Chemical Engineering MCQs with explanations

Question 1

The pitot static tube does not measure the ________ pressure?

Accepted Answer

All A., B. and C.

Question 2

Third law of thermodynamics is concerned with the________?

Accepted Answer

Value of absolute entropy

Question 3

For a given substance at a specified temperature, activity is ________ to fugacity?

Accepted Answer

Directly proportional

Question 4

The equivalent diameter for pressure drop calculation for a duct of square cross-section is given by (where, x = each side of the square duct)?

Accepted Answer

x

Question 5

A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be________?

Accepted Answer

5 kmole/hr

Question 6

White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is________?

Accepted Answer

Coke oven gas

Question 7

Power required in case of forced draught as compared to induced draught (for the same draught produced) is________?

Accepted Answer

Less

Question 8

Which of the following equipments is not used in liquid-liquid extraction?

Accepted Answer

Pachuka tank

Question 9

Under conditions of equal reduced pressure and equal reduced temperature, substances are said to be in the ‘corresponding states’. At equal reduced conditions i.e., at the corresponding state, the ________ of different gases are nearly the same?

Accepted Answer

Compressibility

Question 10

The value of Stefan-Boltzmann constant in SI unit is________?

Accepted Answer

5.6697 × 10-8W/m2.°K4

Chemical Engineering MCQs with Explanations