power from the standby generator to the building circuitry during electrical power failure.

A device w/ serves to open or close the electric circuit.

The intrinsic property of matter giving rise to all electric phenomena, occurring in two forms arbitrarily given positive and negative algebraic signs and measured in coulombs.

A type of lighting that provides illumination to special objects like sculptures, flower arrangements etc.

The voltage difference between two points that represents the work involved in the transfer of a unit charge from one point to the other.

The opposition of the conductor to the flow of current, causing some of the electric energy to be transformed into heat and usually measured in ohms.

The positive terminal of a primary cell or storage battery.

The negative charge terminal of a primary cell or storage battery.

A device for converting chemical into energy, usually consisting of a receptacle with electrodes in an electrolyte.

A unit of electric measurement, equal to the produce of one volt and one ampere, equivalent to one watt for direct current systems and a unit of apparent power for alternating current systems.

A machine that converts mechanical energy into electrical energy.

The main current, carrying winding of a motor or generator in which electromotive force in induced.

The principle that the rate of production of heat by a direct current is directly proportional to the resistance of the circuit and to the square of the current.

A measure of the ability of a substance to conduct electric current, equal to the reciprocal of the resistivity of the substance.