1. The power transformer that used to steps the voltage down from transmission levels todistribution levels is called:A) Substation transformerC) Distribution transformerB) Unit transformerD) Potential transformer.2. The primary and secondary windings of an ideal transformer havepower factor.A) Higher.B) Much lower.D) Lower.C) Same.3. Volt-amperes reactive (VAR) is the unit that used to measure theA) Active power.B) Reactive power.C) Real power.D) Apparent power.4. The portion of the flux that goes through one of the transformer coils but not the other oneis called.A) Average fluxB) Mutual fluxC) Total fluxD) Leakage flux5. The fundamental component of the magnetization currentthe voltage applied to thecore by90°:A) Lags, 45°.B) Leads, 45°.C) Lags, 90°.D). Leads, 90°.6. The---- are resistive heating losses in the core of the transformer.A) Hysteresis losses.B) Copper losses.C) Leakage flux losses.D) Eddy current losses.7. The total rotational losses of an induction motor are a combination of:A) Friction lossesB) Windage losses.D) Stray losses.C) Core losses.8. Induction motors are now the preferred choice for industrial motors due toA) absence of brushes.B) Small size.C) Le control requirements.rugged construction.9. For an induction motor, if the synchronous speed is 1800 r/m, and the rotor speed180rad/sec, then the slip will be:A) 5.5%C) 6%B) 4.5%D) 4%10. The lower the speed of an induction motor, theA) Higher its friction, windage, and stray lossesC) Lower its friction, windage, and stray lossesB) Lower Core lossesD) Higher Core Losses

For the above given multiple choice questions we need to give the correct answer of the given…

1. The power transformer that used to steps the voltage down from transmission levels to distribution levels is called: A) Substation transformer B) Unit transformer D) Potential transformer. C) Distribution transformer ➖➖➖➖➖➖➖➖➖ 2. The primary and secondary windings of an ideal transformer have power factor. A) Higher. C) Same. B) Much lower. D) Lower. 3. Volt-amperes reactive (VAR) is the unit that used to measure the A) Active power. B) Reactive power. C) Real power. D) Apparent power. 4 The portion of the flux that goes through one of the transformer coils but not the other one

1. The power transformer that used to steps the voltage down from transmission levels to distribution levels is called: A) Substation transformer B) Unit transformer D) Potential transformer. C) Distribution transformer ➖➖➖➖➖➖➖➖➖ 2. The primary and secondary windings of an ideal transformer have power factor. A) Higher. C) Same. B) Much lower. D) Lower. 3. Volt-amperes reactive (VAR) is the unit that used to measure the A) Active power. B) Reactive power. C) Real power. D) Apparent power. 4 The portion of the flux that goes through one of the transformer coils but not the other one

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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