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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

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.

Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of________________?

A Fireclay

B Silicon carbide

C Corundum

D Siliceous fireclay

Review Detailed Answer

Correct Answer: Silicon carbide

Pure oxide refractories are generally monocrystalline in nature and are self bonded _______________ bricks are generally used as moderator in nuclear reactors?

A Beryllia

B Carborundum

C Corundum

D Thoria

Review Detailed Answer

Correct Answer: Beryllia

Refractory bricks with lower permeability is produced by using __________________?

A Higher firing temperature

B Higher moulding pressure

C Finer grog size

D All A., B. and C.

Review Detailed Answer

Correct Answer: All A., B. and C.

Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to__________________?

A Thermal spalling

B Slag attack

C Fusion under load

D CO attack

Review Detailed Answer

Correct Answer: Thermal spalling

Addition of zircon to silica refractory brick improves its_____________________?

A Crushing strength

B Resistance to slag attack

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Resistance to slag attack

Bottom of basic open hearth furnace are constructed of__________________?

A Dead burnt magnesite ramming mass

B Porous fireclay bricks

C Semi-silica bricks

D Silicon carbide bricks

Review Detailed Answer

Correct Answer: Dead burnt magnesite ramming mass

Fusion temperature of pure silica (SiO2) is _______________ °C?

A 1350

B 1715

C 2570

D 2800

Review Detailed Answer

Correct Answer: 1715

Porosity of fireclay refractories is _______________ percent?

A 5-10

B 10-25

C 25-35

D 35-50

Review Detailed Answer

Correct Answer: 10-25

High alumina refractory compared to fireclay bricks have____________________?

A Less load bearing capacity

B Less resistance to slag attack

C Low refractoriness

D High resistance to thermal shock and creep

Review Detailed Answer

Correct Answer: High resistance to thermal shock and creep

The heat evolved in the combustion of benzene is represented by the equation: C6H6 + 7.5 O2 = 6CO2 + 3H2O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C6H6 is burnt in an open container, will be _____________ kJ/kgmole?

A +816.15

B +1632.3

C -1632.3

D -2448.45

Review Detailed Answer

Correct Answer: -1632.3

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Ceramic recuperators used for waste heat recovery from high temperature flue gas going out of the furnace is made of________________?

Pure oxide refractories are generally monocrystalline in nature and are self bonded _______________ bricks are generally used as moderator in nuclear reactors?

Refractory bricks with lower permeability is produced by using __________________?

Refractories subjected to alternate cycles of heating & cooling are liable to loose their resistance to__________________?

Addition of zircon to silica refractory brick improves its_____________________?

Bottom of basic open hearth furnace are constructed of__________________?

Fusion temperature of pure silica (SiO2) is _______________ °C?

Porosity of fireclay refractories is _______________ percent?

High alumina refractory compared to fireclay bricks have____________________?

The heat evolved in the combustion of benzene is represented by the equation: C6H6 + 7.5 O2 = 6CO2 + 3H2O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C6H6 is burnt in an open container, will be _____________ kJ/kgmole?