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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

Casing head gasoline is the liquid __________________?
A Butane
B Propane
C Natural gas
D Gasoline separated from wet natural gas by compression
Correct Answer: Butane
The pressure (kg/cm2) and temperature (°C) maintained in electrical desalters for crude oil are respectively__________________?
A 10 and 120
B 1 and 200
C 50 and 250
D 10 and 300
Correct Answer: 1 and 200
A good lubricant should have high _____________________ ?
A Viscosity index
B Volatility
C Pour point
D None of these
Correct Answer: Viscosity index
Name the hydrocarbon having the poorest oxidation stability ?
A Naphthene
B Olefin
C Paraffin
D Aromatics
Correct Answer: Aromatics
Phenols are added in gasoline to____________________?
A Improve the octane number
B Act as an antioxidant
C Reduce its viscosity
D Increase its pour point
Correct Answer: Act as an antioxidant
Paraffin base crude oil as compared to asphalt base crude gives___________________?
A Higher yield of straight run gasoline
B Higher octane number gasoline
C Lower viscosity index lube oil
D Poorer yield of lube oil
Correct Answer: Higher yield of straight run gasoline
Flash point of an oil gives an idea of the___________________?
A Nature of boiling point diagram of the system
B Amount of low boiling fraction present
C Explosion hazards
D All A., B. and C.
Correct Answer: Nature of boiling point diagram of the system
Ethyl mercaptan is added to the Doctor negative LPG for facilitating the detection of its leakage (by bad odour) to the extent of about ________________ ppm?
A 1
B 50
C 5000
D 10000
Correct Answer: 50
The reservoir rock containing petroleum has_________________?
A Low porosity
B High permeability
C High porosity
D Both B. and C.
Correct Answer: Both B. and C.
Which is an anticing compound ?
A Amyl nitrate
B Alcohols
C Mercaptans
D Pyridine
Correct Answer: Alcohols
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