Chemical Engineering MCQs

Page No. 362

Coolant used in a boiling water reactor is________________?


aHydrogen gas


bWater


cSteam


dA mixture of water & steam



The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is ___________________?


a1


b0.5


c2


d4


View Answer 1

A radioactive substance does not emit________________?


aα-ray


bProton


cPosition


dβ-ray


View Answer Proton

Thermal shield is used in high powered nuclear reactors to__________________?


aProtect the walls of the reactor from radiation damage


bAbsorb the fast neutrons


cSlow down the secondary neutrons


dProtect the fuel element from coming in contact with the coolant



Commercial power generation from fusion reactor is not yet possible, because___________________?


aIt is difficult to control nuclear fusion reaction


bThe fuel required (i.e., deuterium & tritium) is scarce


cIt is difficult to initiate fusion reaction


dQuantity of fuel required for initiating fusion reaction is prohibitively high



Molten sodium (as a coolant in fast breeder reactor) ?


aCan’t attain high temperature at normal pressure


bIs not at all corrosive, even at a higher temperature


cIs highly radioactive at elevated temperatures and can cause explosion, when it comes in contact with air or water


dNone of these



Out of the following, nucleus of _____________ atom contains the largest number of neutrons?


aU-235


bU-238


cU-239


dPu-239


View Answer U-239

The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be _____________ percent?


a3.125


b6.25


c12.50


d25


View Answer 6.25

Nuclear reactors are provided with shield to guard against the emission of mainly _____________ rays?


aX


bα and β


cNeutrons & gamma


dInfrared


View Answer Neutrons & gamma

Which of the following is a moderating material used in nuclear reactor ?


aGraphite


bCadmium


cZircaloy (an alloy of zirconium and aluminium)


dStainless steel


View Answer Graphite

Goto Page No.

Page 362 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