List of top Chemical, Thermal and Polymer Engineering Questions asked in Common University Entrance Test

For the same process temperatures, the ratio of the LMTD in parallel flow to the LMTD in counter-current flow in a liquid-liquid heat exchanger is always:

When a longitudinal baffle is placed across the shell, the shell-side fluid is forced to pass through the heat exchanger:

In a mixing tank operating at a very high Reynolds number 104, if the diameter of the im peller is doubled, keeping other conditions constant, the power required increases by a factor of:

Which of the following is a continuous filter?

Industrial paddle agitators turn at speed between:

Which of the following size reduction equipment can accept feed sizes of 10 inches and up?

Arrange the following flow measuring devices in the increasing order of head loss caused by them:
(A). Flow nozzle
(B). Venturimeter
(C). Orifice meter

Crude oil of kinematic viscosity 2.25 Stokes flows through a 20 cm diameter pipe. If the rate of flow is 1.5 liters/sec, what will be the type of flow?

A pressure of \( 500 \, \text{kPa} \) applied to \( 2 \, \text{m}^3 \) of liquid results in a volume change of \( 0.004 \, \text{m}^3 \). The bulk modulus in MPa is:

Bernoulli’s equation cannot be applied when the flow is:

Rain drops fall from a great height under gravity. Select the correct statement:

Impeller diameter in the case of a turbine agitator is:

The liquid phases considered under Navier-Stokes equations are

In order that the water shall never rise more than 100 cm above the crest for a discharge of 5 cubic meters per second, the length of the wire will be:

Fugacity is most suitable for

Which of the following statements is not valid for an ideal solution?

For estimation of heat capacity of a solid compound, one can use

Which of the following statements is true?

The direction of a particular spontaneous process is ascertained from which of the following Laws of Thermodynamics?

Molar entropy of vaporization at normal boiling point in J/K·mole is:

For a reversible process at constant pressure and temperature, the free energy change is

Gibbs free energy of mixing at constant temperature and pressure must always be

Hess’s law of constant heat summation is based on:

At a triple point, the number of phases present are

Which of the following is not an example of a closed system?