List of top Chemical Engineering Questions

The solubility of sodium chloride in water at 290K is 35.8 kg/100 kg water. What is the mass fraction of sodium chloride in the solution?
The number of degrees of freedom for a mixture of liquid water and liquid toluene (immiscible in water) in equilibrium with their vapours is:
Cox charts are plotted
An organic compound is found to contain $ \mathrm{C} = 54.5% $, $ \mathrm{O} = 36.4% $, and $ \mathrm{H} = 9.1% $ by weight. Its empirical formula is:
Which of the following methods of depreciation calculations results in book values greater than those obtained with straight line method?
Operating profit of a chemical plant is equal to
If an amount $R$ is paid at the end of every year for '$n$' years, then the net present value of the annuity at an interest rate of '$i$' is
Which is the suitable contacting equipment for gas-liquid operations involving liquids with dispersed solids?
Liquid remaining in unit volume of bed after bed is drained is called as
In the tray distillation column, flooding determines
The number of bubble caps to be used per tray is determined from
A specific advantage of using steam as a heating medium in exchangers is its
In a multistage compressor, intercooling is done to:
In which of the following type of heat exchanger the heat exchange between the two fluids occur by their complete physical mixing?
Main function of baffles on the shell side of a heat exchanger is to
Routh test
Bode diagram is generated from output response of the system subjected to _____________________ input
In a Second-order system of under-damped case, the decay ratio and overshoot are related as:
A servo control loop responds for
Which of the following controllers has more oscillatory behaviour in response?
Response of a linear control system for a change in set point is called
If the system is stable, the response is smooth and non-oscillatory (damping coefficient, $\xi>1$), the response is referred to as
If initial conditions for a system are inherently zero, what does it physically mean?
Thermal diffusivity of a material ($ \alpha $) is defined as:
The catalyst used in the low-pressure Ziegler process for polyethylene manufacture _____________________