List of top Questions asked in AP ECET Chemical Engg- 2025

If the matrix \[ A=\begin{bmatrix} 1 & 2 & 3\\ 4 & 5 & 6\\ 7 & 8 & 9 \end{bmatrix}, \] then which of the following is true?
Natural convection is characterised by
The heat transfer coefficient in film type condensation is _ _ _ _ that for drop wise condensation
The process of converting biomass into biogas is called:
Which of the following is usually not used as the heat exchange fluid in a flat plate solar collector?
Polluted water having low BOD is most economically treated in
Nuclear energy is due to conversion of
Wind energy, transferred to the large sea surface, is stored in waves as
Which of the following is an example for Renewable Fuels?
Which of the following is not combustible?
The greatest industrial disaster leading to serious air pollution took place in Bhopal in the year \(1984\), where the extremely poisonous methyl isocyanide gas was accidentally released from Union Carbide's _ _ _ _ manufacturing plant.
\(1\text{ ppm}\) is equivalent to
Acid rain is caused by increase in the atmospheric concentration of
In a food chain of grass land ecosystem the top consumers are
The local velocity of a fluid along a stream line can be measured by
The Air (Prevention and Control of Pollution) Act was legislated in the year
Which of the following device of particulate collection is least efficient?
Particulates \((<1\ \mu m\text{ size})\) remaining suspended in air and transported by wind currents are called as
Which gas is primarily responsible for the depletion of the ozone layer?

Radiation pyrometer measurement temperature range is _ _ _ _ \(^{\circ}C\)

Smoke density of the flue gas going out of the chimney is measured by
The following controller has the maximum offset
Thermal conductivity measurement comprises the working principle of
The dynamic characteristic of an instrument is
Ammonia present in the coke oven gas is removed by washing with