Which of the following statements about intersystem bonding is correct? a. Intersystem bonding is required at the service equipment but is optional at buildings supplied by a feeder.
b. Intersystem bonding is optional at the service equipment but is required at buildings supplied by a feeder.
c. Intersystem bonding is required at the service equipment and at buildings supplied by a feeder as well.
d. Intersystem bonding is required at the main distribution for mobile home parks but is not required at the disconnecting means at the mobile home.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.

Agas contained within a piston-cylinder assembly e end nation about same energy states, 1 and 2, where pi 10 bar, v undergoes two processes, a and b, between the sam 0.1 m3, ui-400 kj and p2 1 bar, v2 1.0 m2, u2 200 kj: process a: process from 1 to 2 during which the pressure- volume relation is pv constant process b: constant-volume process from state 1 to a pressure of 2 bar, followed by a linear pressure-volume process to +20 0 state 2 kinetic and potential energy effects can be ignored. for each of the processes a and b, (a) sketch the process on p-v coordinates, (b) evaluate the work, in kj, and (c) evaluate process the heat transfer, in kj