Motor control circuit conductors that extend beyond the motor control equipment enclosure shall have short-
circuit and ground-fault protection sized not greater than percent of the value specified in Table 310.15(B)
(16) for 602 C conductors.
O a. 150
Ob.300
O c.400
O d. 100

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

The proportional limit is always greater than the yield strength for a material. a)-trune b)- false

Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volurge for a gas is much higher than the average volume for a liquid. d)-there is no difference