Chemical Engineering MCQs

Page No. 357

The critical mass of a fissionable material can be reduced by__________________?


aHeating it

✖


bCooling it

✖


cSurrounding it by neutron reflecting material

✓


dSurrounding it by neutron absorbing material

✖



Energy equivalent to one atomic mass unit (amu) is ______________ MeV?


a9.31

✖


b93.1

✖


c931

✓


d9310

✖


View Answer 931

Which of the following is the most harmful for the human being ?


aβ-rays

✖


bX-rays

✖


cγ-rays

✓


dUltra violet rays

✖


View Answer γ-rays

A fast breeder reactor employs___________________?


aGraphite as moderator

✖


bWater as coolant

✖


cMolten sodium as coolant as well as moderator

✖


dU-235 as fuel

✓


View Answer U-235 as fuel

Both tritium and deuterium have the same number of_______________?


aNeutrons

✓


bElectrons

✖


cProtons

✖


dNucleons

✖


View Answer Neutrons

Main source of ______________ is monazite sand?


aUranium

✖


bPolonium

✖


cHafnium

✖


dThorium

✓


View Answer Thorium

Research reactors are normally meant for_____________________?


aProducing high neutron flux 1012-1013 neutrons/cm2, sec and studying the effect of neutron bombardment on different materials

✓


bAccelerating the neutrons

✖


cPower generation

✖


dNone of these

✖



Artificially produced radioactive isotopes are used for____________________?


aPower generation

✖


bTreatment of certain diseases

✓


cInitiating nuclear fission and fusion

✖


dAll A., B. and C.

✖



Which one is different for the neutral atoms of the isotopes of an element ?


aAtomic weights

✓


bAtomic numbers

✖


cNumber of protons

✖


dNumber of electrons

✖


View Answer Atomic weights

Uranium is recovered from its ore (pitchblende) by________________?


aFroth floatation technique

✖


bLeaching with sulphuric acid

✓


cSmelting in a furnace

✖


dDissolving in water

✖



Goto Page No.

Page 357 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