List of practice Questions

Froth flotation is primarily based on differences in:

Which device separates dust particles from gas by centrifugal force?

Screen effectiveness is defined as the ratio of

In screen analysis, cumulative oversize refers to:

Which equipment is most suitable for mixing dry powders with similar particle sizes and densities?

A jaw crusher is mainly used for:

Which law of size reduction is applicable when the surface area of particles is more important than size?

Evaporator economy is defined as:

According to Stefan-Boltzmann law, the radiant energy emitted by a black body is proportional to:

Which of the following statements is TRUE for counter-current heat exchangers when compared to parallel-flow exchangers?

Fouling factor in heat exchangers represents:

The log mean temperature difference (LMTD) method is used in heat exchangers to account for:

The convective heat transfer coefficient mainly depends on:

For heat conduction through a hollow cylinder, the heat transfer rate depends on:

When thermal resistances are arranged in series, the overall thermal resistance is equal to

In steady-state heat conduction through a plane wall, which of the following remains constant?

Fourier's law of heat conduction states that the rate of heat transfer is proportional to the:

Minimum fluidization velocity in a fluidized bed corresponds to the condition when:

The drag force experienced by a body moving through a fluid is mainly due to:

A centrifugal pump is most suitable for handling:

Which of the following flow meters works on the principle of pressure difference?

Head loss due to friction in a pipe carrying fluid is directly proportional to

According to Bernoulli's theorem, for an ideal fluid the sum of pressure energy, kinetic energy and potential energy is:

The SI unit of dynamic viscosity is:

A Newtonian fluid is defined as one in which the shear stress is: