Which of the following is the typical carbon concentration range for cast irons?

a. 1.0 wt% - 1.5wt% c
b. 1.0 wt% - 2.0wt% c
c. 2.0 wt% - 3.0wt% c
d. 2.0 wt% - 3.5wt% c
e. 3.0 wt% - 4.0wt% c
f. 3.0 wt% - 4.5wt% c

Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?

What is the main objective of using reheat rankine cycle?

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.