Chemical Engineering - MCQ Practice Questions
Chemical Engineering questions for GATE and PSU exams are built on a handful of core subjects applied in many ways. Practice spans fluid mechanics, heat transfer, mass transfer, chemical reaction engineering, thermodynamics, process control and instrumentation, and plant design economics. Numerical solutions carry the assumptions written out, because the assumption is usually what separates a correct answer from a plausible one.
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The Peclet number (Pe = Re·Pr) is used to determine the relative importance of convection to conduction. For Pe << 1, which heat transfer mechanism is dominant?
A shell-and-tube heat exchanger with one shell pass and two tube passes (1-2 STHE) has a correction factor F. What is the typical range of F values?
In convective heat transfer, which dimensionless number represents the ratio of buoyant to viscous forces?
For radiation heat transfer between two surfaces, increasing the absolute temperature of the hot surface by 10% will increase radiative heat transfer by approximately what percentage?
The overall heat transfer coefficient U in a composite system (series resistances) is determined by which method?
In pool boiling, the critical heat flux (CHF) occurs at which point on the boiling curve?
The Prandtl number (Pr = Cp·μ/k) represents the ratio of which two transport properties?
In a multipass heat exchanger design, increasing the number of shell passes from 1 to 2 will predominantly affect which parameter?