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February 2019

For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be___________________?

Chemical Engineering Basics /
For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be___________________?

A. 100% indirect reduction
B. 100% direct reduction
C. 50-60% indirect reduction
D. 30-40% indirect reduction

For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be___________________? Read More »

Chemical Engineering Basics

Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V – b) = RT, depends upon its___________________?

Chemical Engineering Basics /
Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V – b) = RT, depends upon its___________________?

A. Pressure & temperature
B. Pressure & specific volume
C. Temperature & specific volume
D. Temperature only

Internal energy of a gas obeying Van-Der-Waals equation of state, [p + (a/v2)] (V – b) = RT, depends upon its___________________? Read More »

Chemical Engineering Basics

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting) ?

Chemical Engineering Basics /
Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting) ?

A. V/A
B. V/A2
C. V2/A
D. V2/A2

Solidification time of a molten metal in a casting is proportional to (where, V = volume of metal & A = its surface area; in the casting) ? Read More »

Chemical Engineering Basics