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Machine Design - Engineering

Q1:

Which of the following statement is correct ?

A The toughness of a material increases when it is heated.

B The shear stress in a beam varies from zero at the neutral surface and maximum at the outer fibres.

C The stress concentration in static loading is more serious in brittle materials and less serious in ductile materials.

D The stress concentration in static loading is more serious in ductile materials and less serious in brittle materials.

ANS:C - The stress concentration in static loading is more serious in brittle materials and less serious in ductile materials.

Explanation: No answer description is available.