Chemical Engineering Basics Mcqs

Q.  A steam pipe is intended to be insulated with two layers of insulating materials of different thermal conductivities. For minimum heat transfer to take place_________________?

a. The better insulation material should be put just next to pipe (i.e., inside)
b. The better insulating material should be put outside
c. Either of the insulating material could be put on either side
d. Steam temperature is considered before deciding as to which insulating material is to be put inside (i.e., just next to the pipe)


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Maximum heat dissipation occurs from a steel wire (k = 0.5 W/m. k) of 15 mm diameter exposed to air (h = 20W/m2 .k), when the insulation thickness is ________________ mm?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Parallel straight line pattern of temperature distribution for both hot and cold fluids is observed in case of heat exchanger of the type________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Though tin occurs lower than iron in the electrochemical series, yet it is coated on steel for corrosion protection, because of its________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Steel produced from phosphatic iron is _______________ in nature?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pick out the wrong statement ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pick out the wrong statement?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pick out the wrong statement ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pick out the wrong statement ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pick out the correct statement ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Pick out the wrong statement?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  On prolonged exposure to high concentration of carbon monoxide (> 5000 ppm), man dies because __________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  In water treatment plant, zeolite process is used to remove the _____________ of water?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Disinfection of water is done to remove ______________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about _______________ decibels?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The average thickness of ozone layer in stratosphere is about _______________ dobson unit (DU)?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  CFC (chloro fluoro carbon) is very highly reactive in causing depletion of ozone layer in the atmosphere. Each atom of chlorine liberated from CFC is capable of decomposing ________________ molecules of ozone?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The upper layer of atmosphere is called the ____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The term Biological Oxygen Demand (BOD) is used in relation to ______________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Very small amount of air pollutants are present in stratosphere also; though most of the atmospheric pollutants are present in the troposphere. Which of the following atmospheric pollutants does not cause the ozone layer depletion in atmosphere at tremendous rate ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts