Ungrounded conductors - Study guides, Class notes & Summaries

_____ air "carries" more water vapor than cold air. - Warm _____ and every sleeping room should have at least one emergency exit. - Basements _____ describes a grouping of short studs commonly found over (or sometimes below) openings, such as for windows and doors, where a full-length stud could not fit. - cripples _____ is the incline of the roof expressed as a fraction derived by dividing the rise by the entire span, where the roof span is the distance between the outside of one wall's...

A grounding electrode system is generally required for each building or structure served by a feeder - Answer-true Where a building or structure is supplied by an ungrounded system, the feeder from the ungrounded system must include an equipment grounding condcutor or supply-side bonding jumper with the conductors to the building disconnecting means, and it must be connected to the disconnecting means enclosure as well as the grounding electrode conductor - Answer-true NEC ____ provides th...

Given: Two separate Services are identical in voltage and amperage, except that one service serves only motor - loads and the other serves lighting loads only. in the event of a short circuit in these services, the available short circuit current will be: A) The same in either service B) Higher in the motor-load service C) Higher in the lighting -load service D) 25% greater in the service for the motor load - ANSWERThe same in either service (general knowledge) A device ...

1. Which of the following do three 150 volt parallel circuits produce the total current ? a . 50 volts b . 150 volts c . 225 volts d . 450 volts - ANSWERd 3. If a custodian in your building finds out that an office worker is using a hot plate on a circuit that already has a lot of appliances plugged into , the safest thing to do is to : a . remove the hot plate from the office when its owner is not present b demand that the office worker remove the hot plate immediately c . writ...

Master Electrician (First Set 1-85) with Complete SolutionsMaster Electrician (First Set 1-85) with Complete SolutionsMaster Electrician (First Set 1-85) with Complete SolutionsMaster Electrician (First Set 1-85) with Complete Solutions 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 insulati...

ATT Test 1 (NEW 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Graded A QUESTION Factors of electrical accidents Answer: 1. Unsafe equipment 2. Unsafe environment e work practices QUESTION Insulator Answer: Any material with high resistance to electrical current QUESTION Identify conductors and cables Answer: American wire gauge size, max voltage, temperature & manufacturers name or trademark QUESTION Grounding conductors...

The typical electrical service for homes in North America is a_____? - Answer 120240 Volt The 240 Volt circuit is used for? - Answer Appliances The return conductor (a.k.a. the neutral) is at ___ volts because it is grounded to the electric panel - Answer Zero Most 120 Volt circuits are wired to deliver ___ or ___ Amps of current - Answer 15, 20 Most ___ Buildings are supplied with 120240 Volt services. This means that the cable assembly is made up of ___ ungrounded conductors each sup...

PSI Journeyman Online Practice Test Questions and Answers A fitting is a part of a wiring system that is intended primarily to perform which type of function? -Answer-mechanical When the disconnecting means of a transformer is located remotely it must be? - Answer-lockable If installed and routed on the outside of a raceway, the length of the equipment bonding jumper shall not exceed how many feet? -Answer-6 feet What is an askarel? -Answer-a group of nonflammable synthetic chlorinated ...

Branch circuit, multiwire definition - ACCURATE ANSWERA branch circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has equal voltage between it and each ungrounded conductor of the circuit and that is connected to the neutral or grounded conductor of the system Multiwire branch circuits disconnecting means. - ACCURATE ANSWEREach multi wire branch circuit shall be provided with a means that will simultaneously disconnect al...

Residential Electrician Exam #1 || Questions and Answers 100% Correct Residential Electrician Exam #1 || Questions and Answers 100% Correct Ferrous metal enclosures for grounding electrode conductors shall be _____. a) electrically continuous b) electrically isolated c) not permitted d) rigid metal conduit (RMC) only - ANSWER-A: electrically continuous Ref: 250.64(E) Unless listed for the control of other loads, general use dimmer switches shall only be used to control _____. a) swi...