Ungrounded conductors Study guides, Class notes & Summaries

Michigan Journeyman test | 2023/24 questions and answers There are six conductors in a race way connected to 75° C rated circuit breaker. Each wire has a 70 amp load using THHM conductors. The minimum size conductors used our #_________AWG - 4 Thermal insulation shall not be installed within _________inches of recessed lighting fixtures - 3 A 1 inch conduit contains three wire circuits or a phase system. All conductors are number 10 TW. Each circuit consist of two phase conductors and on...

There are six conductors in a race way connected to 75° C rated circuit breaker. Each wire has a 70 amp load using THHM conductors. The minimum size conductors used our #_________AWG correct answer: 4 Thermal insulation shall not be installed within _________inches of recessed lighting fixtures correct answer: 3 A 1 inch conduit contains three wire circuits or a phase system. All conductors are number 10 TW. Each circuit consist of two phase conductors and one grounding conductor and on...

Module 11 - Residential Electrical Services Questions and Answers 2023 with complete solution A small residence has a floor area of 900 square feet. What is its general lighting load? 2,700VA Per NEC Table 220.54, a household with two dryers has a demand factor of __________. 100% If a dwelling has two kitchen areas, then the total small appliance branch circuits required would be __________. four at 1,500VA each A lighting load of 2,700VA at 120V has an amperage of __________. 22.5A ...

A ? is defined as the circuit conductors between the final overcurrent device protecting the circuit and the outlet(s). - Answer-branch circuit A ? includes all circuit conductors between the service equipment, the source of a separately derived system, or other power supply source, and the final branch-circuit overcurrent device. - Answer-feeder A grounding electrode system is generally required for each building or structure served by a feeder. - Answer-True According to the NEC, that...

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 - The same in either service (general knowledge) A device that requires a portabl...

IEC 2A Questions and Answers with Verified Solutions ___ AWG ungrounded conductors are installed from BCES Transformer XE to Panel LE. Select one: a. 4 b. 3/0 c. 4/0 d. 8 e. 2 2 ___ is a type of lamp used in an HID luminaire.I. Mercury-vapor II. Metal halide III. Nickel cadmium Select one: a. I & III only b. I only c. II only d. I & II only e. I, II, & III f. II & III only I & II only ___ is defined as case or housing of apparatus, or the fence or walls surroundin...

The following questions are based on the 2020 edition of the National Electrical Code® and are typical of questions that may be encountered on most Master Electricians’ licensing exams. Select the best answer from the choices given and review your answers with the answer key. 1. What MINIMUM size ungrounded (phase) THWN copper service-entrance conductors are required for a 208Y/120-volt, 72,000 VA 3-phase commercial service? a. 250 kcmil b. 2/0 AWG c. 3/0 AWG d. 4/0 AWG 2. E...

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

Second Year IEC Final Exam Questions and Answers 100% Pass ______ in utility transmission lines reduces the power losses in the transmission conductors. increasing the voltage ______ shall not support luminairs weighing over 6 lb. lampholder _______ surrounds the windings in typical "pole-mounted" transformers. oil 40C = ____ F 104 A .25KVA transformer has a nameplate rating of 240/480 primary volts 120/240 secondary volts. IF rated voltage is applied to the primary the sec...

IEC Chapter final Exam 135 Questions with Verified Answers _____ lighting track is never permitted to be cut in the field. portable ______ allows a circuit or electrical system to be sized at less than its maximum connected load. diversity .0001 A= how many milliamps 100 0 C = how many degrees Fahrenheit 32 1.2 MV= how many volts 1,200,000 1" conduit costs $800 per 1000 foot bundle. The cost of one 10 foot stick is ____. 8 3 hours 20 minutes + 1 hour 48 minutes= 5 hours...