List of top Chemical Engineering Questions

For a given fluid, as the pipe diameter increases, the pumping cost
Operating profit of a chemical plant is equal to
Use of I-control along with P-control facilitates
The closed loop pole of a stable second order system could be
In a single tank system, the transfer function of level to inlet flow rate is
What is the ratio of output amplitude to input amplitude for a sinusoidal forcing function in a first order system?
Transfer function of transportation lag is
The transfer function for a PID controller is (where, \( \tau_I \) is the integral (reset) time and \( \tau_D \) is the derivative time.)
For an input forcing function, \( X(t) = 2t^2 \), the Laplace transform of this function is
A proportional controller with a gain of \( K_c \) is used to control a first order process. The offset will increase, if
An algebraic equation relating the Celsius and Fahrenheit is
The volumetric expansion of a liquid caused by temperature changes is minimum for
Which of the following thermocouples will give the highest output for the same value of hot and cold junction temperature?
A negative gain margin expressed in decibels means a/an _____ system
U-tube manometer is an example of
Rate of solid-state diffusion does not depend on which of the following?
The dispersion model accounts for
According to tanks in series model, the spread of the tracer curve is proportional to
Which of the following is a desirable characteristic of an instrument?
The reaction in which the rate of reaction is a function of rate constant alone is
Pick out the most suitable instrument for measuring temperature in the range of \(-40^\circ C\) to \(425^\circ C\)
In autocatalytic reactions
For a zero order reaction, the fractional conversion of the reactant is
For an ideal plug flow reactor the value of the Peclet number is
The rate equation in which rate equation corresponds to a stoichiometric equation is called