1. Chemical manufacturers must present which information on the product's label? A) O Product identifier
B) O Contact information for the manufacturer
C) O Hazard pictograms
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DO All of the above

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

The higher the astm grain size number, the finer the gran is. a)-true b)-false