is usually either measured as the number of products produced within a period of time or the number of products produced per worker. (Select the best answer.)

Assembly line efficiency

Production energy efficiency

Cradle to grave design

Life cycle analysis

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.