Low voltage conductors - Study guides, Class notes & Summaries

Which tool is most approprite to clean battery connections? A. B. C. D. - ANSWER The minimum amp circuit breaker that should be used to protect 120V water heater circuit with a 1600-watt element would be rated at _________ amps. A. 15 B. 10 C. 20 D. 30 - ANSWER A. 15 When testing for excessive EMF emissions near a conductor or appliance, the tool of choice is a(an): A. Ohmmeter B. DVOM C. Gauss meter D. infrared sensor - ANSWER C. Gauss meter The primary problem with using a series circuit to su...

Service entrace conductors run from the service drop to the service box or service panel. True or False? - Answer True The service size is determined by the amperage and the voltage ratings of the service. - Answer True Is the service drop overhead or underground? - Answer Overhead Are service laterals overhead or underground? - Answer Underground The drip loop is typically part of the service drop. True or False? - Answer False The wire size for the service drop must be the ...

ABYC Electrical 2 Questions with correct Answers D ABYC standard ________ applies to inverters A. E-2 B. A-27 C. A-28 D. A - 31 A A true RMS voltmeter is required to accuralty check output voltage from a(n): A. non-sinusoidal output inverter B. Isolation transformer C. Inverter DC input D. Galvanic isolator C An AC voltmeter is required at the panel if the boat is equipped with: A. A DC windlass B. An AC- powered water heater C. An inverter D. AC- powered read...

Level 1 Module 12 Electrical Test Equipment Questions and Answers 2023 Which of the following devices measures ohms, amps, and volts? Multimeter Which of the following devices is also called an insulation resistance tester? Megger Which instrument should be used to verify that there is power available to run a three-phase motor that will not start? Voltage tester Which meter can measure current without having to make contact with uninsulated wires? Clamp-on anmeter What is the lowest ...

CWB Level 2 Module 5 Power Sources for Welding Exam Guide Question - Section 2 "Electric current is readily conducted in metals (low resistance) because of the many free electrons" True or false - ️️ True Guide Question - Section 2 "Conventional current flow is from negative to positive" True or False - ️️ False Guide Question - Section 2 Materials that have a high resistance to current flow are called: a) Semi conductors b) conductors c) insulators - ️️ c) insulators...

Current is the flow of electrons Voltage is a force that moves electrons Resistance is A. present in all conductors B. essentially infinite in insulators C. useful to control the flow of current D. all of the above Power is voltage times current In a circuit, if voltage is raised and resistance is held constant, current will Increase In a circuit, if resistance is raised and voltage is held constant, current will Decrease True or false: in the...

Two phase conductors of a 138kV transmission line come in contact due to a storm, creating a phase to phase fault. The distance relay at each end of the line tripped and isolated the line. What two measured parameters of the line caused the distance relay to operate? Temperature and length MWs and MVARs Voltage and current Resistance and Impedance CORRECT ANSWER Voltage and current What is the main cause for having low voltage on the Transmission and Distribution system? Over gener...

How do the standards describe the inspection of a home's electrical system? A. as an exhaustive technical inspection B. as an NEC code inspection C. as a local code inspection D. as a visual inspection - Answer-D. as a visual inspection Which of the following actions is NOT a requirement regarding branch circuit wiring? A. required to observe compatibility of branch circuit wiring and its fuses or breakers B. required to observe branch circuit conductors C. required to dismantle connect...

MCQ 770 Questions & Answer Electrical Engineering 2024 UpdateMCQ 770 Questions & Answer Electrical Engineering 2024 Update 1. The ratio of voltage and electric current in a closed circuit a. remains constant b. varies c. increases d. falls Ans-c 2. The curve representing ohm's law is a. sine function b. Linear c. a parabola d. a hyperbola Ans-b 3. The resistance of a conductor having length l area of cross section a and resistivity ρ is given as: a. ρa/l b. ρl/a c. ρla d. l/ρ...

MCQ 770 Questions & Answer Electrical Engineering 2024 UpdateMCQ 770 Questions & Answer Electrical Engineering 2024 Update 1. The ratio of voltage and electric current in a closed circuit a. remains constant b. varies c. increases d. falls Ans-c 2. The curve representing ohm's law is a. sine function b. Linear c. a parabola d. a hyperbola Ans-b 3. The resistance of a conductor having length l area of cross section a and resistivity ρ is given as: a. ρa/l b. ρl/a c. ρla d. l/ρ...