M C Q s D r i v e

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.

Chromite refractories_____________________?

A Are bonded with lime and clay
B (Free from silica) have better thermal fatigue resistance than silica and magnesite refractories.
C Are resistant to basic slag
D All A., B. and C.
Correct Answer: All A., B. and C.

_____________ nozzles are used in continuous casting of steel?

A Zircon
B Thoria
C Carborundum
D Beryllia
Correct Answer: Zircon

Which one expands on heating ?

A Silica bricks
B Fireclay bricks
C Both A. & B.
D Neither A. nor B.
Correct Answer: Silica bricks

Ferromagnetic ceramic material is not used in the__________________?

A Thermal insulation
B Transformers
C Magnetic switches
D Television sets
Correct Answer: Thermal insulation

Firing of refractory brick is done to __________________?

A Dehydrate the dried refractory
B Develop stable mineral forms in them
C Form ceramic bonds necessary for development of high crushing strength in the finished
D All A., B. and C.
Correct Answer: All A., B. and C.

Silica refractories__________________?

A crack when subjected to sudden change of temperature
B Cannot be used in the dome of hot blast stoves
C Have lower thermal conductivity than fireclay bricks
D All A., B. and C.
Correct Answer: crack when subjected to sudden change of temperature

Which is not a basic refractory ?

A Chrome magnesite
B Magnesite
C Dolomite
D Silicon carbide
Correct Answer: Silicon carbide

Which one contains maximum percentage of Al2O3 ?

A Firebrick
B Sillimanite
C Magnesite
D Aluminous firebrick
Correct Answer: Sillimanite

RUL of refractories depends on the _____________________?

A Chemical composition
B Physical structure
C Presence of impurities like iron & alkali
D All A., B. and C.
Correct Answer: All A., B. and C.

Periclase is___________________?

A Crystalline form of MgO
B MgCO3
C ZrSO4
D Amorphous magnesite
Correct Answer: Crystalline form of MgO