A resident project representative may permit the use of substitute materials if:
A. he or she considers them equivalent.
B. they cost the same price.
C. there is a savings on the job by the substitution.
D. they have been approved by the architect/engineer.
E. if they are better than those originally specified.
D
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One mole of air, initially at 150°C and 8 bar, undergoes the following mechanically reversible changes. It expands isothermally to a pressure such that when it is cooled at constant volume to 50°C its final pressure is 3 bar. Assuming air is an ideal gas for which 
and 
calculate W, Q, ?U, and ?H.
What will be an ideal response?
On drive/steer axles, mount the wheel end to the axle housing, allowing the wheel end to turn from side to side.
Fill in the blank(s) with the appropriate word(s).
Stocking rate
What will be an ideal response?
When energy is released to do work, it is called potential energy.
Answer the following statement true (T) or false (F)