Busbar Study guides, Class notes & Summaries

AHIT Electrical, Unit 5 Questions and Answers 2024 adapter A device with a 3-slot receptacle for an appliance plug and a 2-prong plug for inserting into a 2-slot outlet. AL A rating indicating that breakers are approved for use with aluminum branch circuit wiring. alternating current an electrical current, used in homes, in which electrons move back and forth at a frequency of 60 cycles per second. ampacity The number of amps that can safely pass through a given conduct...

Which article of the NEC covers grounding? Article 250 What is a dropout plate? 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: 372/575 3- Phase, 4-wire What does a GFCI breaker do? Opens a circuit to prevent operation of an electrical device What will happen when one or more coils in a winding are grounded? The motor will automatically blow fuses eight incandescent lighting fix...

The Electrical Inspection: AHIT Questions and Answers 2024 How do the standards describe the inspection of a home's electrical system? A. as an exhaustive technical inspection B. as an NEC code inspection C. as a local code inspection D. as a visual inspection D. as a visual inspection Which of the following actions is NOT a requirement regarding branch circuit wiring? A. required to observe compatibility of branch circuit wiring and its fuses or breakers B. required to obser...

A 150 kVA service transformer has a 480Y/277 volt 3-phase primary and a 208Y/120 volt, 3-phase secondary. What is the approximate full-load ampere rating of the primary of the transformer? - Answer 180 amperes Where a conductor is marked RHW-2 on the insulation what does the "-2" represent? - Answer The conductor has a maximum operating temperate of 90 degrees C. For a grounded electrical system supplied by a feeder or branch circuit, the equipment grounding conductor shall be sized in a...

adapter - Answer A device with a 3-slot receptacle for an appliance plug and a 2-prong plug for inserting into a 2-slot outlet. AL - Answer A rating indicating that breakers are approved for use with aluminum branch circuit wiring. alternating current - Answer an electrical current, used in homes, in which electrons move back and forth at a frequency of 60 cycles per second. ampacity - Answer The number of amps that can safely pass through a given conductor. amperage (see current) - ...

NCCER Electrical Exam Q&A with Complete Solution Which Article of the NEC covers grounding? - article 250 Which of the following is a 90 degree, explosion proof fitting? - GUAL What is a dropout plate? - Metal plate with a curved surface for cable to follow as it passes from the tray All of the following are common service voltages in the United States EXCEPT: - 372/575 3-PHASE, 4-WIRE What does a GFCI breaker do? - Opens a circuit to prevent operation of an electrical device W...

Acid: - A substance which releases hydrogen ions when dissolved in water. Most acids will dissolve the common metals and will react with a base to form a neutral salt and water. An acid is the opposite of an alkali, has a pH rating lower than 7.0, will turn litmus paper red, and has a sour taste. Acidity: - The quantitative capacity of water or a water solution to neutralize an alkali or base. It is usually measured by titration with a standard solution of sodium hydroxide, and ...

AHIT Electrical, Unit 5 Exam Questions and Answers adapter -Correct Answer-A device with a 3-slot receptacle for an appliance plug and a 2-prong plug for inserting into a 2-slot outlet. AL -Correct Answer-A rating indicating that breakers are approved for use with aluminum branch circuit wiring. alternating current -Correct Answer-an electrical current, used in homes, in which electrons move back and forth at a frequency of 60 cycles per second. ampacity -Correct Answer-The number of amps...

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 - Answers 4 The continuity of the grounded conductor shall depend on a busbar or __ only. Continuity, Grounded conductors 200.12 - Answers wire. Each multi-wire branch circuit shall be provided wi...

Electrician NCCER Questions and Answers Already Passed Which article of the NEC covers grounding? - Answer ️️ -Article 250 What is a dropout plate? - 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: - Answer ️️ - 372/575 3-Phase, 4-wire What does a GFCI breaker do? - Answer ️️ -Opens a circuit to prevent operation of an electrical device What will happe...