Untitled Deck Flashcards
(38 cards)
What is the unit of electrical resistance?
Ohms.
What is the unit of current?
Amps.
What is the unit of electrical pressure?
Volts.
What does GFCI stand for?
Ground-Fault Circuit Interrupter.
Where are GFCI outlets required?
Kitchen, bathroom, outdoors, laundry, garage, and within 6 feet of water.
What type of electrical system is used in single-family homes?
Single Ø (120/240V, Black/Red & Black wires).
What type of electrical system is used in multi-family homes?
3 Ø (120/208V, Black/Red/Blue wires).
What type of electrical system is used in commercial buildings?
3 Ø High Voltage (277/480V, Brown/Orange/Yellow wires).
What does PVC stand for?
Polyvinyl Chloride.
What are the two types of PVC conduit?
SCH 40 and SCH 80.
What type of current do batteries and solar panels produce?
Direct Current (DC).
What type of current is used in homes?
Alternating Current (AC).
What is the maximum number of degrees for bends in conduit?
Less than 360°.
What is a series circuit?
A circuit with only one path for current.
What is a parallel circuit?
A circuit with multiple current paths.
What is the purpose of a neutral wire?
Grounded for safety.
What is the purpose of a ground wire?
Grounding for safety.
What are the main elements inspected in electrical work?
Workmanship, made-up boxes, securing & supporting, ¼ nail plates, maintaining fire ratings, and completeness.
What does AFCI stand for?
Arc-Fault Circuit Interrupter.
What is the purpose of a photocell?
It is a light-sensing switch.
What is the maximum distance between switch receptacles in dwellings?
12 feet.
How close must plugs be to a door or break in the wall?
Within 6 feet.
What are the safety guidelines for extension ladder placement?
At least 3 feet from the top.
What does NEC stand for?
National Electrical Code.
