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A piston-cylinder device with a set of stops initially contains 0.3 kg of steam at 1.0 MPa and 400°C. The location of the stops corresponds to 60 percent of the initial volume. Now the steam is cooled. Determine the compression work if the final state is (a) 1.0 MPa and 250°C and (b) 500 kPa. (c) Also determine the temperature at the final state in part (b).
A surveyor is going to take a 5.5 mile sight across a lake from the top of one tower to a target on the top of another tower. It is desired to keep the line of sight 6 ft above the lake surface.
A plane truss has joint loads P, 2P, and 3P at joints D, C and B, respectively where load variable P=23kN. All members have two end plates which are pin-connected to gusset plates.
Looking a wood (pine) deck material. It's a simple 8' by 8' deck. There's a support beam holding up this deck. Other end is connected to building.
Determine the maximum rimpull of the tractor in each of the indicated gears if the efficiency is 92%. If the tractor is operated over a haul road whose slope is +2.5% with rolling resistance of 80 lb/ton
An industry is illegally discharging benzene into a river. The concentration in the river at the point of discharge is 0.2 mg/L. A drinking water treatment plant (DWTP) is located 1.5 km downstream. The water velocity in the river is 0.35 km/day.
1a draw the fbd and the shear and bending moment diagrams for the beam shown in figure i. label all minimums maximums
For the beam show, assume EI = 200,000 kN-m2 and use discontinuity functions to determine - The beam deflection
(a) Derive equations for the shear force V and the bending moment M for segments: AB, AC and AD (Place the origin at point A). (b) Plot the shear-force and bending-moment diagrams for the beam using the derived functions.
Draw the influence line for the shear at point B. Plot numerical values every 5 ft. Assume the support at A is a roller and C is fixed. EI is constant.
Calculate carbonate, noncarbonate, and total hardness Na+ = 27.8 mg/L Cl- = 35.6 mg/L Ca+2 = 48mg/L CO3-2 = 30 mg/L Mg+2 = 12mg/L HCO3- = 61 mg/L K+ = 12 mg/L SO4-2 = 48 mg/L
A 5 ft square, 2 ft. deep spread footing is subjected to a concentric vertical load of 60 k and an overturning moment of 30 ft-k. that acts at a 45 degree angle from the side of the footing
a vertical curve is formed when a rural highway passes under a bridge joining a -8 grade to the horizontal grade
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