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Design the formwork for an 8-in.-thick reinforced concrete floor slab. Use 3/4-in. class II plyform and No. 2 grade Douglas fir-larch for the other lumber. Use 2 × 8 joists and double 2 × 8 stringers. Use 4 × 4 shores with an unsupported height of 10 ft. Assume that the slab will be 120 ft × 120 ft in plan. Use guy wire bracing (at 45° to the 10-ft height) that has a tensile capacity of 4400 lb.
The bracket plate is 25 mm thick. All rivets are to be of the same size. Load on the bracket, P = 50 kN ; rivet spacing, C = 100 mm; load arm, e = 400 mm. Permissible shear stress is 65 MPa and crushing stress is 120 MPa. Determine the size of the ri..
compute the required diameter for a solid circular shaft if it is transmitting a maximum of 110hp at a speed of 560
a motor delivers 240 w through the drive shaft to a paddle wheel that agitates liquid water in a closed insulated tank
data from service records shows that the time to repair a certain machine is normally distributed with a mean of 50
What is the metal removal rate when a 1.5-in.-diameter hole, 2 in. deep, is drilled in 1020 steel at a cutting speed of 200 fpm with a feed of 0.010 ipr? What is the cutting time
A rigid tank contains water vapor at 200 degrees celcius and unknown pressure. When the tank is cooled to 150 degrees celcius, the vapor starts condensing. Estimate the initial pressure in the tank.
there are two machines available for cutting corks intended for use in wine bottles. the first produces corks with
Superimpose a uniform ?ow parallel to the x-axis of 10 m=s and a source at the origin of strength q ¼ 10p m2/s. (a) Write the velocity potential f and stream function c.
a vehicle traveling at 30 mph enters a 600 ft radius curve and begins to increase its speed at a rate of 10 fts2. find
steam at 2 kg s enters a turbine at 6000 kpa and 600 c and exits as saturated vapor at 20 kpa. the turbine produces
An enclosure contains an array of circuit boards, 15 cm high and 20 cm long. The clearance between the tips of the components on the PCB and the back surface of the adjacent PCB is 0.3 cm. Each circuit board contains 75 square chips on one side, each..
Calculate the appropriate speed (in RPM) and table feed rate (in inches per minute) for face milling 1212 steel (Hb 125) with a 3 inch diameter, 8 tooth, coated carbide cutter. The part is only 2 inches across (this is relevant for selecting the radi..
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