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Chemical Engineering Basics

Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is_____________________?

Chemical Engineering Basics /
Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is_____________________?

A. 5CaO. 3 Al2O3
B. 3CaO. Al2O3
C. 3CaO. SiO2
D. 2CaO. SiO2

Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is_____________________? Read More »

Chemical Engineering Basics

______________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently ?

Chemical Engineering Basics /
______________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently ?

A. Collar
B. Flanged
C. Bell and Spigot
D. Expansion

______________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where it may be necessary to dismantle & reassemble the pipeline very frequently ? Read More »

Chemical Engineering Basics

Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner ?

Chemical Engineering Basics /
Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner ?

A. Output & fineness
B. Velocity
C. Both A. & B.
D. None of these

Which of the following varies as the square root of oil pressure during atomisation of fuel oil through a pressure jet burner ? Read More »

Chemical Engineering Basics

The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong _____________________?

Chemical Engineering Basics /
The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong _____________________?

A. Base and strong acid
B. Base and weak acid
C. Acid and weak base
D. None of these

The heat of neutralisation remains constant, when there is a reaction between dilute solutions of strong _____________________? Read More »

Chemical Engineering Basics