Electrical Engineering MCQs

Page No. 256

The motor used for the compressors is____________?


ad.c. series motor


b shaded pole motor


c capacitor-start capacitor-run motor


d reluctance motor



The purpose of stator winding in the compensated repulsion motor is to_____________?


aprovide mechanical balance


bimprove power factor and provide better speed regulation


cprevent hunting in the motor


d eliminate armature reaction



The rotor slots, in an induction motor, are usually not quite parallel to the shaft because it_____________?


aimproves the efficiency


bhelps the rotor teeth to remain under the stator teeth


chelps in reducing the tendency of the rotor teeth to remain under the stator teeth


d improves the power factor



In a ceilingfan employing capacitor run motor____________?


asecondary winding surrounds the primary winding


bprimary winding surrounds the secondary winding


cboth are usual arrangements


dnone of the above



The speed/load characteristics of a universal motor is same as that of_____________?


a A.C. motor


bD.C. shunt motor


cD.C. series motor


dnone of the above


View Answer D.C. series motor

The shaded pole motor is used for__________?


ahigh starting torque


blow starting torque


cmedium starting torque


dvery high starting torque


View Answer low starting torque

If the centrifugal switch does not open at 70 to 80 percent of synchronous speed of motor, it would result in_________?


adamage to the starting winding


bdamage to the centrifugal switch


coverloading of running winding


dnone of the above



Speed torque characteristic of a repulsion induction motor is similar to that of a D.C____________?


ashunt motor


bseries motor


ccompound motor


d separately excited motor


View Answer compound motor

In split phase motor main winding is of _____________?


athin wire placed at the top of the slots


b thin wire placed at the bottom of the slots


c thick wire placed at the bottom of the slots


dthick wire placed at the top of the” slots



In repulsion motor, maximum torque is developed when____________?


abrush axis is at 45° electrical to the field axis


b brush axis coincides with the field axis


cbrush axis is at 90° electrical to the field axis


dnone of the above



Goto Page No.

Page 256 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