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Ammeter
An instrument for measuring the rate of flow of electricity, usually expressed in amperes
Amperage
. The current carrying capacity of a wire or cable, expressed in amperes
Blackout Switch
On a theatre stage, a master switch that distinguishes all stage lights simultaneously.
Feeder Line
"The portion of an electric wiring that extends beyond the final over current device protecting the circuit
Cable Vault
"An underground structure used in pulling or splicing electric cables which are laid underground.
Candlepower
The luminous intensity of a light source, expressed in candelas.
Current
Flow of electricity in a circuit; the unit of measurement is the ampere.
Direct Current
In an electric circuit, a current that flows in one direction only
Grounding Wire
"In electric wiring a metal plate, water pipe, or other type of conductor buried in the earth in manner ensuring a good conductive path to the ground.
Footcandle
A unit of illumination equal to 1 lumen per square foot.
Electric current
A movement or flow of electrically charged particles, typically measured in amperes.
appliances
What is a utilization equipment which is generally industrial built in?
alternator
a generator of alternating current
ammeter
device used to measure rate of flow of electricity
capacitor
device for storing electric energy
diffuser
What is a surface, material, device, or object that scatters light or sound from a source?
rectifier
device used to transform AC to DC
illumeter
device that indicates light intensity in Footcandle
greenfield
What is a flexible armored conduit used to encase electrical wiring?
regulator
controls the flow of current to the distribution elements
entrance cap
cap that receives the service drop
utility box
box used for maintaining light control devices
flux
What is an electromagnetic force flowing between the positive and negative terminals?
voltage
electromotive force
phase
number of AC that flow in a conductor
watt
rate or measure of power used or consumed
rheostat
What is an electric device having a resistance which can be adjusted?
regulator
controls the flow of current to the distribution elements
ohmmeter
instrument used to measure the resistance of a conductor
insulator
materials that resist the flow of electric current
coulomb
What is the unit for quantity of electricity?
ohm
unit of resistance
volts
unit of electromotive force
candela
unit of candlepower
10 ft.
Standard length of an electrical metal conduit.
Pvt. Automatic Branch Exchange
PABX or PBX means.
Capacitor
Farad is the unit capacity of a ___.
Power Panel
Another name for distribution panel.
No. 12
Standard size of wire for a circuit line.
No. 14
Standard size of wire for a switch line.
Rectifier
"A device for converting alternating current to direct current."
D.C. Generator
Another name for a Rectifier.
Phase
"Interrelationship between value of voltage and current with the same frequency."
5.5 sqmm
"Minimum wire size in square millimeter for a branch circuit with a 30 ampere rating using Type THW stranded copper conductor in a raceway."
60 Cycles
"Standard frequency of power supplied by the local power utility company like Meralco."
Service Drop
"The overhead service conductors from the last pole or other aerial support to and including splices, if any, connecting to the service entrance conductors at the building."
Telecommunication System
The simplest type of building automation system.
Impedance
Resistance in alternating current system.
Resistance
The reciprocal of conductance.
Busway
"A rigid metal housing for a group of heavy conductors insulated from each other and the enclosure, also called Busduct."
Bus
"A heavy conductor, usually in the form of a solid copper bar, used for collecting, carrying, and distributing large electric currents, also called a busbar."
Busway
"An approved assembly of insulated conductors with fitting and conductor terminations in completely enclosed ventilated protective metal housing where the assembly is designed to carry fault current and to withstand the magnetic forces of such current."
Pull Box
"A box with a blank cover which serves the purpose of joining one different runs of raceways or cables and provided with sufficient space for connection and branching of the enclosed conductors."
Riser Diagram
"This shows the vertical relationships of all panels, feeders, switches, switchboards, and major components are shown up to, but not including, branch circuiting, it is an electrical version of a vertical section taken through the building."
Air Terminal
"In a lightning protection system, the combination of a metal rod and its brace or footing, on the upper part of a structure."
Moisture resistant, in wet and dry location
TW in electrical wire specification means.
Moisture and Heat Resistant- Cross-Linked Thermosetting"
XHHN in wire specification means.
the reciprocal of ohm
Mho as used in electrical systems calculation is defined as _______.
Watt
"A unit of mechanical power is horsepower. What is electrical power?"
Nikola Tesla
"Who said these prophetic words: “Let the future tell the truth and evaluate each one according to his work and accomplishment. The present is theirs, the future for which I really worked for is mine.”?"
Rigid metal conduit (RMC)
"A type of raceway specially constructed for the purpose of pulling in or the withdrawing of wires or cables after the conduit is in place."
Heat resistant thermoplastic
"The trade name for an insulated conductor with type letter THHN is ______."
All of these
"What is / are the advantage/s of a circuit breaker over a fuse?
a. It can act as a switch
b. Its position can be easily detected (close/open)
c. It can be used again after fault has been corrected
d. All of these"
2-s3w and 1-s4w
"What switch combination may be used in order to control a lamp or group of lamps in three different locations?"
Low resistance, high current
It characterizes short circuit
Cable tray
"A unit or assembly units or sections and associated fittings forming a rigid structural system used to support cables."
Silver
"Fusible material in a fuse may be made of any of the following except___."
All of the above
"It affects the resistance of a conductor.
a. Length
b. Area
c. Temperature"
Panelboard
It is also known as electric panel or load center.
Conduit
"A cylindrical conduit or conductor, the wall thickness is sufficient to receive a standard pipe."
metal clad cable (type MC)
"A factory assembly of one or more conductors, each individually insulated and enclosed in a metallic sheath of interlocking metal tape, or a smooth corrugated metallic tube."
Current
It is analogous to pressure in water flow.
All of these
"Alternating current is characterized as having _____.
a. Positive and negative polarity
b. Average value is zero c. Has frequency
d. All of these"
Series circuit
"A circuit type where components are electrically connected end to end."
Switch
The basic elements of an electric circuit are the following except
Non metallic sheathed cable (type NM and NMC)
"A factory assembly of two or more insulated conductors having an outer sheath of moisture-resistant, flame retardant, non metallic material."
Both a and b
"Cables are conductors that are ____.
a. Larger than wires
b. Stranded (no.6 AWG and larger)"
Gold
"Which of the following metallic materials is considered as the best conductor of electricity?"
Both a and b
"Example/s of conductors-on-insulator wiring is are ______.
a. Concealed knob and tube
b. Open wiring on insulators"
Multi-outlet assembly
"A type of surface flush raceway designed to receive conductors and receptacles assembled in the field or in the factory."
Transfer switch
"A type of switch used for transferring one or more load conductor connections from one power source to another."
CIRCUIT BREAKER
The part of the cut out that is design to open or break an electrical current under an excessive load
WATTS
Unit of power
AMPERE
The unit used in the measure of the rate of flow of electricity