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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.

Which is not a high alumina refractory ?

A Mullite

B Corundum

C Bauxite

D Dolomite

Review Detailed Answer

Correct Answer: Dolomite

Spalling tendency of refractories is reduced by increasing its_________________?

A Porosity

B Specific gravity

C Thermal conductivity

D Strength

Review Detailed Answer

Correct Answer: Porosity

Natural silica___________________?

A Mainly contains quartz

B Is not stable at high temperature

C Transforms to other allotropic forms i.e. Tridymite and Cristobalite involving very high

D All A., B. and C.

Review Detailed Answer

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

. Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm2) is ______________ °C?

A 500

B 1000

C >1350

D >2000

Review Detailed Answer

Correct Answer: >1350

Carbon refractories_____________________?

A Do not burn/oxidise, when exposed to air on heating

B Are not attacked by slags, as they are not wetted by melts

C Do not resist temperature fluctuations

D Have extremely low thermal & electrical conductivities

Review Detailed Answer

Correct Answer: Are not attacked by slags, as they are not wetted by melts

Sillimanite is a _____________ refractory?

A Basic

B Neutral

C High alumina

D Insulating

Review Detailed Answer

Correct Answer: High alumina

Which is required in an insulating refractory ?

A High thermal conductivity

B Low porosity

C Both A. and B.

D Neither A. nor B.

Review Detailed Answer

Correct Answer: Neither A. nor B.

Ganister is a source of the ________________?

A Silica

B Periclase

C Lime

D None of these

Review Detailed Answer

Correct Answer: Silica

Refractoriness under load (RUL) is the most important property for the refractory bricks_________________?

A At the hearth bottom of the furnace on which stock is placed

B Used for furnace insulation

C Used in the roof of the furnace

D None of these

Review Detailed Answer

Correct Answer: At the hearth bottom of the furnace on which stock is placed

Which of the following bricks should not be used, if the furnace is to be used intermittently ?

A Firebricks

B Silica bricks

C Silicon carbide bricks

D Sillimanite

Review Detailed Answer

Correct Answer: Silica bricks

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Chemical Engineering Mcqs 9594 MCQs [All-Courses]

All Topics 9594

All Topics 9594

Which is not a high alumina refractory ?

Spalling tendency of refractories is reduced by increasing its_________________?

Natural silica___________________?

. Refractoriness under load (RUL) of fireclay bricks (under a load of 2 kg/cm2) is ______________ °C?

Carbon refractories_____________________?

Sillimanite is a _____________ refractory?

Which is required in an insulating refractory ?

Ganister is a source of the ________________?

Refractoriness under load (RUL) is the most important property for the refractory bricks_________________?

Which of the following bricks should not be used, if the furnace is to be used intermittently ?