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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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Chemical Engineering MCQs designed for job test and interview preparation, particularly for fresh graduates, students, and candidates appearing in competitive exams. These multiple-choice questions cover important topics such as the fundamentals of chemical engineering, chemical processes, chemical reactions, process control, and instrumentation, along with other key concepts in the field.

All Topics  9594

The catalyst used in shift converter is___________________?
A Nickel
B Vanadium
C Silica gel
D Alumina
Correct Answer: Nickel
Dry ice (solidified CO2) is used for the___________________?
A Storage & shipment of frozen foods and ice-creams
B Liquefaction of permanent gases
C Liquefaction of natural gas
D None of these
Correct Answer: Storage & shipment of frozen foods and ice-creams
______________ is used as a flux in the extraction of iron from iron ore (haematite) in blast furnace?
A Bauxite
B Limestone
C Quartz
D Manganese
Correct Answer: Limestone
At very high concentration of enzymes, the rate of fermentation chemical reaction is _____________ the concentration of reactants?
A Independent of
B Directly proportional to
C Inversely proportional to
D Proportional to the square of
Correct Answer: Independent of
The biochemical treatment applied to sewage effluents is a process of__________________?
A Dehydration
B Reduction
C Oxidation
D Polymerisation
Correct Answer: Oxidation
Transparent soaps (e.g. Pears) are____________________?
A Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and
B Metallic soaps with frothing agent and free Stearic acid to achieve transparency
C Metallic soaps with frothing agent from which glycerine has not been recovered
D None of these
Correct Answer: Usually soft soap (made from coconut oil) in which cane sugar & alcohol are added and
Very dilute solutions are generally used in fermentation reactions for which the optimum temperature range is ____________ °C?
A -5 to 0
B 5 to 10
C 30 to 50
D 75 to 80
Correct Answer: 30 to 50
Reverse osmosis is normally used for the_______________?
A Separation of isotopes of uranium from gaseous uranium hexafluoride
B Separation of helium from natural gas
C Desalination of brackish water to produce potable (drinking) water
D Purification of oxygen
Correct Answer: Desalination of brackish water to produce potable (drinking) water
Chloral is used in the manufacture of__________________?
A DDT
B BHC
C Parathion
D None of these
Correct Answer: DDT
Higher viscosity index of a lubricating oil denotes_______________?
A Less changes in fluidity of oil with temperature
B Substantially high change in fluidity of oil with temperature
C Its unsuitability under varying temperature conditions
D None of these
Correct Answer: Less changes in fluidity of oil with temperature
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