M C Q s D r i v e

Chemical Engineering Mcqs 9594 MCQs [All-Courses]

thumb

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.

Presence of predominantly large quantity of aromatics (polynuclear) is not desirable in aviation fuel, because it has__________________?
A High pour point and low smoke point
B Low viscosity index
C High self-ignition temperature
D All A., B. and C.
Correct Answer: Low viscosity index
Which of the following is desirable in petrol (gasoline) but undesirable in kerosene ?
A Paraffins
B Aromatics
C Mercaptans
D Naphthenic acid
Correct Answer: Mercaptans
Which of the following factors does not govern the mechanism of petroleum formation from organic sources ?
A pH of the soil
B Bacterial action
C Heat
D Pressure
Correct Answer: pH of the soil
Maximum viscosity of tar/PCM/fuel oil for easy and efficient atomisation in conventional burner is _______________ centistokes (or 100 Redwood I seconds) ?
A 5
B 25
C 50
D 100
Correct Answer: 5
Aromatics have the highest ________________ of all the hydrocarbons of same carbon atoms?
A Smoke point
B Octane number
C Cetane number
D Viscosity
Correct Answer: Octane number
Lane and Garton classification of petroleum is based on its ____________________?
A Composition
B Specific gravity
C Optical properties
D Viscosity
Correct Answer: Specific gravity
Road grade bitumen is produced from vacuum residue by its ____________________?
A Aeration
B Pyrolysis
C Hydrogenation
D Steam reforming
Correct Answer: Steam reforming
Products drawn from the top to bottom of the crude oil distillation column has progressively increasing ___________________?
A Boiling points
B Molecular weight
C C/H ratio
D All A., B. and C.
Correct Answer: All A., B. and C.
Iso-octane is used as a reference substance in the definition of octane number and it is assigned an octane number value of 100. Iso-octane is chemically known as ___________________?
A α-methyl naphthalene
B 2-2-4 tri methyl pentane
C 1, 3 butadiene
D Tetra methyl ethylene
Correct Answer: 2-2-4 tri methyl pentane
Cetane number of a diesel fuel is the measure of its____________________?
A Ignition delay
B Smoke point
C Viscosity
D Oxidation stability
Correct Answer: Ignition delay