Rectifiers Study guides, Class notes & Summaries

NACE CP2 Exam Questions and Answers oxidation - Answer-loss of electrons, positive charge atoms (anode) reduction - Answer-gain of electrons, negative charged atoms (cathode) forms of corrosion - Answer-uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydro...

1. oxidation: loss of electrons, positive charge atoms (anode) 2. reduction: gain of electrons, negative charged atoms (cathode) 3. forms of corrosion: uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydrogen embrittlement, SCC (Carbonates/bicarbonates) 4...

If 5.0 A of battery current passes through the outside leads of a 4-wire current span spaced at 30 m (100 ft), resulting in a voltage drop of 5.0 mV with the test current applied and of 1 mV without the test current, what is a the calibration factor of the current span? A. 0.00025 A/mV B. 4.0 A/mV C. 1.25 A/mV D. 5.0 A/mV - ANSWER-C. 1.25 A/mV I = 5 A EC = 5 mV ENC = 1 mV K = I/(EC - ENC) = 5 A/(5 mV - 1 mV) = 1.25 A/mV Polarized potentials are measured A. when the rectifiers are...

CWB Level 2 Study Modules 4-5-6-7-8--22 Questions and Answers Rated A During arc welding there is a zone adjacent to the weld metal that reaches high temperatures but does not melt. What is the name of this region? Heat Affect Zone (HAZ) In parallel electrical circuits, the voltage across each resistor is the same since each path is connected to the same voltage source. Select the correct statement. A. in each parallel path the resistance must be equalized to create equal voltage. B. the cur...

1. oxidation: loss of electrons, positive charge atoms (anode) 2. reduction: gain of electrons, negative charged atoms (cathode) 3. forms of corrosion: uniform, crevice, galvanic (dissimilar metals) if two metals have to be couple then best to couple metals close together in the galvanic series, pitting, intergranular, selective leaching (dezincification, graphitization), velocity phenomena, environmental cracking (corrosion fatigue, hydrogen embrittlement, SCC (Carbonates/bicarbonates) 4...

Associate CET Practice Exam - Questions and Answers A schematic used in electronic servicing: is much like a road map for following signals High voltage should be discharged before servicing a product. After disabling. After disabling AC input power, discharge an HV PS by: draining through a large value resistor to chassis ground Which of these would be an important electrical consideration in the use of a transformer? The operating frequency If a 12v product is dissipating 50w, how much load ...

During arc welding there is a zone adjacent to the weld metal that reaches high temperatures but does not melt. What is the name of this region? - correct answerHeat Affect Zone (HAZ) In parallel electrical circuits, the voltage across each resistor is the same since each path is connected to the same voltage source. Select the correct statement. A. in each parallel path the resistance must be equalized to create equal voltage. B. the current flowing in each parallel path must be the same ...

Welding is a joining process that by definition requires: - ANSWER-The application of either heat or pressure The duty cycle of a welding power supply is based upon delivering its rated output for a given number of minutes. Which of the following statements is correct. A. a 300 amp/60% duty cycle machine is rated to deliver 300 amps for 6 minutes in a ten minute period B. a 300 amp/30% duty cycle machine is rated to deliver 300 amps in a ten minute period C. a 250 amp/30% duty cycle mach...

Modernization Advanced Complete Test 2024. Do cylinder and ram need to be replaced as a matching set? - ANSWER It is recommended to change both in a set Do selenium rectifiers pass current in one directions? - ANSWER Yes Is there should be oil on the ram when in use. - ANSWER Yes, there needs to be oil After a modernization is complete an inspection must be done before it is released to the public? - ANSWER Yes, a TSSA inspector must come in and make sure it is safe for the public E...

CWB Complete Set Exam {10 Modules Combined } Actual Questions With Expert Verified Solutions| Latest Update During arc welding there is a zone adjacent to the weld metal that reaches high temperatures but does not melt. What is the name of this region? - ANSWER Heat Affect Zone (HAZ) In parallel electrical circuits, the voltage across each resistor is the same since each path is connected to the same voltage source. Select the correct statement. A. in each parallel path the resis...