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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

Pick out the wrong statement about coating/electroplating of metals ?
A Phosphate coating is used as an excellent base for paints & enamels
B Phosphate coating is less corrosion resistant than chromate coating
C The base metal to be electroplated is normally made the cathode of the electrolytic cell and
D Calorising is the process of coating steel with chromium
Correct Answer: Calorising is the process of coating steel with chromium
Nusselt number/Biot number varies___________________?
A Inversely with thermal conductivity
B Directly with heat transfer co-efficient
C Directly with thermal conductivity
D Inversely with the dimension of the solid
Correct Answer: Inversely with thermal conductivity
Hooke’s law_______________________?
A Applies to elastic deformation
B Applies beyond limit of proportionality in stress-strain curve
C States that stress is inversely proportional to strain upto elastic limit
D None of these
Correct Answer: Applies to elastic deformation
In case of a, centrifugal pump, the ratio h1/h2 is termed as the _____________ efficiency (where, h1 = actual measured head & h2 = head imparted to the fluid by impeller)?
A Mechanical
B Overall
C Volumetric
D Impeller
Correct Answer: Mechanical
Increase in temperature, in general results in the____________________?
A Decrease in the viscosities of both liquids & gases
B Increase in the viscosities of both liquids & gases
C Increase in the viscosity of liquids and decrease in that of gases
D Decrease in the viscosity of liquids and increase in that of gases
Correct Answer: Decrease in the viscosity of liquids and increase in that of gases
Which of the following fastening devices has its both ends threaded ?
A Bolt
B Stud
C Set screw
D Split nut
Correct Answer: Stud
Dryness fraction of dry steam is_________________?
A 0
B ∞
C 1
D 0.5
Correct Answer: 1
Specific _________________ is a dimensionless quantity ?
A Heat
B Humidity
C Weight
D None of these
Correct Answer: None of these
‘GASOHOL’ widely used in Brazil as a motor fuel is a mixture of alcohol and____________________?
A Petrol
B LPG
C Light hydrocarbon gases (e.g. butane or propane)
D None of these
Correct Answer: Petrol
Batch process is preferred over continuous process, when the___________________?
A Product yields and quality cannot be achieved in continuous process, because of long
B Sales demand of product is not steady
C Same equipment cannot be used for several processes of the same nature
D All (A), B. & (C)
Correct Answer: Sales demand of product is not steady
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