Question 1 of 4
1. What describes the amount of calcium or magnesium present in water?

Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented

Have a greater impact on maintenance productivity than any other support group. (clo5) a)-the top management b)-inventory and purchasing c)-sub-contracting d)-cmms

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?