A graphical representation of air properties is
A) a temperature-pressure chart B) a pressure-temperature chart
C) a psychrometric chart D) an enthalpy chart
C
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The first accurate measurements of the properties of high-pressure gases were made by E. H. Amagat in France between 1869 and 1893. Before developing the dead-weight gauge, he worked in a mineshaft and used a mercury manometer for measurements of pressure to more than 400 bar. Estimate the height of manometer required.
What will be an ideal response?
When the symbol is shown astride the reference line, it indicates the weld is located ____ the members.
A. between B. above C. below D. beside
Scored bands can:
A) Become less flexible B) Become brittle C) Have reduced lives D) All of the above
Chimney crickets are required for all chimneys wider than ________ inches
A) 18 B) 24 C) 30 D) 12