Chemical Engineering Subcategories

Chemical Engineering	Chemical Reaction
Polymer Technology	Fuels and Combustion
Refractory Technology	Fluid Mechanics for Chemical
Thermodynamics for Chemical	Materials and Construction
Fertilizer Technology	Chemical Environmental Engineering

Caking index of a coal is a measure of its _______________________?

A. Abradability
B. Reactivity
C. Agglutinating (binding) properties
D. Porosity

Main component of sewage gas produced during anaerobic decomposition of organic waste (by suitable bacteria) during sewage disposal is __________________?

A. H2
B. CH4
C. CO2
D. N2

The shift conversion reaction taking place during water gas manufacture is given by__________________?

A. C + H2O ↔ CO + H2
B. C + 2H2O ↔ CO2 + 2H2
C. CO + H2O ↔ CO2 + H2
D. None of these

_____________ of the coal is the basis for Seylor’s coal classification?

A. Proximate analysis
B. Ultimate analysis
C. Caking index
D. Calorific value

In case of pulverised coal fired steam boiler, the secondary air serves the main purpose of__________________?

A. Transportation of coal
B. Drying of coal
C. Combustion of coal by supplying it around the burner
D. Preheating the primary air

In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by__________________?

A. Cuprous chloride
B. Potassium hydroxide
C. Alkaline pyrogallol solution
D. None of these

Washing of coal decreases its_________________?

A. Caking index
B. Mineral matter content
C. Ash content
D. Both B. and C.

To avoid fire by spontaneous combustion of coal due to its low temperature oxidation, it should be stored in___________________?

A. Shallow and small piles
B. Fine sizes without the presence of any lump
C. Closed space without any ventilation facility
D. Large heaps with small surface to volume ratio

The gas which contributes maximum to the heating value of natural gas is __________________?

A. CO
B. CO2
C. H2
D. CH4

Nitrogen in coal_________________?

A. Is present upto 1-2%
B. Comes from protein in parent vegetable matter
C. Is recovered as ammonia during its carbonisation
D. All A., B. and C.