Electrical wire Study guides, Class notes & Summaries

Which of the following is true with regard to switchboards Switchboards are used to subdivide large blocks of power When installing wiring within switchgear, use self adhesive cable ties every ___. 12" (300mm) The maximum voltage that a piece of equipment can withstand is known as its ____. Basic impulse insulation level (BIL) Bolted pressure switches are often used in place of ___. Circuit breakers A transformer's temperature rise rating refers to ___. The max...

Nocti Electrical Study Guide Latest 2023 Graded A+ A continuous path along a conductor through which electrical current can flow from an energy source through a load and back to the source is called a ____________ electrical circuit What is a scan tool? used to identify trouble codes stored in the car's computer memory A material that allows electrons to flow through it easily or a pathway for electricity is known as a______________ conductor Three things that can be measured in an electric...

The minimum size equipment grounding conductor for a 100 ampere, 120/240 volt single phase underground dwelling feeder whose ungrounded conductors have been increased in size from 3 AWG copper to 1 AWG copper is __ AWG copper Ampacities, Grounding 250.122(B) Table 250.122 Table 8 Ch 9 - ANSWER-4 The continuity of the grounded conductor shall depend on a busbar or __ only. Continuity, Grounded conductors 200.12 - ANSWER-wire. Each multi-wire branch circuit shall be provided with...

Real asvab test!!! Updated Spring 2023. "Complexity" most nearly means 4 weights are tied together and hung from the ceiling. what will be the tension in the cord at the point labeled X? 4x+12=0 a belt passes over a drum and its ends are connected to springs. if the drum rotates in the direction shown and there is friction between the drum and the belt, then a box sits on a smooth table. 3 strings are attached to the box, each having a weight of 10 Ibs. attached to the othe...

Combustible Liquid - Correct answer-A liquid with a flash point ABOVE 100F 12.5 - Correct answer-If the current flowing out from an electrical panel is 12.5 amps, and it then flows through an electrical load of 1500 watts, what is the amperage of the remaining current flow of the return circuit? 1000 - Correct answer-If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the wattage? *Power (P) = current (I) x voltage (V) Watts = amps x volts 1987 - Correct answer-The y...

Which article of the NEC covers grounding? CORRECT ANSWER Article 250 What is a dropout plate? CORRECT ANSWER Metal plate with a curve surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States Except: CORRECT ANSWER 372/575 3-Phase, 4-wire What does a GFCI breaker do? CORRECT ANSWER Opens a circuit to prevent operation of an electrical device What will happen when one or more coils in a winding are grounded? CORRECT A...

The minimum size equipment grounding conductor for a 100 ampere, 120/240 volt single phase underground dwelling feeder whose ungrounded conductors have been increased in size from 3 AWG copper to 1 AWG copper is __ AWG copper Ampacities, Grounding 250.122(B) Table 250.122 Table 8 Ch 9 - ANSWERS4 The continuity of the grounded conductor shall depend on a busbar or __ only. Continuity, Grounded conductors 200.12 - ANSWERSwire. Each multi-wire branch circuit shall be provided with...

What is the minimum working clearance from an electrical panel under 600 V? - 36" Voltage drop in wire is a function of: - Wire gauge, Length of wire, Current flow in the wire A 12-volt direct current, 13-watt fluorescent light is controlled by a photocell. The average daily on-time is 12 hours per day. How many watt-hours are consumed by the light on an average day? - 156 Where may you use nonmetallic-sheathed cable? - inside floors and walls What is the maximum permitted distance betwe...

Created to serve as a complete, comprehensive code regulating the construction of single-family, two-family and buildings consisting of three or more townhouse units. - Answer IRC (International Residential Code) Administrative - Answer First 2 chapters of code book are True - Answer Plans or supporting documents are almost always required by the controlling authority prior to issuing a permit. T or F Yes - Answer Does the building official have the authority to render interpretations o...

What is the first thing a tech should do when arriving at a no combustion call? - Answer- Ask how many times the customer reset the unit. What is the best long term solution for preventing a clogged nozzle? - Answer- -Remove any underground storage tanks. -Install a quality oil filter. -Cut the suction line 10" above the tank outlet to prevent sludge. Hot water and steam valves are interchangeable. - Answer- False When in the presence of a flame, a cad cell normally reads.. - Answe...