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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

Hot face insulating linings of high purity alumina fused mullite are used, where_________________?
A Very high temperatures are involved
B Highly reducing conditions are involved
C Presence of iron or silica is harmful
D All A., B. and C.
Correct Answer: All A., B. and C.
Dry mix hydraulic compositions of refractory aggregates with suitable bonding materials are called refractory_________________?
A Mortars
B Cements
C Castables
D None of these
Correct Answer: Castables
Cermets are____________________?
A Composite material containing both ceramic & metallic constituents
B Having high strength & resistance to high temperature
C Used in space vehicles, missiles & nuclear energy plants
D All A., B. and C.
Correct Answer: All A., B. and C.
To resist spalling tendency, a refractory should have________________?
A Greater diffusivity
B Low specific heat
C Low thermal co-efficient of expansion
D All A., B. and C.
Correct Answer: All A., B. and C.
High refractoriness of refractory bricks means, that it has a________________?
A High spalling resistance
B Low spalling resistance
C High resistance to fusion
D Low porosity
Correct Answer: High resistance to fusion
Spalling resistance of a refractory cannot be increased by ____________________?
A Increasing its porosity
B Using a coarser grog during its manufacture
C Decreasing its thermal co-efficient of expansion
D Making it denser
Correct Answer: Making it denser
Which property is important for bricks used in the combustion chamber & dome of blast furnace stoves ?
A High refractoriness
B High resistance to spalling
C High strength and density
D All A., B. and C.
Correct Answer: High refractoriness
Cold crushing strength of refractories depends upon its_________________?
A Composition
B Texture
C Firing temperature
D All A., B. and C.
Correct Answer: All A., B. and C.
Maximum apparent porosity of magnesite bricks is about _____________ percent?
A 8
B 24
C 44
D 58
Correct Answer: 24
Chromite refractories are used in_______________?
A Bottom of soaking pits
B Between acid & basic linings in basic open hearth furnaces to prevent their chemical action
C Both A. & B.
D Neither A. and B.
Correct Answer: Both A. & B.
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