Chemical Engineering MCQs
Chemical Engineering MCQs provide a strong foundation for those preparing for competitive exams and interviews in the chemical industry. The questions cover core topics including process calculations, heat transfer, mass transfer, chemical reaction engineering, plant design, safety, and environmental concerns. Whether you are a fresh graduate or preparing for job assessments through FPSC, PPSC, or NTS, this section helps reinforce key concepts and identify knowledge gaps. The MCQs reflect actual exam trends and are especially useful for test-based recruitment and academic success in the chemical engineering field.
Q: Gas chromatography separates based on
A) Solubility
B) Boiling point
C) Vapor pressure
D) Density
Q: Heat transfer by conduction is most efficient in
A) Vacuum
B) Gases
C) Solids
D) Liquids
Q: Steam reforming primarily converts hydrocarbons into
A) Methanol
B) Hydrogen
C) Ethanol
D) Ammonia
Q: Ideal gas law becomes inaccurate at
A) High pressure
B) Low temperature
C) Low pressure
D) High temperature
Q: The equipment used to dry heat-sensitive materials
A) Tray dryer
B) Rotary dryer
C) Freeze dryer
D) Spray dryer
Q: Zinc is commonly extracted from
A) Sphalerite
B) Chalcopyrite
C) Hematite
D) Bauxite
Q: The function of Raschig rings in a tower
A) Pressure reduction
B) Heat transfer
C) Absorption
D) Increase surface area
Q: Nusselt number relates to
A) Mass transfer
B) Momentum transfer
C) Heat flux
D) Convective heat transfer
Q: The key controlling parameter in distillation
A) Temperature gradient
B) Reflux ratio
C) Pressure
D) Tray diameter
Q: Fouling in heat exchangers causes
A) Pressure drop
B) Enhanced flow
C) Increased efficiency
D) Insulation failure