While discussing PCM monitor tests: Technician A says that some monitors only run after another monitor completes. Technician B says that the monitor tests are run when the scan tool activates them. Who is correct? a. Technician A
b. Technician B
c. Both A and B
d. Neither A nor B

The y form of iron is known as: a) ferrite b) cementite c) perlite d) austenite

Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k

Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.