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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

Clay treatment is used to remove ___________________ ?
A Salt from the crude oil
B Colour & dissolved gases from cracked gasoline
C Wax from lube oil
D None of these
Correct Answer: Wax from lube oil
Which of the following is the easiest to crack ?
A Paraffins
B Olefins
C Naphthenes
D Aromatics
Correct Answer: Paraffins
Which parameter is used for the grading of paraffin waxes ?
A Specific gravity
B Melting point
C Viscosity
D Penetration number
Correct Answer: Viscosity
Higher vapour pressure of gasoline indicates _________________?
A Low flash point
B High breathing loss
C Both A. and B.
D Neither A. nor B.
Correct Answer: Neither A. nor B.
1 centistoke is equal to ______________ Redwood I seconds?
A 1
B 4.08
C 0.408
D 40.8
Correct Answer: 4.08
Which of the following fractions of petroleum contains maximum sulphur ?
A Diesel
B Gasoline
C Naphtha
D Atmospheric residue
Correct Answer: Atmospheric residue
Good quality kerosene should have__________________?
A Low smoke point
B High smoke point
C High aromatics content
D Low paraffins content
Correct Answer: High smoke point
Catalyst used in alkylation process is__________________?
A Sulphuric acid
B Nickel
C Silica gel
D Alumina
Correct Answer: Sulphuric acid
Cracking is___________________?
A An exothermic reaction
B An endothermic reaction
C Favoured at very low temperature
D None of these
Correct Answer: An endothermic reaction
Concentration of H2SO4 catalyst in alkylation is kept between 90-98%, because H2SO4 having concentration?
A Less than 90% promotes polymerisation
B More than 98% promotes cracking
C Both A. and B.
D Neither A. nor B.
Correct Answer: Both A. and B.
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