When rain falling vertically a gage inclined 10° from the vertical will catch 1.5% less than it should. Assuming rain falling vertically express the catch of a gage inclined 20° from the vertical as a percentage of the catch for the same gage installed vertically.
Solution:
Calculate the friction factor f in the pipe line illustrated in the figure based on the following z1 = 4.5m., P1 = 280 kPa, V1 = 1.2 m/s, z2 =9.3 m., P2 = 200 kPa, V2 = 1.2 m/s. The length of the 600 mmØ pipeline is 1000m.
Solution:
If a 250mm sewer is placed on a slope of 0.010, what is the flowing full quantity when n = 0.013.
Solution:
Two reservoirs A and B are connected by a 200 mmØ pipeline having a length of 2.5 km with a friction factor f = 0.018. If reservoir A is 15m. higher than B, determine the flow inside the pipe. Assume minor losses is 10% of friction loss.
Solution:
A small ingot and platform rest on a steady water jet. If the total weight supported is 825N, what is the jet velocity if the diam. of the jet is 60 mm.
Solution:
Determine the depth of the economical trapezoidal brick lined channel having a discharge of 1.2 m3/s with a slope of 0.008. n = 0.015
Solution:
Determine the depth of the trapezoidal channel with sides inclined 45° with the horizontal to prevent scouring with a maximum velocity of 3 m/s and a flow of 225 m3/s.
Solution:
A mercury flows in the 100mmØ pipe at 20°C, with v = 1.15 x 10-7 m2/s with a flow of 0.8 liters/second. Determine the type of flow.
Solution:
If an object has a mass of 2 slugs at sea level, what would be its mass at a location where the acceleration due to gravity is 30 ft/sec2.
Solution:
The ties for the anchored bulkhead shown are located four feet from the top of the sheet piling and are spaced at fifteen foot centers. The end of the tie is secured to two anchor piles raked as indicated. The active earth pressure maybe assumed equivalent to a fluid pressure of 30 psf per foot and passive pressure maybe assumed equivalent to a fluid pressure of 400 psf per foot. Compute the force in the compression anchor pile C.
Solution:
A pipe 12mmØ with a velocity of 0.5 m/s is attached by a nozzle at the end having a diameter of 3mmØ. Find the velocity of the water at the nozzle.
Solution:
What is the ratio of the total mass to the total volume?
a) Bulk density
b) Dry unit weight
c) Specific gravity
d) Bulk modulus
Answer:
A line along which the potential head at all points are equal in an earth dam.
a) Equipotential line
b) Stream line
c) Seepage
d) Prelatic line
Answer:
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