Electrical Engineering MCQs

Page No. 40

_______________has the least value of starting torque to full load torque ratio?


a D.C. shunt motor


b D.C. series motor


cSquirrel cage induction motor


dSlip ring induction motor


View Answer D.C. series motor

Battery operated scooter for braking uses__________________?


aplugging


bmechanical braking


cregenerative braking


drheostatic braking


View Answer rheostatic braking

Which of the following machines has heavy fluctuation of load ?


aPrinting machine


bPunching machine


cPlaner


dLathe


View Answer Lathe

In which of the following applications the load on motor changes in cyclic order ?


aElectric shovels


bCranes


cRolling mills


dAll of the above


View Answer All of the above

For derries and winches which of the following drives can be used ?


aPole changing squirrel cage motors


b D.C. motors with Ward-leonard con-trol


cA.C. slip ring motors with variable resistance


dAny of the above


View Answer Any of the above

In case of _______________ speed control by injecting e.m.f. in the rotor circuit is possible?


ad.c. shunt motor


bschrage motor


c synchronous motor


d slip ring induction motor



___________________has least range of speed control?


aSlip ring induction motor


bSynchronous motor


cD.C. shunt motor


dSchrage motor


View Answer Synchronous motor

Flame proof motors are used in_________________?


apaper mills


b steel mills


cmoist atmospheres


d explosive atmospheres



In squirrel cage induction motors which of the following methods of starting cannot be used ?


aResistance in rotor circuit


b Resistance in stator circuit


c Auto-transformer starting


dStar-delta starting



Heat control switches are used in__________________?


atransformers


bcooling ranges


cthree phase induction motors


dsingle phase


View Answer cooling ranges

Goto Page No.

Page 40 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