Chemical Engineering MCQs

Page No. 396

Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a __________________?


aThermocouple


bResistance thermometer


cMercury in glass thermometer


dVapor pressure thermometer


View Answer Thermocouple

Time constant is the __________________?


aTime taken by the controlled variable to reach 63.2% of its full change


bSame as transportation lag


cSame as dead time


dTime required by the measured variable to reach 63.2% of its ultimate change



The maximum service temperature for fibre glass used as thermocouple wire insulation material is __________ °C?


a250


b500


c750


d1000


View Answer 500

A bimetallic thermometer as compared to industrial mercury in glass thermometer has almost the same_________________?


aTemperature measuring range (- 40°C to 450°C)


bAccuracy (± 1% of span)


cSpeed of response


dAll a, b & c


View Answer All a, b & c

Operating range of a temperature measuring instrument is 800 to 1600°C. It could be a/an _____________ pyrometer?


aRadiation


bOptical


cPhotoelectric


dNone of these


View Answer Photoelectric

Positioning controllers are used for _______________?


aLow loads


bTemperature changes


cHigh loads


dFlow rate changes


View Answer High loads

Reset rate is the another term used for ____________ time?


aDead


bIntegral


cDerivative


dNone of these


View Answer Integral

In a shell and tube heat exchanger, the flow rate of heating/cooling fluid is the ______________ variable?


aLoad


bControlled


cManipulated


dNone of these


View Answer Manipulated

The deflection in diaphragm (which is used as pressure sensor in pneumatic and electronic instruments) is dependent on the metal thickness, its diameter D. and shape & number of corrugations. Its deflection is proportional to_______________?


ad


bd2


cd3


dd4


View Answer d4

Nichol’s chart deals with __________________?


aA.R. vs. phase lag of first order


bA.R. vs. phase lag of second order


cClosed loop values vs. open loop values


dFrequency response values of controllers



Goto Page No.

Page 396 of 843

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