Determine the discharge in MLD of a 2800 mm gravity flow concrete aqueduct 4km long with a head loss of 5.6m. Assume pipe is flowing just full with roughness coeff. of 0.015.
Solution:
A H2O tank with 3 mØ is filled with H2O. The H2O level is 2.30 m above a nozzle. What is the velocity of H2O coming out of the nozzle? Neglect losses
Solution:
Determine the magnitude of the force on the inclined gate 1.5m. by 0.5m. shown in the figure. The tank is completely closed and the pressure gage at the bottom of the tank reads 90000 N/m2. Use 9800 N/m3 for H2O.
Solution:
A drainage canal in the shape of trapezoidal with bottom width of 2.5m and side slopes of 1 horizontal to 1.5 vertical, carries H2O at a depth of 3m. Find the discharge in m3/s using the chezy’s Formula. S = 0.0009, n = 0.615.
Solution:
An aeration basin with a vol. of 400 m3 contains a mixed liquor (aerating activated sludge) with a suspended solids concentration of 2000 milligrams per liter. How many kg of mixed liquor suspended solids are in the tank.
Solution:
A pipe 60cm. in length is connected at the end by a nozzle and the total energy produce in the nozzle is 250m. Compute the velocity of the jet.
Solution:
A drainage canal in the shape of trapezoidal with a bottom width of 2.5m. side slopes 1:1 carries water at a depth of 3m. Find the velocity using chezy’s formula, S = 0.0009, n = 0.015
Solution:
Determine the discharge in MLD of a 2800 mm gravity flow concrete aqueduct with a hydraulic gradient of 0.0015. Assume pipe is flowing full with coefficient of roughness = 0.015
Solution:
A rectangular channel 1 meter in width carries water of 3 m3/s at a depth of 0.6 m. Determine the type of flow.
Solution:
Precipitation station x was inoperative for part of a month during which a storm occurred. The respective storm totals at three surrounding stations A, B and C were 98.80 and 110mm. The normal annual precipitation amounts at stations x A, B and C are respectively, 880, 1008, 842 and 1080mm. Estimate the storm precipitation for station x.
Solution:
Find the discharge of a Cipolleti weir if it has a length equal to 1.67m. and the head of weir is one fifth of its length.
Solution:
A trapezoidal flume of most efficient proportion has a base width of 1.5m. Its full discharge is 3 m3.s. If the same material were used for a most efficient rectangular section. What is the discharge of the new section?
Solution:
A block of wood (s = 0.65) is 20 mm thick is floating in sea water (s = 1.03). Find the area of a block of wood which will just support a man weighing 80kg when the top surface is just at the water surface.
Solution:
A spillway controls reservoir 4 hectares in area. The permanent crest is at elevation 40m. the length of the spillway crest is at elevation 40 m. the length of the spillway is 35.20ft. initially the level of H2O is at elev. 41.8 m. After 25 minutes H2O goes down at a certain level. What is the final elevation.
Solution:
An open vessel 3m. in diameter contains water at a depth of 3.05m and 0,91 m of oil (S = 0.8) the tank is accelerated upward at 3 m/s2. Find the pressure at the bottom.
Solution:
A device attached at the end of the pipe with a cover use for cleaning.
a) clean out
b) man hole
c) culvert
d) none
Answer:
Fluid particles move in a straight line along a smooth pipe. The factor that causes coeff. of friction. .
a) viscous shear
b) density of liquid
c) pressure head
d) froude number
Answer:
A circular pipe 2m. in diameter carries water at a depth of ¾ of its diameter. What is the hydraulic radius?
Solution:
Tow pipes with the same friction factor and length are parallel. If the first pipe has twice the diameter of the second, what must be the ratio of their flow?
Solution:
An open vessel 30cm. in diameter and 90cm high is filled with water to a depth of 45 cm. Find the magnitude of the velocity such that the vortex is just at the bottom.
Solution:
A rectangular weir was installed to control the flow. If the flow is set at 3cu.m/s, Cd = 0.6 and the length is 0.8m., what must the height be?
Solution:
A rectangular weir was installed to control the flow. If the flow is set at 3cu.m/s, Cd = 0.6 and the length is 2m., what must the height be?
Solution:
Water has velocity of 4 m/s through a 40 cm pipe. The discharge through the pipe is:
Solution:
For adiabatic conditions
a) pv = constant
b) pvk = constant
c) pvn = constant
d) none of these
Answer:
A drainage line 1.4 km long is designed base on a storm on a 6 ha. Property which produced 40 mm per hour assuming a velocity flow of 0.8 m/s. With a runoff coefficient of C = 0.5. what peak discharge can be expected from the area.
Solution:
Determine the drag on a torpedo with area 0.01 sq.m. moving horizontally at 80 m/s and Cd = 0.5.
Solution:
Determine the discharge over a suppressed rectangular weir has L = 4 m. and H = 1.2m, and Cw = 0.62.
Solution:
A type of dam having a smallest cross-section.
a) Buttress Dam
b) Arch Dam
c) Gravity Dam
d) Rock Dam
Answer:
A 12cm.diameter solid cylinder of height 8 cm. weighing 0.5kg is immersed in liquid with density 800 kg/cm contained in a tall metal cylinder having a diameter 15cm, Before immersion the liquid was 8cm. deep. How deep is it submerged?
Solution:
A gate slanted 60 degree from the horizontal with width = 1.6m and height = 2.4m is submerged by a depth of 1.8m., determine the pressure at the top of the gate.
Solution:
A process at which no heat is added to or taken away from the flow system.
a) Isothermal
b) Isentropic
c) Adiabitic
d) Isotropic
Answer:
A pressure gauge at elevation 6m. at the side of a tank containing a liquid reads 90 KPa. Another gauge at elevation 4m. reads 110 KPa. What is the density?
Solution:
A 12cm. diameter solid cylinder of height 8cm. weighing 0.5 kg is immersed in liquid with density 800 kg/cm contained in a tall metal cylinder having a diameter 15cm. Before immersion the liquid was 8cm. deep. What is the volume of liquids displaced?
Solution:
A pressure gauge at elevation 6m. at the side of a tank containing a liquid reads 90 kPa. Another gauge at elevation 4m. reads 110 kPa. Compute for the specific weight.
Solution:
Water has a velocity of 4 m/s through 40 cm pipe. The discharge through the pipe is:
Solution:
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