Chemical Engineering MCQs
Chemical Engineering MCQs cover process calculations, heat/mass transfer, reaction engineering, plant design, safety, and environment, helping FPSC, PPSC, NTS candidates and graduates strengthen concepts, match exam trends, and prepare for competitive tests and chemical industry careers.
Q: Fourier’s law governs
A) Heat conduction
B) Momentum
C) Mass transfer
D) Radiation
✅ Correct Answer: A
Explanation: Relates heat flux to temperature gradient.
Q: Langmuir isotherm explains
A) Vapor pressure
B) Fluid flow
C) Adsorption
D) Evaporation
✅ Correct Answer: C
Explanation: Describes monolayer adsorption behavior.
Q: Bernoulli’s equation relates
A) Pressure, velocity, and height
B) Temperature and volume
C) Mass and time
D) Enthalpy and entropy
✅ Correct Answer: A
Explanation: Derived from energy conservation in fluids.
Q: Azeotropes are
A) Solids
B) Liquids
C) Constant boiling mixtures
D) Ideal gases
✅ Correct Answer: C
Explanation: Show fixed boiling behavior at certain compositions.
Q: Flash distillation is suitable for
A) High viscosity liquids
B) Binary mixtures
C) Solids
D) Reactive chemicals
✅ Correct Answer: B
Explanation: Separates components quickly using pressure/temperature drop.