Cite the phases that are present and the phase compositions for the following alloys: (a) 15 wt% sn—85 wt% pb at 100°c [212°f)(b) 25 wt% pb—75 wt% mg at 425°c (800°f)(c) 85 m96 ag—15 wt% cu at 800°c (1470°f)(d) 55 wt% zn—45 wt% cu at 600°c (1110°f](e) 1.25 kg sn and 14 kg pb at 200°c (390°f)(f) 7.6 lbm cu and 144.4 lbm zn at 600°c (1110°f](g) 21.7 mol mg and 35.4 mol pb at 350°c [660°f](h) 4.2 mol cu and 1.1 mol ag at 900°c (1650°f)

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.