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.

Grog__________________?

A Contains both alumina and silica
B Is crushed firebrick
C Is a non-plastic material
D All A., B. and C.
Correct Answer: All A., B. and C.

Which of the following is not an acidic refractory?

A Silica bricks
B Fireclay bricks
C Bauxite bricks
D Magnesia bricks
Correct Answer: Magnesia bricks

Firing temperature of magnesite bricks is about _____________ °C?

A 800-1000
B 1000-1200
C 1600-1800
D 2400-2600
Correct Answer: 1600-1800

Silicon carbide refractories are used in the _____________?

A Muffle furnace
B Zinc smelting furnace
C Ceramic recuperators
D All A., B. and C.
Correct Answer: All A., B. and C.

Mixing of ground refractory material and water is done in a ______________ mill?

A Pug
B Ball
C Tube
D Rod
Correct Answer: Pug

With increase in the density of silica refractories, its_______________?

A Resistance to slag attack increases
B Spalling resistance reduces
C Both A. and B.
D Neither A. nor B.
Correct Answer: Both A. and B.

‘Spinel’, a refractory mineral is chemically represented as____________________?

A MgAl2O4
B MgAl2O3
C MgSO4
D MgAl2O3.2H2O
Correct Answer: MgAl2O4

SiO2 percentage in firebrick is about____________________?

A 35-40
B 55-60
C 80-85
D > 94
Correct Answer: 55-60

Which of the following impurities reduces the refractoriness of magnesite bricks ?

A Al2O3
B CaO
C SiO2
D All A., B. & C.
Correct Answer: All A., B. & C.

Semi-silica bricks compared to silica bricks have_______________?

A Less fusion point
B Better spalling resistance
C Both A. and B.
D Neither A. not B.
Correct Answer: Both A. and B.