Electrical Engineering MCQs

Page No. 262

In a capacitor start single-phase motor, when capacitor is replaced by a resistance____________?


atorque will increase

✖


b the motor will consume less power

✖


cmotor will run in reverse direction

✖


dmotor will continue to run in same direction

✓



Short-circuiter is used in_____________?


arepulsion induction motor

✖


b repulsion motor

✖


crepulsion start induction run motor

✓


dnone of the above

✖



The range of efficiency for shaded pole motors is______________?


a95% to 99%

✖


b80% to 90%

✖


c50% to 75%

✖


d5% to 35%

✓


View Answer 5% to 35%

Burning out of winding is due to___________?


ashort circuited capacitor

✓


bcapacitor value hiving changed

✖


copen circuiting of capacitor

✖


dnone of the above

✖



Direction of rotation of a split phase motor can be reversed by reversing the connection of__________?


arunning winding only

✖


bstarting winding only

✖


ceither A. or (b)

✓


dboth A. and (b)

✖


View Answer either A. or (b)

Which of the following motors is inherently self starting ?


aSplit motor

✖


bShaded-pole motor

✓


cReluctance motor

✖


d None of these

✖


View Answer Shaded-pole motor

The direction of rotation of an hysteresis motor is determined by____________?


ainterchanging the supply leads

✖


bposition of shaded pole with respect to main pole

✓


cretentivity of the rotor material

✖


d none of these

✖



A capacitor-start single phase induction motor is switched on to supply with its capacitor replaced by an inductor of equivalent reactance value. It will______________?


astart and then stop

✖


bstart and run slowly

✖


cstart and run at rated speed

✖


d not start at all

✓


View Answer not start at all

Which of the following motors is used in mixies ?


aRepulsion motor

✖


bReluctance motor

✖


cHysteresis motor

✖


d Universal motor

✓


View Answer Universal motor

In a single phase motor the centrifugal switch____________?


adisconnects auxiliary winding of the motor

✓


bdisconnects main winding of the motor

✖


creconnects the main winding the motor

✖


d reconnects the auxiliary winding of the motor

✖



Goto Page No.

Page 262 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