Wiring
most common type of conduit used
What is EMT
NEC 422.13 requires that the branch circuit for a storage type electric water heater with a capacity of 120 gallons or less to be a ________ load.
What is Continuous
The allowable ampacity of a 4 AWG THHN conductor is 95 amperes. If we have four 4 AWG conductors, what is the adjusted ampacity?
What is 76
In commercial-type building the common 3-phase system with the highest voltage with the highest voltage is the ________.
What is 480 Y
The construction plans for a building are often called _________
Kinds of boxes used in Commercial electirical
What is Metallic Boxes
In the areas where ________ is enforced, the NEC is the law.
What is OSHA
What is the adjustment factor for 22 current carrying conductors?
The ____________ lists all of the electrical symbols that are used in this set of drawings
What is Electrical Symbol Legend
A switch symbol without a number beneath the horizontal line means that a ______ switch should be installed
What is single-pole
Trade size 3 metric designator
What is 78
NEC 430.24 requires that the conductors supplying several motors on one circuit shall have an ampacity of not less than ________ percent of the largest motor plus the full-load current rating of all other motors on that circuit?
What is 125
For a five conductor setup in a single raceway, the ampacity of a siza 10 AWG type THHN conductor will be ________ amperes
What is 32
In the commercial blueprints, what is the astronomical clock used for
What is Entrance Luminaires
Qualified Person
What is one who has demonstrated skills and knowledge related to the construction and operation of electrical equipment and installations and has received safety training to identify and avoid the hazards involved.
The maximum amount of conductors allowed in a raceway without having to account for ampacity adjustment
What is 3 conductors
When using cable for the wiring of three way switches, NEC 200.7 C (2) permits the use of a conductor with insulation that is white or _____ or has three continuous white stripes as a switch supply only if the conductor is permanently re-identified?
What is grey
What are the 3 different temperature ratings used for ampacity corrections?
What is 60 C (140 F), 75 C (167 F), 90 C (194 F)
The boiler heating circuit has 2 main lugs connected to two _________ per phase conductor
what is 500 kcmil
What steps should be taken while tabulating materials to ensure the best possible outcome
What is determine the lengths of conductors needed, figure out panel board locations, make special notes for longer runs, be organized and meticulous
How are insulated grounding receptacles wired
Insulated grounding conductors have a separate grounding conductor ran straight to ground without being tied with any other grounding conductor
A sign outlet is assigned a minimum allowance of ______ volt-amperes for each branch circuit required?
What is 1200
What is the ampacity for five 3 AWG THWN wires that have a continuous load
What is 64 A
What is machine-room-less, (page 254 commercial book)
Thermoset insulation description
What is conductor that is moisture resistant, flame retardant, nonmetallic covering usable in Dry and damp locations. Type letter RHH and a maximum of 90 C or 194 F