4. Find the angle of surface tension film leaves the glass for a vertical tube immersed un water if the diameter is 0.25 in and the capillary rise is 0.08 in. Use surface tension = 0.005 lb/ft. A. 64.3 degrees B. 62.4 degrees C. 32.2 degrees D. 67.5 degrees

Calculate Deflection Angles

0.5 in. | 105 in. A 2 ft The A-36 steel bar shown in the figure is constrained to just fit between two fixed supports when T1=60°F. If the temperature is raised to T1=120°F, determine the average normal thermal stress developed in the bar. B

4. A 375.00 ft. line is to staked-out with a steel tape (fully supported) inside a warehouse. The tape is to be pulled at 10 lb. The tape is known to be 100.012 ft. long when pulled at 25 lb at 68 degrees F. The tape weighs 1 lb. The cross-sectional area of the tape is 0.0030 sq. in. The elastic modulus is 29,000,000 psi. The temperature inside the warehouse is 68 degrees. What distance on the tape must be used to stake the line?

Water flows in a steel pipe (e = 0.00020 feet) at a flow Q = 12.5 cfs. The diameter of the pipe is D = 18 inches and the length of the pipe is L = 2,500 feet between section 1 and section 2. The elevation at section 1 is z = 100 feet above the datum. The elevation at section 2 is z2 = 75 feet above the datum. The temperature of the water is 70°F. The kinematic viscosity of the water is 1.06 x 10° ft/s. The pressure at section 1 is p1 = 90 psig (pounds per square inch gage). a) Determine the velocity v in feet per second (fps). b) Determine the Reynolds number Re. c) Classify the flow based on the Reynolds number Re. d) Determine the Darcy-Weisbach friction factor f. e) Determine the friction head loss hfäic in feet in the pipe between section 1 and section 2. f) Determine the pressure p2 in psiq at section 2.

Determine whether the block shown is in equilibrium and find the magnitude and direction of the friction force when 0=35° and P = 200 N. 800 N Hs = 0.20 Hk= 0.15 25° Previous