Electrical Engineering MCQs

Page No. 276

Shunt generators are most suited for stable parallel operation because of their______________?


arising voltage characteristics

✖


b identical voltage characteristics

✖


cdrooping voltage characteristics

✓


d linear voltage characteristics

✖



As a result of armature reaction, the reduction in the total mutual air gap flux in a D.C. generator is approximately______________?


a 40 percent

✖


b 25 percent

✖


c10 percent

✖


d5 percent

✓


View Answer 5 percent

The critical resistance of the D.C. generator is the resistance of_____________?


afield

✓


bbrushes

✖


carmature

✖


d load

✖


View Answer field

The series field of a short-shunt D.C. generator is excited by_______________?


aexternal current

✖


b armature current

✖


cshunt current

✖


dload current

✓


View Answer load current

In a separately excited generator supplying rated load the armature reaction.


ais always present

✓


bis always absent

✖


cmay be sometimes present

✖


dnone of the above

✖


View Answer is always present

For both lap and wave windings, there are as many commutator bars as the number of_____________?


aslots

✖


barmature conductors

✖


c winding elements

✓


dpoles

✖


View Answer winding elements

Wave winding is composed of_______________?


aany even number of conductors

✖


b any odd number of conductors

✖


cthat even number which is exact multiple of poles + 2

✓


dthat even number which is exact multiple of poles

✖



The number of armature parallel paths in a two-pole D.C. generator having duplex lap winding is______________?


a2

✖


b4

✓


c6

✖


d8

✖


View Answer 4

In a D.C. generator:___________________?


aexternal resistance = internal char-acteristic – armature reaction

✖


binternal characteristic = magnetisation characteristic – ohmic drop

✖


cexternal characteristic = magnetisation characteristic – ohmic drop – armature reaction

✓


dmagnetisation characteristic = external characteristic

✖



In a D.C. generator the critical resistance can be increased by_____________?


aincreasing its field resistance

✖


bdecreasing its field resistance

✖


cincreasing its speed

✓


ddecreasing its speed

✖


View Answer increasing its speed

Goto Page No.

Page 276 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