High-strength bolts are used in the construction of many steel structures. For a 1-in. nominal-diameter bolt, the required minimum bolt tension is 75000 lbs. Assuming the coefficient of friction to be 0.40,determine the required couple that should be applied to the bolt and nut. The mean diameter of the thread is 0.94 in.,and the lead is 0.125 in. Neglect friction between the nut and washer, and assume the bolt to be square-threaded.

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Different types of steels contain different elements that alter the characteristics of the steel. for each of the following elements, explain what the element does when alloyed with steel.

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false