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.

For a cylindrical vessel of moderate height, the weld joint efficiency for joints parallel to the cylindrical axis is given as 1.0; while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylindrical vessel, what value of weld joint efficiency should be used ?
A 0.8
B 0.9
C 1.0
D (0.8)0.5
Correct Answer: 0.8
A steel member used in the furnace construction to take the thrust of the brickwork is called___________________?
A Buckstay
B Breast wall
C Armouring
D Baffle
Correct Answer: Buckstay
Basic bricks are not made of ___________________?
A Fireclay
B Magnesite
C Forsterite
D Chromite
Correct Answer: Fireclay
Pyrometric cone equivalent (PCE) value (Segar cone) of ‘Superduty refractories’ is more than 33 which corresponds to a temperature of _____________ °C?
A 1520
B 1630
C 1670
D 1730
Correct Answer: 1730
High thermal conductivity of a refractory material is not important, when it is to be used in the______________________?
A Coke oven regenerators
B Muffle furnace
C Blast furnace
D Recuperators
Correct Answer: Blast furnace
Magnesite bricks are used in those parts of furnaces, which are __________________?
A Subjected to temperature fluctuation
B Required to resist corrosive basic slag
C Subjected to high load
D None of these
Correct Answer: Required to resist corrosive basic slag
Fireclay bricks are never used in the______________?
A Beehive oven
B Coke oven walls
C Zinc roaster
D Lead blast furnace
Correct Answer: Coke oven walls
Resistance to slag attack of a refractory _____________________?
A Depends on the nature of slag & refractory
B Decreases at higher temperature
C Decreases, if defective joints & cracks exist in the refractory
D All A., B. and C.
Correct Answer: All A., B. and C.
Which is not an alumino-silicate refractory ?
A Fireclay bricks
B Mullite bricks
C Tar dolomite bricks
D High alumina bricks
Correct Answer: Tar dolomite bricks
An indication of degree of firing in silica brick is its____________________?
A Specific gravity
B Fusion point
C RUL
D None of these
Correct Answer: Specific gravity