Constant voltage - Study guides, Class notes & Summaries

CWB 2 All Module Exams Latest Update with Verified Solutions A Plasma is: A) A gas made up of positive ions and free electrons B) A liquid used to reduce adherence of spatter C) The main component in an inverter power source D) Always present in an electrical circuit A) A gas made up of positive ions and free electrons To increase melting rate (burn-off rate) in the shielded metal arc welding (SMAW) process, which polarity should be used? A) DCEP B) ACEP C) DCEN D) ACEP C) DCEN Which ty...

ATT Test 8 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: Which rectifier is the least efficient using only half the input? Answer: Half-wave Q: Which two rectifiers require two input signals 180 degrees out of phase? Answer: Full-wave and bridge Q: Which rectifier uses a center tapped transformer? Answer: Full wave Q: How is frequency determined for half wave rectifier? Answer: Output frequency is same as i...

NATE Gas Heating Exam Verified Questions and answers 2023 Latest Update Since 1992, the United States Department of Energy has required that all furnaces sold and installed from that date on must have an AFUE of no less than: A: 70% B: 75% C: 78% D: 80% - correct answer C: 78% Many pre-1992 furnaces have efficiencies around . A: 10% B: 40% C: 60% D: 80% - correct answer C: 60% Today, furnaces with AFUE ratings greater than are available. A: 85% B: 90% C: 100% D: 110% - correct ...

RNAS C Practice Test Review 437 Questions with Verified Answers A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. if in series, voltage drops would occur they can be treated together If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: A. 25%. B. 33%. C. 67%. D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...

Zener current will decrease Refer to figure 1. If the load resistance R2 is reduced by half what happens what happens to zener diode? 4v Refer to figure 1. The zener diode is designed to breakdown at 6VDC what is the voltage drop across R1 with a constant DC supply of 10VDC 30 rpm An elevators motor rotates at 1200 rpm at contract speed and is geard at a ratio of 40:1. If the motor turns 40 rpm the sheave turns 1 rpm. What is the actual speed of the drive sheave in rpms? Th...

IBHRE CEPS - Trouble Questions with 100% Complete Answers

Rheobase - the lowest point on a strength duration curve at an infinitely long pulse duration Chronaxie time - the pulse width at twice the rheobase value. It approximates the most efficient stimulation pulse duration Charge (formula) - Charge= I(current) x T(time) Furman's formula - Energy(microjoules)= I(current)xV(voltage)xT(pulse width) Ohms law formula - Voltage(electromotive force)= I(current/flow of electrons) x R(resistance to current flow in ohms) Functional Refractory P...

ATT Test 6 (Latest 2024/ 2025 Update) Questions and Verified Answers| 100% Correct| Grade A Q: What is JFET cutoff? Answer: a large negative gate voltage that increases junction barrier so much that current flow stops (vgg > vdd) Q: What is JFET saturation? Answer: A negative gate voltage so small that decreases the junction barrier to a point where it no longer decreases, constant current flow Q: What causes constant current flow in JFET? Answer: JFET satur...

CWB 2 All Module Exams A Plasma is: A) A gas made up of positive ions and free electrons B) A liquid used to reduce adherence of spatter C) The main component in an inverter power source D) Always present in an electrical circuit - A) A gas made up of positive ions and free electrons To increase melting rate (burn-off rate) in the shielded metal arc welding (SMAW) process, which polarity should be used? A) DCEP B) ACEP C) DCEN D) ACEP - C) DCEN Which type of welding power so...

CETA Exam Questions And Answers VGA - ANSWER- 640 x 480 256 Colors 15 Pins SVGA - ANSWER- 800 x 600 256 Colors 15 Pins XGA - ANSWER- 1024 x 768 or 1366 x 768 16 mil, HD Colors 15 Pins Widescreen - ANSWER- 1280 x 720 or 1920 x 1080 DVI or HDMI Connectors Random Access Memory - ANSWER- RAM Read Only Memory - ANSWER- ROM Programmable Read Only Memory - ANSWER- PROM Electrical Programmable Read Only Memory - ANSWER- EPROM Electrically Erasable PROM - ANSWER- EEPROM 50 Ohms - ANSWE...