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Chemical Engineering Basics

Uniform ramming of sand in green sand moulding process leads to____________________?

Chemical Engineering Basics /
Uniform ramming of sand in green sand moulding process leads to____________________?

A. Reduced chance of gas porosity
B. Greater dimensional stability of the casting
C. Uniform flow of molten metal into the mould cavity
D. Less sand expansion type of casting defect

Uniform ramming of sand in green sand moulding process leads to____________________? Read More »

Chemical Engineering Basics

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?

Chemical Engineering Basics /
During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________?

A. Time
B. Square root of time
C. Square of time
D. Cube of time

During decarburising of a plain carbon steel, the thickness of ferrite layer growth is proportional to____________________? Read More »

Chemical Engineering Basics

Breakeven point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost________________?

Chemical Engineering Basics /
Breakeven point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost________________?

A. Only
B. Plus variable cost
C. Plus overhead cost
D. Plus selling expenses

Breakeven point represents the condition, when the company runs under no profit no loss condition. In break even analysis, total cost comprises of fixed cost________________? Read More »

Chemical Engineering Basics

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are ?

Chemical Engineering Basics /
Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are ?

A. Cobalt, chromium & tungsten
B. Cobalt, chromium & nickel
C. Molybdenum, tungsten & chromium
D. Cobalt, zirconium & molybdenum

Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are ? Read More »

Chemical Engineering Basics

Heating of ferromagnetic materials to a temperature above Curie temperature makes it ________________________?

Chemical Engineering Basics /
Heating of ferromagnetic materials to a temperature above Curie temperature makes it ________________________?

A. Insulator for heat & electricity transmission
B. Ferritic
C. Behave like paramagnetic materials
D. Superconductor

Heating of ferromagnetic materials to a temperature above Curie temperature makes it ________________________? Read More »

Chemical Engineering Basics