Civil Engineering Review

Problem 658 | Beam Deflection by Conjugate Beam Method

Problem 657 | Beam Deflection by Conjugate Beam Method

Problem 657
Determine the midspan value of EIδ for the beam shown in Fig. P-657.

Problem 656 | Beam Deflection by Conjugate Beam Method

Problem 656
Find the value of EIδ at the point of application of the 200 N·m couple in Fig. P-656.

Problem 655 | Beam Deflection by Conjugate Beam Method

Problem 655
Find the value of EIδ under each concentrated load of the beam shown in Fig. P-655.

Problem 654 | Beam Deflection by Conjugate Beam Method

Problem 654
For the beam in Fig. P-654, find the value of EIδ at 2 ft from R₂.

Problem 653 | Beam Deflection by Conjugate Beam Method

Problem 653
Compute the midspan value of EIδ for the beam shown in Fig. P-653. (Hint: Draw the M diagram by parts, starting from midspan toward the ends. Also take advantage of symmetry.

Problem 20 | Bernoulli's Energy Theorem

Problem 20
The 600-mm pipe shown in Figure 4-11 conducts water from reservoir A to a pressure turbine, which discharges through another 600-mm pipe into tailrace B. The loss of head from A to 1 is 5 times the velocity head in the pipe and the loss of head from 2 to B is 0.2 times the velocity head in the pipe. If the discharge is 700 L/s, what power is being given up by the water to the turbine and what are the pressure heads at 1 and 2?

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Problem 19 | Bernoulli's Energy Theorem

Problem 19
A pump draws water from reservoir A and lifts it to reservoir B as shown in Figure 4-10. The loss of head from A to 1 is 3 times the velocity head in the 150-mm pipe and the loss of head from 2 to B is 20 times the velocity head in the 100-mm pipe. Compute the horsepower output of the pump and the pressure heads at 1 and 2 when the discharge is: (a) 12 L/s; (b) 36 L/s.

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Problem 18 | Bernoulli's Energy Theorem

Problem 18
Figure 4-09 shows a siphon discharging oil (sp gr 0.90). The siphon is composed of 3-in. pipe from A to B followed by 4-in. pipe from B to the open discharge at C. The head losses are from 1 to 2, 1.1 ft; from 2 to 3, 0.7 ft; from 3 to 4, 2.5 ft. Compute the discharge, and make table of heads at point 1, 2, 3, and 4.

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Problem 17 | Bernoulli's Energy Theorem

Problem 17
In Figure 4-08 is shown a siphon discharging water from reservoir A into the air at B. Distance 'a' is 1.8 m, 'b' is 6 m, and the diameter is 150 mm throughout. If there is a frictional loss of 1.5 m between A and the summit, and 1.5 m between the summit and B, what is the absolute pressure at the summit in kiloPascal? Also determine the rate of discharge in cubic meter per second and in gallons per minute.

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