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Chemical Engineering Basics

Chemical Engineering Basics
The most detrimental impurity in high pressure boiler feed water is

Turbidity
Dissolved salt
Suspended salt
Silica

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Chemical Engineering Basics
A 2 kg object weighs 1.8 kgf on a spring balance. The value of 'g' at that location in m/seC₂ is

9.81
8.82
10.88
0.95

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Chemical Engineering Basics
The stress at which a metal fails by fatigue lies

In the plastic range
In the elastic range
Near the fracture point of the stress-strain curve
None of these

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Chemical Engineering Basics
Atomic __________ of an element is a whole number.

Radius
Volume
Number
Weight

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Chemical Engineering Basics
Materials having resistivity ranging from 1 to 100 ohm. cm is termed as

Insulator
Semi-conductor
Conductor
None of these

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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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