Ampacity Study guides, Class notes & Summaries

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...

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...

NEIEP 500 Final Exam Version 1 (Latest 2023/ 2024 Update) Questions and Verified Answers| 100% Correct| Grade A Q: How are wire sizes larger than 4/0 measured? Answer: In circular mils Q: What is the abbreviated term for current carry8ing capacity? Answer: Ampacity Q: What is the minimum size wired for lighting circuits in an elevator installation? Answer: #14 Q: What is the special about wire used for the interlock circuit? Answer: It must be rate...

NABCEP PV ASSOCIATE EXAM QUESTIONS & ANSWERS 2023/2024 An off-grid installation has a 1HP pump that is on 10% of the time and a 20W light that is on 100% of the time. What is the monthly energy use? - ANSWER-68KWh 1HP = 746W 746W * 0.1 * 24hours * 30days = 53712Wh 20W * 24hrs * 30days = 14400Wh 14400 + 53712 = 68112Wh 68kWh What kind of ground faults do most inverters detect? - ANSWER-DC Inverters detect dc ground faults. AC ground faults are detected on the AC side of the inverter a...

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...

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...

Absolute Temperature. CORRECT ANSWER A temperature measured in Kelvins (K) or Rankines (R). Accelerant. CORRECT ANSWER A fuel or oxidizer, often an ignitable liquid, intentionally used to initiate a fire or increase the rate of growth or spread of fire. Accident. CORRECT ANSWER An unplanned event that interrupts an activity and sometimes causes injury or damage or a chance occurrence arising from unknown causes; an unexpected happening due to carelessness, ignorance, and the like. Ambie...

NEIEP 500 Final Exam 2024.What is the name of the code that is the accepted standard for all electrical wiring in the United States? - ANSWER National Electrical Code What is the maximum distance between supports of a vertical raceway, based on NEC Article 620-32? - ANSWER 15 feet What type of flex would be used to pipe a switch in a wet location? - ANSWER Liquidtight Flex What is the name for the complete metal system of duct, conduit and flex that protects the wiring? - ANSWER Raceway...

NEIEP 500 Final Exam Version 1 (Latest 2024 / 2025 Update) Questions and Verified Answers | 100% Correct | Grade A Q: How are wire sizes larger than 4/0 measured? Answer: In circular mils Q: What is the abbreviated term for current carry8ing capacity? Answer: Ampacity Q: What is the minimum size wired for lighting circuits in an elevator installation? Answer: #14 Q: What is the special about wire used for the interlock circuit? Answer: It must be rated for 200 degrees C Q: What is the smallest w...

Electricity for HVAC Exam Questions and Answers All Correct What does NEC stand for? - Answer-National Electric Code What is Ampacity? - Answer-The current carrying capacity of wire or cable expressed in amperes or amps. What is EMF? - Answer-Electromotive Force (volts) What is Amperage? - Answer-The measurement of electrical flow in a conductor. You check volts in parallel or series? - Answer-parallel You check amps in parallel or series? - Answer-series What is Voltage? - An...