This article will give you the list of subject specific questions frequently asked during interview. For Personal profile related and experience related questions refer General engineering interview questions.
Chemical engineering implies to the study of chemical and biological processes and design of industrial scale equipment for a cost and time efficient as well as safe production. It is also known as process engineering. Since chemical engineering involves the fields of sciences like physics, chemistry, biology and fields of engineering like equipment design, cost and time optimization, chemical engineers are subjected to a wide variety of questions. Chemical engineers can expect the following questions in an interview.
The third law states that 'As a system approaches absolute zero, the entropy of the system approaches a minimum value'.
Entropy is a measure of disorderliness. It explains the system's closeness to equilibrium.
It is the available energy or the greatest amount of mechanical work done by a system at constant temperature and pressure.
At 4 deg C the density of water is 1000 kg/cu.m.
It is a thermodynamic process at constant volume. Also called isovolumetric process
Continuous Stirred tank Reactor. Assumptions are steady state, constant density, constant temperature, one irreversible first-order reaction.
Advantages: Continuous operation, high conversion rate, less cost for operation. Disadvantages: temperature gradients, high maintenance cost.
Carbon monoxide oxidation, Nitrogen oxide reduction, uncombusted hydrocarbon oxidation.
In a common man's perspective, the increase in world temperatures is global warming. In an engineer's perspective, it is the average temperature increase in the surface temperature of the earth, mainly due to increased concentration of greenhouse gases. The greenhouse gases capture the heat radiated by the earth, inside the atmosphere, enabling the increase in temperature.
A technique for capturing carbon dioxide for a long term in order to reduce its effects on global warming.
Water vapor, carbon dioxide, ozone, methane, nitrous oxide and CFC.
It is the resistance to detonation of a fuel in a spark ignition engine compared to the isooctane-n-heptane mixture.
A spray condenser is used for the condensation of humid water vapor by direct contact with water. The inlet water is at a temperature less than the dew point of air in the chamber.
It works as gas-solid separation equipment using vortex formation.
Viscosity is a measure of a fluid's resistance to shear stress.
The critical radius of insulation is the thickness of an insulation that does not affect the convection resistance. It is the ratio of the thermal conductivity of the insulator to the convection heat transfer coefficient.
An ideal object that absorbs all electromagnetic radiations.