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Technical Interview

Questions basically asked from following Topics

  • Heat Transfer operation (HTO)
    • Modes: Conduction, convection, radiation.
    • Equations: Fourier’s law, Newton’s law of cooling, Stefan-Boltzmann law.
    • Applications: Heat exchangers, heat transfer coefficients, and thermal insulation.
    • Heat Exchangers (its types and design steps)
  • Mass Transfer operation (MTO)
    • Concepts: Diffusion, mass transfer coefficients.
    • Processes: Distillation(its type, parts and difference and advantages disadvantages), absorption, extraction, drying, humidity, packed vs tray tower.
      Equipment: Packed columns, trays, and membrane systems.
    • Cooling tower types(design steps, dew point explanations)
  • Fluid Flow Operation (FFO)
    • Fundamentals: Types of fluids, Pumps (centrifugal pump is important)and Valves and viscosity, laminar and turbulent flow
    • Equations: Bernoulli’s equation(its importance and ideal situation assumption), Navier-Stokes equations, and continuity equation.(its importance )
    • NPSH , cavitation, fluid allocation and pump characteristics curve, scaling vs fouling, different type of dimensionless no.
    • Applications: Pipe flow, pump selection, flow measurement techniques
  • Chemical Reaction Engineering (CRE-I )
    • Kinetics: Reaction rates, rate laws, reaction order.
    • Reactors: Batch, CSTR (Continuous Stirred Tank Reactor), PFR (Plug Flow Reactor).
    • Design: Reactor design equations, conversion, and yield optimization.
  • Themodynamics
    • Basic Concepts: Laws of thermodynamics, energy, enthalpy, entropy.
    • Applications: Refrigeration cycles, Carnot cycle,phase equilibrium, thermodynamic cycles, and chemical potential.
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