Chemical Engineering MCQs

Page No. 778

Cassiterite is an ore of_________________?


aTin

✓


bLead

✖


cMolybdenum

✖


dChromium

✖


View Answer Tin

Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution ?


aA1 is more alkaline than solution A2

✖


bA1 is highly acidic

✖


cA2 is very slightly acidic

✖


dBoth B. & C.

✓


View Answer Both B. & C.

________________ is the hardest material out of the following ?


aBoron carbide

✓


bTungsten carbide

✖


cHardened steel

✖


dSilicon carbide

✖


View Answer Boron carbide

_______________ is the most important element, which controls the physical properties of steel ?


aManganese

✖


bSilicon

✖


cCarbon

✓


dVanadium

✖


View Answer Carbon

The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the _______________ allowance ?


aCasting

✖


bPattern

✖


cDraft

✓


dDistortion

✖


View Answer Draft

A thin, flat & square plate measuring 2 m × 2 m is freely hanging in ambient air at 25°C. It is exposed to the solar radiation falling on one side of the plate at the rate of 500 W/m2. The plate temperature will remain constant at 30°C, if the convective heat transfer co-efficient is ________________ W/m2 °C ?


a50

✖


b100

✓


c150

✖


d200

✖


View Answer 100

In the X-ray radiography technique, the tube voltage for thicker plates as compared to thin plates, should be________________?


aHigher, as it gives higher wavelength

✖


bLower, as it gives higher wavelength

✖


cHigher, as it gives shorter wavelength

✓


dLower, as it gives shorter wavelength

✖



What is the critical radius of insulation (cms) for a metallic cylinder, if the convective heat transfer co-efficient with the ambient atmosphere is 5 W/m2. °K? Thermal conductivity of metal and insulation material are 40 and 0.1 W/m.°K respectively ?


a2

✓


b8

✖


c10

✖


d40

✖


View Answer 2

For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other on volume basis (i.e., kcal/Nm3) while the C.V. is same on weight basis (i.e., kcal/kg) ?


aPropane and acetylene

✖


bPropane and LPG

✖


cSewage gas and gobar gas

✖


dB.F gas and coke oven gas

✓



The critical pressure at which the latent heat of vaporization of steam becomes zero is _____________ Kg/cm2 ?


a273.15

✖


b225.65

✓


c100.03

✖


d373.15

✖


View Answer 225.65

Goto Page No.

Page 778 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