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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

Solvent used in the Udex (glycol) extraction process for removal of light aromatics from cracked naphtha is_________________?
A Propane
B Diethylene glycol
C Aqueous solution (10% water) of diethylene glycol
D Methyl ethyl ketone (MEK)
Correct Answer: Aqueous solution (10% water) of diethylene glycol
Straight run petrol as compared to methyl/ethyl alcohol has_________________?
A Lower calorific value
B Lower octane number
C Higher specific gravity
D Higher ignition temperature
Correct Answer: Lower octane number
______________ test is done to find out the softening point of bitumen?
A Impact
B Ball and ring
C Flame
D Viscosity
Correct Answer: Ball and ring
In catalytic cracking process, olefins crack ______________ times faster than in thermal cracking process?
A 100
B 200-300
C 1000-10000
D 10
Correct Answer: 100
Which of the following processes in oil refinery does not employ „cracking‟?
A Coking
B Visbreaking
C Pyrolysis
D None of these
Correct Answer: None of these
Catalytic desulphurisation process used for sweetening of straight run gasoline and kerosene uses _______________ as catalyst?
A Bauxite
B Fuller’s earth
C Activated clay
D All A., B. & C.
Correct Answer: All A., B. & C.
Diesel index is defined as_________________?
A (°API) × (Aniline Point, °F)/100
B (°API) × (Aniline Point, °C)/100
C (°API) × (100)/Aniline Point, °F
D (°API) × (100)/Aniline Point, °C
Correct Answer: (°API) × (Aniline Point, °F)/100
Carbon/hydrogen ratio (by weight) is maximum (out of following) for_________________?
A Gasoline
B Kerosene
C Light gas oil
D Heavy fuel oil
Correct Answer: Gasoline
Stabilisation of gasoline (petrol) means ___________________?
A Removal of dissolved gases from it
B Increasing its oxidation stability
C Improving its lead susceptibility
D Increasing its vapour pressure
Correct Answer: Removal of dissolved gases from it
Naphthenic acid is represented by ___________________?
A CnH2n+2O2
B CnH2n-2O2
C CnH2n+2O2 (n ≥ 6)
D CnH2n+6O2 (n ≤ 6)
Correct Answer: CnH2n-2O2
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