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Chemical Engineering Basics

Chemical Engineering Basics
The ratio of coil diameter to wire diameter of a spring is called the spring

Form co-efficient
None of these
Index
Deflection

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Chemical Engineering Basics
Carbon is present in the form of __________ in grey cast iron.

Nodular aggregates of graphite
Flakes
Cementite
Spheroids

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

Cobalt, chromium & tungsten
Cobalt, zirconium & molybdenum
Cobalt, chromium & nickel
Molybdenun, tungsten & chromium

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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

5CaO . 3 Al2O₃
2CaO . SiO₂
3CaO . Al2O₃
3CaO . SiO₂

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Chemical Engineering Basics
Which of the following welding processes employs the highest welding temperature ?

Gas welding
Thermit welding
Arc welding
Resistance welding

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Chemical Engineering Basics
Wohler test is a destructive test to find out the __________ strength of a prepared metal specimen.

Tensile
Fatigue
Endurance
Creep

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