Power-horse Library

practice State Exam, Final Review, Pre-Test, FINAL EXAM, Chapter 1-5, chapter 1 & 2, 4th Edition, Ch. 1-2, The Basics, Study Guide, Cha 1, Ch 5, Ch8, 9, & 10, Ch 7, Ch 1, Ch 9, Test Prep, ch 23, Ch. 3, ch 14, Ch31, Ch 19, Ch 6, Ch5, 6, & 7, Foundations of Resident's Care, the Basics Abbreviations, chapter 15,

Unless listed and identified otherwise, terminations and conductors of sizes 14 AWG through 1 AWG shall be rated at _____. a) 75°C b) 75°F c) 90°C d) 60°C - Answer D: 60°C Ref: 110.14(C)(1)(a)(1) The MINIMUM size copper equipment bonding jumper on the supply side of a service consisting of parallel copper phase conductors with a total circular mil area of 2000 kcmil shall be ____. a) 2/0 AWG b) 3/0 AWG c) 4/0 AWG d) 250 kcmil - Answer D: 250 kcmil Ref: 250.102(C) Sol: 2,00...

There are six conductors in a raceway connected to 75° rated breakers. Each wire has a 70-amp load using THHN conductors. The minimum size conductor used are #__________ AWG. a. 4 b. 6 c. 8 d. 10 - Answer a Thermal insulation shall not be installed within __________ inch(es) of recessed fixtures. a. 1⁄2 b. 3⁄4 c. 2 d. 3 - Answer d A 1-inch conduit contains three 3-wire circuits. All conductors are #10 TW. Each circuit consist of two phase conductors, one grounded conductor, ...

Locknuts are sometimes used in making electrical connections on studs. In there cases the purpose of the locknuts is to ____. - Answer Prevent the connection from lossening under vibrations. Enclosed means, surrounded by a ____ which will prevent persons from accidently contacting energized parts. - Answer Wall, fence, and housing or case. In series circuit ____ is common. - Answer Current. Batteries supply ____ current. - Answer Direct. An alternation is ____. - Answer One-half cycl...

_______ can be generated. I. Electricity II. Electrical Energy a. I only b. II only c. both I and II d. neither I nor II - Answer Ans. b A phenomenon where a circuit stores electrical energy is called ______. a. Inductance b. Capacitance c. Resistance d. Susceptance - Answer Ans. b A general term including material, fittings, devices, appliances, fixtures, apparatus, and the like used as part of, or in connection with, an electrical installation is ______. a. premises wiring (s...

NEC Article ______ defines breakers and fuses. - Answer According to NEC Article 100, a device that opens and closes a circuit by nonautomatic means automatically closes for a predetermined overcurrent. Annex _____ of NEC covers conduit fill. - Answer Annex C of NEC covers conduit and tubing fill for conductors and fixture wire fill. NEMA stands for National Electrical Manufacturers Association - Answer True - NEMA is the acronym for National Electrical Manufacturers Association. What d...

An advantage of an electromagnent over a permanent magnent is that ____. - Answer An electromagnent can be switched on and off. An excellent diffuser surface is one that ____. - Answer Scatters light uniformly in all directions. Light is converted into electricity ____. - Answer In a photovoltaic cell. The rotating part of a DC motor is known as ____. - Answer Armature. A device used to pull wires through a conduit is called ____. - Answer Fish tape. In making a resistance test, r...

Where a water pipe passes over an indoor motor control center, leak protection apparatus shall have a MINIMUM clearance of _____. a) 6 feet to the protection apparatus b) 6 feet to the water pipe c) 6 1⁄2 feet to the protection apparatus d) 6 1⁄2 feet to the water pipe - Answer A: 6 feet to the protection apparatus Ref: 110.26(F)(1)(a) Branch circuit grounded conductors that are not connected to an overcurrent device shall be permitted to be sized at LEAST _____ of the continuous a...

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 hydrocarbons used as electrical insulating media In ...

Conductors with _____ marked on the insulation are NOT approved for use in a wet location. a. THW b. THHW c. THHN d. THWN - Answer THHN As shown in Table 310.104(A), conductors with THHN insulation are approved for use in dry and damp locations only and conductors with THWN, THHW, and THW insulation are recognized for use in dry and wet locations. Given: A one-family dwelling unit with a demand load of 200 amperes is supplied with a 120/240 volt, single-phase, electrical system from the ...