Electrical Engineering MCQs

Page No. 287

Which of the following method is used for the speed control of DC shunt motor?


avoltage control method

✖


b flux control method

✖


crheostat control method

✖


d all of the above

✓


View Answer all of the above

If the field winding resistance of a DC shunt motor is increases, its speed will____________?


a decreases

✖


b increases

✓


c remains same

✖


d none of the above

✖


View Answer increases

With the increase in temperature, the speed of DC series motor______________?


a decreases

✓


b increases

✖


c remain same

✖


dnone of the above

✖


View Answer decreases

With the increase in temperature, the speed of DC shunt motor____________?


adecreases.

✖


b increases

✓


c remain same

✖


d none of the above

✖


View Answer increases

In which of the following device the generated emf and armature current are in the opposite directions?


adc generator

✖


b dc motor

✓


c transformer

✖


dall of the above

✖


View Answer dc motor

If the load on a DC shunt motor is increases, its speed is slightly reduced due to______________?


aincrease in armature current

✖


bincrease in flux

✖


cdecrease in reactance

✖


ddecrease in back emf

✓


View Answer decrease in back emf

One D.C. motor drives another D.C. motor. The second D.C. motor when excited and driven_______________?


aruns as a generator

✓


bdoes not run as a generator

✖


calso runs as a motor comes to stop after sometime

✖


dNone of these

✖


View Answer runs as a generator

The speed of a D.C. shunt motor is required to be more than full load speed. This is possible by______________?


areducing the field current

✓


bdecreasing the armature current

✖


cincreasing the armature current

✖


dincreasing the excitation current

✖



In the D.C. motor the iron losses occur in____________?


athe field

✖


bthe armature

✓


cthe brushes

✖


dthe commutator

✖


View Answer the armature

Which D.C. motor has got maximum self relieving property ?


a Series motor

✓


b Shunt motor

✖


cCumulatively compounded motor

✖


d Differentially compounded motor

✖


View Answer Series motor

Goto Page No.

Page 287 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