The following data for the activities of a project are available: ACTIVITY IMMEDIATE PREDECESSOR DURATION (DAYS) A - 6 B - 4 C - 7 D A, B,C 5 E A, B,C 6 F D 9 G E 4 H F, G 8 I F, G 6 J H 7 Required: i. Draw the network, number the nodes, find the project completion time and calculate total, free and independent floats for the activities ii. When the activity duration of G is doubled, identify the critical path

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.

The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length

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