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: Distillation efficiency is measured by
A) Residence time
B) Plate count
C) Murphree efficiency
D) Reflux ratio
Q: Dehumidification involves
A) Reducing temperature
B) Removing moisture
C) Adding water
D) Adding heat
Q: Sublimation is transition from
A) Solid to gas
B) Gas to solid
C) Liquid to gas
D) Solid to liquid
Q: Diffusion coefficient increases with
A) Increased pressure
B) Higher viscosity
C) Smaller molecules
D) Lower temperature
Q: Main advantage of fluidized bed reactor
A) Uniform temperature
B) High cost
C) Poor control
D) Catalyst deactivation
Q: Fourier’s law governs
A) Heat conduction
B) Momentum
C) Mass transfer
D) Radiation
Q: Langmuir isotherm explains
A) Vapor pressure
B) Fluid flow
C) Adsorption
D) Evaporation
Q: Bernoulli’s equation relates
A) Pressure, velocity, and height
B) Temperature and volume
C) Mass and time
D) Enthalpy and entropy
Q: Azeotropes are
A) Solids
B) Liquids
C) Constant boiling mixtures
D) Ideal gases
Q: Flash distillation is suitable for
A) High viscosity liquids
B) Binary mixtures
C) Solids
D) Reactive chemicals