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: Isothermal process maintains constant
A) Volume
B) Entropy
C) Pressure
D) Temperature
Q: Entropy is a measure of
A) Energy
B) Heat
C) Pressure
D) Disorder
Q: In P&ID diagrams, control valves are represented by
A) Diamonds
B) Squares
C) Triangles
D) Circles
Q: Gas absorption is best when gas solubility is
A) Low
B) Constant
C) Negative
D) High
Q: First law of thermodynamics deals with
A) Heat loss
B) Energy conservation
C) Entropy
D) Power generation
Q: Pressure drop in packed bed increases with
A) Channeling
B) Low viscosity
C) Less flow
D) High particle size
Q: Common drying mechanism
A) Radiation
B) Diffusion
C) Convection
D) All of these
Q: Bubble point occurs when
A) Saturated liquid
B) Liquid is fully vaporized
C) Liquid starts boiling
D) Vapor condenses
Q: Activated sludge process is for
A) Sterilization
B) Water softening
C) Wastewater treatment
D) Oil recovery
Q: Main use of venturi meter
A) Absorb shocks
B) Control temperature
C) Compress gases
D) Measure flow rate