Which of the following is correct about the characteristics of i-joist: the deepest i-joist available is 18" the i-joist maximum span is 30' the i-joist is typically used for ceiling and flooring the i-joist is heavy and will require extra equipment on the jobsite all of the above

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.

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.

What is a monomer? how do they form a ploymer from the view point of chemical bonding?