What's the ampacity of a no. 10 tw copper wire in a raceway containing six wires and located in a area where the ambient temperature is 50°c?
a. 13.9 a
b. 8.6 a
c. 15.1 a
d. 10.8 a

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Fluids at rest possess no flow energy. a)- true b)- false