Electrical Engineering MCQs

Page No. 155

Which of the following devices will receive voltage surge first travelling on the transmission line ?


a Lightning arresters

✓


brelays

✖


cStep-down transformer

✖


dSwitchgear

✖



A _________ is used to measure the stator % winding temperature of the generator?


athermocouple

✖


bpyrometer

✖


cresistance thermometer

✓


dthermometer

✖



Distance relays are generally_____________?


asplit-phase relays

✖


b reactance relays

✖


cimpedance relays

✖


dnone of the above

✓


View Answer none of the above

relays are used for phase faults on long line?


aImpedance

✓


bReactance

✖


cEither of the above

✖


dNone of the above

✖


View Answer Impedance

relay is preferred for phase fault on short transmission line?


aInduction type

✖


bReactance

✓


cImpedance

✖


dNone of the above

✖


View Answer Reactance

For which of the following ratings of the transformer differential protection is recommended ?


aabove 30 kVA.

✖


bequal to and above 5 MVA

✓


cequal to and above 25 MVA

✖


dnone of the above

✖



The short circuit in any winding of the transformer is the result of_______________?


amechanical vibration

✖


binsulation failure

✖


cloose connection

✖


d impulse voltage

✓


View Answer impulse voltage

Which of the following circuit breakers has high reliability and minimum maintenance ?


a Air blast circuit breakers

✖


b Circuit breaker with SF6 gas

✓


cVacuum circuit breakers

✖


dOil circuit breakers

✖



Over voltage protection is recommended for______________?


ahydro-electric generators

✖


bsteam turbine generators

✖


cgas turbine generators

✖


dall of the above

✓


View Answer all of the above

What will be the reflection co-efficient of the wave of load connected to transmission line if surge impedance of the line is equal to load ?


aZero

✓


bUnity

✖


cInfinity

✖


dNone of the above

✖


View Answer Zero

Goto Page No.

Page 155 of 366

Alphabetical MCQs Categories
—

Here below You find all kind of categories of MCQs in alphabetical order.


"Comprehensive Collection of MCQs: Alphabetically Organized by Subject"
—

"Discover an extensive collection of multiple-choice questions (MCQs) neatly categorized by subject from A to Z. This resource is designed for anyone eager to explore various topics in a straightforward and organized manner. Whether you're a student preparing for exams, an educator seeking supplementary materials, or simply curious about different subjects, this compilation offers a convenient way to learn and assess your knowledge. With questions arranged alphabetically, navigation is effortless, allowing you to delve into subjects of interest at your own pace. Engage, learn, and expand your understanding with this accessible and comprehensive repository of MCQs!"


BolPakistan

bolpakistan.com.pk includes Job Mcqs and Pak Mcqs is the Top Largest Mcqs Forum in World, in which you can read Mcqs of All Subjects, PPSC test preparation, FPSC, NTS and PPSC PAST PAPERS, PPSC PAST MCQS. A Collection of Repeated MCQs for JOBs seekers.

Copyright © 2024, Designed & Developed by BolPakistan