Ac electricity flows Study guides, Class notes & Summaries

MSSC Maintenance Awareness Questions and Answers 100% Verified Torches are designed to avoid mixing oxygen and acetylene by using __________. - Answer ️️ -Reverse-flow check valves at torch inlets or regulator outlets To prevent leakage around the valve during use, __________ - Answer ️️ -An oxygen cylinder valve should be opened all the way An explosion can occur if __________ comes in contact with oil. - Answer ️️ -High pressure oxygen A green welding hose normally indicate...

Ch4-The X-ray Circuit Questions With Accurate Answers 2023 Electrical current that changes direction in cycles as the electric potential of the source changes - ANSWER-Alternating current (AC) A device that uses an ionization chamber to detect the quantity of radiation exposing the patient and image receptor - ANSWER-Automatic Exposure Control (AEC) Material with an abundance of free electrons allowing free flow of electricity - ANSWER-Conductor An expression of the flow of electrons in a...

REC Electrical Module Latest 2023 Rated A+ Ohm's Law What is the unit for voltage? Volts What is the unit for current? Amps What is the unit for resistance? Ohms Electricity Energy resulting from charged particles (electrons or protons). How is electricity formed? Charge (statically) or current (dynamically). Static Electricity _________ ________ charge by friction. Causes sparks, crackling or attraction of dust or har. Current Electricity Electrical charge that flows form one place to ...

Metals treated by _____ processes become soft. Annealing Quenching Stamping Twisting Annealing A spot welding system consists of an electrical supply, moveable arm, and a _________. Encoder Filler rod Stationary arm Stationary roller Stationary arm Oxy-acetylene welding requires no _____ and is not sensitive to wind or drafts like Gas Metallic Arc Welding or Gas Tungsten Arc Welding. Gas Torch Electricity Filler rod Electricity Metals that contain iron, such a...

What is the most important law applicable to the study of electricity? - CORRECT ANSWER Ohms law What are the elements of Ohm's Law? - CORRECT ANSWER Voltage, Current & Resistance What are four sources of electrical power? - CORRECT ANSWER Thermal, light, pressure and chemical What does an electrical circuit consist of? - CORRECT ANSWER source, Load/resistance and conductors What represents capacitance in an AC circuit? - CORRECT ANSWER a capacitor What is the functi...

Hot or live wire - Ungrounded conductor Neutral wire - Grounded conductor Panel earth ground - Grounding electrode conductor Earth or ground wire - Equipment grounding conductor Grounding rod - Grounding Electrode Main disconnect - Service disconnect Main panel - Service or distribution electrical board with a service disconnect Sub-panel - distribution panel board without a service disconnect Panel cover - Deadfront Wires to outlets - Branch circuit conductors Outlet - Lighting ando...

The reverse polarity indicator is an LED with 2 legs. One of these legs have a resistor of Correct Answer 25k Ohms Anodes used in cathodic protection systems shall be Correct Answer painted with a protective barrier coating Oil pressure and temperature gauges are Correct Answer installed in series What type of element are in series Correct Answer the switches Voltage regulator ( inbetween output and breaker) Correct Answer controls alternator field voltage Isolator transformer Cor...

What is the most important law applicable to the study of electricity? - Answer- Ohms law What are the elements of Ohm's Law? - Answer- Voltage, Current & Resistance What are four sources of electrical power? - Answer- Thermal, light, pressure and chemical What does an electrical circuit consist of? - Answer- source, Load/resistance and conductors What represents capacitance in an AC circuit? - Answer- a capacitor What is the function of a capacitor? - Answer- to store electricit...

Dale Crane's Oral and Practical Exam Guide: General; Material and Processes Questions And Answers What constitutes a capacitor? - ANSWER- -Two conductors separated by an insulator -In its most basic form the capacitor is constructed of two parallel plates separated by a nonconductor, called a dielectric. (FAA-H-8083-30, Ch. 10) What is the purpose of a capacitor? - ANSWER- -It Stores electrical energy in a electrostatic field. -In an electrical circuit, a capacitor serves as a reser...

Electricity HVAC Exam Questions with Answers All Correct how much resistance must be placed in 120V curcuit in order to limit the current to 2Amps - Answer-60 Ohms when current flows in a 2 wire circuit such as 120v, if a clamp on amp meter is clamped around both wires what measurment would you expect. - Answer-0 amps - due to cancellation of 2 fields Current flow is? - Answer-The flow of electrons in the circuit. What is the symbol for impedence in an AC CIrcuit. - Answer-Z Impede...