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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

Magnesite chrome bricks are used in the___________________?
A Roof lining of basic open hearth & other basic furnaces
B Reheating furnaces
C Soaking pits
D All A., B. and C.
Correct Answer: All A., B. and C.
Conversion of silica mineral to Cristobalite is accompanied by reduction in its ____________________?
A Volume
B Specific gravity
C Both A. & B.
D Neither A. nor B.
Correct Answer: Specific gravity
Which of the following does not occur during firing/burning of refractories ?
A Removal of water of hydration
B Vitrification
C Decrease in crushing strength
D Development of stable mineral form
Correct Answer: Decrease in crushing strength
Grog addition in fireclay during brick manufacture is done to_________________?
A Reduce its shrinkage on heating
B Impart greater spalling resistance
C Enhance the strength of fired refractories
D All A., B. and C.
Correct Answer: All A., B. and C.
Carbon bricks are not used in the lining of the_________________?
A Combustion chamber of blast furnace stoves
B Electric furnaces
C Highly chemical resistant equipments
D Blast furnace hearth
Correct Answer: Combustion chamber of blast furnace stoves
Machine moulding of dry mixture of refractories requires a pressure of the order of _____________ kg/cm2?
A 10
B 100
C 500
D 1000
Correct Answer: 10
Porosity is induced in insulating refractories by adding________________?
A Powdered naphthalene
B Ammonium chloride/sulphate
C Calcium phosphate
D All A., B. and C.
Correct Answer: All A., B. and C.
Segar cones are used for the determination of ____________ of refractories?
A Softening temperature
B Spalling resistance
C Electrical conductivity
D Resistance to slag attack
Correct Answer: Softening temperature
Fusion point of an acidic refractory material is________________?
A Increased by the addition of basic oxides
B Reduced by the addition of basic oxides
C Not affected by the addition of basic oxides
D Always more than 2500°C
Correct Answer: Reduced by the addition of basic oxides
An ideal refractory should have high__________________?
A Spalling rate
B Fusion point
C Shrinkage ability
D None of these
Correct Answer: Fusion point
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