Conductors ampacity - Study guides, Class notes & Summaries
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ELECTRICAL LEVEL 3 MODULE 1 LOAD CALCULATIONS AND BRANCH FEEDER CIRCUITS
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According to the NEC®, the ampacity of branch circuit conductors must be derated when there are more than how many current-carrying conductors in a raceway? - correct answer 3 
 
Air conditioning overcurrent protective devices can never exceed what percentage of the motor-rated load current or the branch circuit selection current (whichever is greater)? - correct answer 225% 
 
Conductors must be derated when installed in conduit - correct answer on or above rooftops 
 
Continuous loads are cal...
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IEC YEAR 1 FINAL EXAM STUDY WITH 100% CORRECT ANSWERS 2024 LATEST UPDATE.
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What is the result if the neutral wire becomes open on a multiwire circuit having unequal loads? 
 
Select one: 
 
a. 
The load of higher resistance would overheat and probably be damaged. 
 
b. 
The load of lesser resistance would overheat and probably be damaged. 
 
c. 
No effect until one load is turned off or opens. 
 
d. 
No effect. 
The load of higher resistance would overheat and probably be damaged. 
 
 
 
Refer to Figure 128.202. ___ volts are applied across the water heater element. 
S...
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NEC Exam prep questions and answers, graded A+ / APPROVED EXAM PREDICTION PAPER/
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NEC Exam prep questions and answers, 
graded A+ 
There are six conductors in a raceway connected to 75 degree Celsius rated breakers. Each wire has a 70 
amp load using THHN conductors. The minimum size conductors used are #_________AWG. 
A. 4 
B. 6 
C. 8 
D. 10 
A. #4 
60 degree column (110.14(C)) adjust from 90 degree column 
95 x .8 = 76a 
Thermal insulation shall not be installed within __________ inches of recessed fixtures. 
A. 1/2 
B. 3/4 
C. 2 
D. 3 
D. 3 
410.116(B) 
Brainpower 
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Electrical Level 3 Module 1 Load Calculations and Branch Feeder Circuits Quiz
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Electrical Level 3 Module 1 Load Calculations and Branch Feeder Circuits Quiz_ 2022. 
According to the NEC®, the ampacity of branch circuit conductors must be derated when there are more than how many current-carrying conductors in a raceway? 
 
Air conditioning overcurrent protective devices can never exceed what percentage of the motor-rated load current or the branch circuit selection current (whichever is greater)? 
 
Conductors must be derated when installed in conduit 
 
Continuous load...
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Journeyman Electrician Exam Questions and Answers 2023 Graded A+
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Journeyman Electrician Exam Questions and Answers 2023 Graded A+ 
 
For other than one-and two-family dwellings, when building a new electrical service, at least one (1) 125-volt, single-phase, 15- or 20-ampere-rated receptacle outlet shall be located within at LEAST _____ of the electrical service equipment? -ANS>> 50 feet 
 
The ampacity of a conductor is defined by the NEC to be the maximum current, in amperes, a conductor can carry continuously under the conditions of use without exce...
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Load calculation Feeders and services Level 4 Module 1 Questions with 100% Correct Answers | Latest Version 2024 | Verified
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Load calculation Feeders and services Level 
4 Module 1 Questions with 100% Correct 
Answers | Latest Version 2024 | Verified 
What is the demand factor allowed by the NEC® for calculating the neutral conductor size for electric 
range load? - 70% 
 
Using the VA/linear foot method, the total VA that must be used in a service calculation for a 50' show 
window is - 12,500VA 
 
Before it is considered a continuous load, a load must operate for at least how many hours without 
interruption? - 3 ...
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ABYC Marine Electrical Certification Exam Review Correct 100%
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circuit breaker mean? 
a. The breaker is inexpensive 
b. The breaker will have lots of nuisance trips 
c. The breaker will trip out regardless of conditions 
d. The breaker will only trip at 150% of its rated amperage 
 
b. 8 amps (E-11 Table XII Conductor Ampacity - Flexible Cords) - ANSWER maximum current carrying capacity for an flexible cord of 16 AWG with 2 current carrying conductors inside the engine spaces is 
a. 6 amps 
b. 8 amps 
c. 10 amps 
d. 20 amps 
 
c. only in one direction - ANS...
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Journeyman Electrician Practice Test Latest Update Graded A+
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Journeyman Electrician Practice Test Latest Update Graded A+ 
Conductors with _____ marked on the insulation are NOT approved for use in a wet location. THHN 
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 local utility ...
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IRC 2023 Electrical Inspector Examination Study Material |Complete With A+ Graded Answers
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IRC 2023 Electrical Inspector Examination Study Material |Complete With A+ Graded Answers 
Cords that supply swimming pool equipment shall have a copper equipment grounding conductor not smaller than No. ______________ AWG. 
12 AWG. 
 
2015 IRC Section E4202.2 Flexible cords, Item 1 
 
 
Receptacles shall be installed so that no point along the floor line in any wall space is more than _________ feet, measured horizontally, from an outlet in that space. 
6 Feet. 
 
This is the rule 6/12 rule: 6 ...
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Journeyman Electrician Practice Test | Questions with 100% Correct Answers | Latest Update 2024 | Verified
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Journeyman Electrician Practice Test | Questions with 100% Correct Answers | Latest Update 2024 | Verified 
Conductors with _____ marked on the insulation are NOT approved for use in a wet location. - 
THHN 
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, sin...
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