Chemical Engineering Basics
Load cells used for the measurement of weight has

All of these
Provision of thermal compensation and is hermetically sealed
Compact & rugged construction with an accuracy of 0.1 to 1%
No moving parts and incurs negligible deflection under load

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Chemical Engineering Basics
Which of the following is not a characteristic observed in material failure by fatigue fracture ?

Initation of crack occurs on the surface of the machine part
Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface
Initiation of crack from below the surface does not occur
Plastic deformation of material does not occur

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Chemical Engineering Basics
Maraging steels derive their strength from the following mechanism:

Fine dispersions of Fe₃ C nucleated on dislocations in austenite
A fine, highly dislocated and strong martensite
Fine dispersions of intermetallics of Fe, Ni, Ti etc
Fine dispersions of alloy carbides in a ferrite matrix

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