17. Where flexible cords are permitted by the code to be permanently connected, it is permissible to omit for such cords. (a.) switches (b.) receptacles (c.) grounding connections (d.) GFCI protection 18. Listed or labeled equipment shall be installed, used, or both, in accordance with (a.) the fob specified (b.) the plans (c.) the instructions given by the authority having jurisdiction (d.) the instructions included in the listing or labeling 2 19.A grounding electrode connection that is encased in concrete or directly buried shall (a.) be made accessible (b.) be made only by exothermic welding (c.) be a minimum #4 bare (d.) not be required to be accessible 20. Wet niche or no niche lighting fixtures that are supplied by a flexible cord or cable shall all exposed noncurrent carrying metal parts grounded by an insulated copper equipment grounding conductor not smaller than the supply conductors and not smaller than (a.) #16 (c.) # 14 (b.) # 18 (d.) #12| 21. A two pole circuit breaker that may be used for protecting a 3 phase corner grounded delta circuit shall be marked (a.) 1 phase 120/240v (b.) 1 phase – 3 phase (c.) 1 phase/2phase/3phase (d.) 480Y/277v

17. Where flexible cords are permitted by the code to be permanently connected, it is permissible to omit for such cords. (a.) switches (b.) receptacles (c.) grounding connections (d.) GFCI protection 18. Listed or labeled equipment shall be installed, used, or both, in accordance with (a.) the fob specified (b.) the plans (c.) the instructions given by the authority having jurisdiction (d.) the instructions included in the listing or labeling 2 19.A grounding electrode connection that is encased in concrete or directly buried shall (a.) be made accessible (b.) be made only by exothermic welding (c.) be a minimum #4 bare (d.) not be required to be accessible 20. Wet niche or no niche lighting fixtures that are supplied by a flexible cord or cable shall all exposed noncurrent carrying metal parts grounded by an insulated copper equipment grounding conductor not smaller than the supply conductors and not smaller than (a.) #16 (c.) # 14 (b.) # 18 (d.) #12| 21. A two pole circuit breaker that may be used for protecting a 3 phase corner grounded delta circuit shall be marked (a.) 1 phase 120/240v (b.) 1 phase – 3 phase (c.) 1 phase/2phase/3phase (d.) 480Y/277v

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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3. The term "listed" means that ____. Select one: A. EQUIPMENT OR MATERIAL MUST CONTINUE TO COMPLY WITH THE APPROPRIATE STANDARDS (OR PERFORMANCE) UNDER WHICH THE LABELING WAS GRANTED B. EQUIPMENT OR MATERIAL IS LISTED FOR SALE BY GENERAL OR SUBCONTRACTORS C. EQUIPMENT, MATERIALS, OR SERVICES MEET APPROPRIATE DESIGNATED STANDARDS OR HAVE BEEN TESTED AND FOUND SUITABLE FOR A SPECIFIED PURPOSE D. EQUIPMENT OR MATERIAL COMPLIES WITH DISCRETIONARY STANDARDS AS LISTED IN THE NEC®
If the NEC provides a requirement to grounding equipment, it generally implies that there will be a direct connection to Earth of connection through a/an A. Equipment grounding conductor B. Bonding conductor C. Grounding electrode conductor D. Equipotential bonding conductor
7.C. Which of the following statements about bonding is true?A. The joint or termination must offer opposition in the circuit for effective electrical connections.B. Effective bonding keeps impedance high if a fault should occur.C. The entire electrical safety circuit is only as good as its strongest bonded link.D. Bonding connections must endure high levels of fault current until overcurrent protective devices can operate. 7.b. Which of the following is required with a low-voltage incandescent lamp that's operating on a standardservice?A. PhosphorsB. Argon gasC. A step-down transformerD. A ballast 7.a. The ordering code for a large incandescent lamp provides information on theA. lamp power requirement, bulb type and size, and sometimes lamp color.B. lamp power requirement, bulb size and special features, and sometimes filament type.C. lamp voltage, bulb type and size, and sometimes lamp color.D. lamp voltage, bulb size and special features, and sometimes filament type.
1. A14/2 type copper used for a general lighting branch circuit. Ampacity:______________ Maximum Fuse or Circuit Breakers Sizes:________________ 2.Three 8 AWG copper conductors with THHN insulation Installed in garage in electrical metallic tubing (EMT). The ambient temperature in the garage can reach as high as 110'F. All termination points for this circuit are rated 60'C. Ampacity:______________ Maximum Fuse or Circuit Breakers Sizes:________________ 3.Four 4 AWG copper conductor with THWN insulation imstalled in EMT in a basement. All termination points are rated at 60'C. Ampacity:______________ Maximum Fuse or Circuit Breakers Sizes:________________ 4. An 8/3 Type UF copper cable installed underground from a house to a detached garage to feed a 120/240-volt subpanel. All termination points are rated at 60'C.…
The term "____" is defined in NEC® Article 100 as "connected to establish electrical continuity and conductivity." Select one: A. BENDED (BENDING) B. BONDED (BONDING) C. SHUNTED (SHUNTING) D. GROUNDED (GROUNDING)
How is the grounded dc conductor of a photovoltaic system required to be identified? a. shall be identified at the time of installation by distintive red markings on some of the terminations b. shall be identified at the time of installation by distintive blue marking at all terminations c. shall be identified at the time of installation by a distintive grouping of wires AWG #2 d. shall be identified at the time of installation by distinctive white marking at all terminations.
l11 answer 1 2 3
6.a. The amount of short-circuit current that flows depends upon the amperes available at the source ofpower, the length of the circuit, and what other primary factor?A. The presence of a ground fault currentB. Proper installation of the branch circuitC. Presence of no previous damage to the electrical systemD. The size of the conductors and voltage at which they operate6.b. You're evaluating the components of a multioccupancy building that won't have an on-site employee. Tobe compliant with the NEC, each occupant will need to have access to their ownA. service-disconnecting means.B. service conductor.C. cable attachment point.D. emergency fire water-pump disconnect.