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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

Slide gates in teeming laddie used for steel pouring in ingot moulds is lined with _____________ bricks?
A Bakelite impregnated or fused periclase
B Silica
C Semi-silica
D Fireclay
Correct Answer: Bakelite impregnated or fused periclase
Colour of fireclay bricks is_________________?
A Light buff to reddish buff
B Yellow
C Black
D None of these
Correct Answer: Light buff to reddish buff
Crushing strength of a refractory____________________?
A Increases with rise in service temperature
B Decreases with rise in service temperature
C Is unaffected with change in service temperature
D Decreases with increase in porosity
Correct Answer: Decreases with rise in service temperature
The largest consumer of refractories is the _______________ industry?
A Cement
B Metallurgical
C Fertiliser
D Power
Correct Answer: Metallurgical
The highest melting pure oxide (m.p. > 3000°C)is___________________?
A Thoria
B Alumina
C Beryllia
D Zirconia
Correct Answer: Thoria
Zirconia refractories are not used in_____________________?
A Making sheaths for thermocouple
B Lining high temperature ceramic kilns
C Furnaces subjected to fluctuating temperature
D High frequency induction furnaces in the form of inductors
Correct Answer: Furnaces subjected to fluctuating temperature
Dolomite bricks have good resistance to attack by_____________________?
A Molten steel
B Iron oxide
C Lime slag
D None of these
Correct Answer: Molten steel
Fireclay refractories have __________________?
A Low co-efficient of thermal expansion
B Poor thermal spalling resistance
C Tendency to expand unduly high during firing
D Very high cost
Correct Answer: Low co-efficient of thermal expansion
Spray test determines the _____________ of refractories?
A Resistance to slag penetration
B Resistance to CO attack
C RUL
D Permanent linear change
Correct Answer: Resistance to slag penetration
PCE value (Segar cone) of Superduty refractories is more than 33, which is equivalent to a temperature of ____________ °C?
A 1520
B 1630
C 1670
D 1730
Correct Answer: 1730
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