# Problem 11 - Bernoulli's Energy Theorem

**Problem 11**

A horizontal pipe carries 30 cfs of water. At A the diameter is 18 in. and the pressure is 10 psi. At B the diameter is 36 in. and the pressure is 10.9 psi. Determine the head lost between the two points.

# Problem 10 - Bernoulli's Energy Theorem

# Problem 09 - Bernoulli's Energy Theorem

# Problem 08 - Bernoulli's Energy Theorem

# Problem 07 - Bernoulli's Energy Theorem

# Problem 06 - Bernoulli's Energy Theorem

**Problem 6**

As shown in Figure 4-03, the smaller pipe is cut off a short distance past the reducer so that the jet springs free into the air. Compute the pressure at 1 if Q = 5 cfs of water. D_{1} = 12 inches and D_{2} = 4 inches. Assume that the jet has the diameter D_{2}, that the pressure in the jet is atmospheric and that the loss of head from point 1 to point 2 is 5 ft of water.

# Problem 05 - Bernoulli's Energy Theorem

# Problem 04 - Bernoulli's Energy Theorem

# Problem 03 - Bernoulli's Energy Theorem

**Problem 3**

A 300-mm pipe is connected by a reducer to a 100-mm pipe. See Figure 4-02. Points 1 and 2 are at the same elevation, the pressure at 1 is 200 kPa. The discharge Q is 30 liters per second flowing from 1 to 2 and the energy lost from 1 to 2 is equivalent to 20 kPa.

- Compute the pressure at 2 if the liquid is water.
- Compute the pressure at 2 if the liquid is oil (sp gr = 0.80).
- Compute the pressure at 2 if the liquid is molasses (sp gr = 1.5).