Chemical Engineering Basics Mcqs

Q.  Identify the correct statement with reference to the extractive metallurgy of aluminium ?

a. The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3
b. Approximately 80% of the aluminium deposited on the cathode comes from cryolite
c. Sodium is deposited along with aluminium, but is immediately vaporised
d. Anode effect sets in when the cryolite concentration goes below 40%.


ANSWER: See Answer
 
No explanation is available for this question!
MCQs:  Gas turbine normally employs a constant _______________ cycle?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Surface tension of a liquid_________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Boiler draught of 10 mm water column is equivalent to_____________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  What is the range of tempering temperature (°C) for most of the materials ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Heat transfer by ______________ is almost absent in case of fluidised bed drying operation?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The ‘laughing gas’ is__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Regeneration of molecular sieve requires it to be heated to a temperature of about __________________ °C?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  ____________________ metal is used as a bearing liner material?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Melting point & boiling points of liquid oxygen are respectively – 218.8°C & – 183°C, while the same for liquid nitrogen is – 210°C & – 195.8°C respectively. The difference in melting points of liquid oxygen & liquid nitrogen is not equal to 8.8 ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The activity of pure hydrogen gas at 1000°C and 5 atm pressure_________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Brazing filler metal used for joining steel plates_________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  If the head is doubled in & centrifugal pump, the power required will increase in the ratio of__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  The minimum temperature to which the water can be cooled in a cooling tower is the ______________ temperature of air?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Ammonia gas can be dried by___________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  ‘Dikes’ are low height walls made around the storage vessels meant for storing hazardous & inflammable material (e.g., petroleum products). Volume of dikes is equal to (where, V = volume of the storage vessel) ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  On decreasing the grain size of a polycrystalline material, the property most likely to deteriorate is__________________?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
MCQs:  Out of the following substances, one ton of ______________ will store the maximum heat for a rise of 30°C in temperature ?
Category: Chemical Engineering Mcqs,   Published by: T-Code Scripts
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