Electrical Engineering MCQs

Page No. 141

One condition for oscillation is_____________?


aA phase shift around the feedback loop of 180o

✖


bA gain around the feedback loop of one-third

✖


cA phase shift around the feedback loop of 0o

✓


dA gain around the feedback loop of less than 1

✖



The total resistance of a parallel circuit is 50 Ω. If the total current is 120 mA, the current through the 270 Ω that makes up part of the parallel circuit is approximately_______________?


a22 mA

✓


b120 mA

✖


c220 mA

✖


d50 mA

✖


View Answer 22 mA

The crystal oscillator frequency is very stable due to___________of the crystal?


aRigidity

✖


b Vibrations

✖


cLow Q

✖


dHigh Q

✓


View Answer High Q

In a phase shift oscillator, the frequency determining elements are _______________?


aL and C

✖


bR, L and C

✖


cR and C

✓


dNone of the above

✖


View Answer R and C

Hartley oscillator is commonly used in______________?


aRadio receivers

✓


bRadio transmitters

✖


cTV receivers

✖


dNone of the above

✖


View Answer Radio receivers

A 470 Ω resistor, a 220 Ω resistor, and a 100 Ω resistor are all in parallel. The total resistance is approximately________________?


a790 Ω

✖


b470 Ω

✖


c 60 Ω

✓


d30 Ω

✖


View Answer 60 Ω

Four equal-value resistors are connected in parallel. Ten volts are applied across the parallel circuit and 2 mA are measured from the source. The value of each resistor is______________?


a12.5 Ω

✖


b 200 Ω

✖


c20 KΩ

✓


d50 Ω

✖


View Answer 20 KΩ

In an LC oscillator, the frequency of oscillator is____________L or C?


aProportional to square of

✖


bDirectly proportional to

✖


c Independent of the values of

✖


d Inversely proportional to square root of

✓



When a 1.6 kΩ resistor and a 120Ω resistor are connected in parallel, the total resistance is____________?


agreater than 1.6 kΩ

✖


bgreater than 120 but less than 1.6 kΩ

✖


cless than 120 but greater than 100 Ω

✓


dless than 100 Ω

✖



An ammeter has an internal resistance of 50 Ω. The meter movement itself can handle up to 1 mA. If 10 mA is applied to the meter, the shunt resistor, RSH1, is approximately___________?


a55 Ω

✖


b 5.5 Ω

✓


c50 Ω

✖


d9 Ω

✖


View Answer 5.5 Ω

Goto Page No.

Page 141 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