List of top Questions asked in TS PGECET- 2026

Baffles in the shell side of a shell and tube heat exchanger

The thermal conductivity is minimum for

In a heat exchanger, floating head is provided to

LMTD for counter flow and parallel flow heat exchanger will be the same, when

For a blackbody, the wavelength at which the maximum monochromatic emissive power occurs is

In a feed forward multiple effect evaporator unit

The most efficient equipment for removal of sub-micron dust particles from blast furnace gas is

Crushing efficiency is the ratio of

In a fertilizer plant, in which of the following equipment, molten ammonium nitrate is mixed with ground lime-stone

In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as

Which one of the following is valid for a laminar flow of filtrate through a cake deposited on septum?

Weber number is the ratio of

For continuous reverse air cleaning in a fabric filter, gas-to-fabric ratio normally varies from

Sorting classifier uses a sink-and-float method to separate particles based on the

During size reduction, the optimum speed of ball mill must be

In a gyratory crusher, the size reduction is effected primarily by

If the frequency of the stirrer in a mixing tank is increased by a factor of 2 while all other parameters are kept constant, by what factor is the power requirement increased at high Reynolds number?

The velocity distribution in the turbulent boundary layer follows

For a centrifugal pump with a specific impeller diameter, operating at a fixed speed and handling a fluid of constant density

Fluids which show an apparent increase in viscosity with time are called

Cavitation can be prevented by

A rotameter

High pressure steam is expanded adiabatically and reversibly through a well-insulated turbine which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by $\Delta H$ and $\Delta S$ respectively for this process, then:

Generalized compressibility factor chart is a plot of:

For a fully turbulent flow ($\text{Re} \gt 10^5$) in a pipe of diameter $d$, with a constant pressure gradient, the volumetric flow rate ($Q$) of an incompressible fluid varies with the diameter as: