What gauge pressure has to be applied to the air in the top

Assignment Help Civil Engineering
Reference no: EM13323791

the level of water in a city water tower is 125ft. above the ground. The tank is kept with an air space which can be pressurized with compressed air. It is important to maintain a pressure at the bottom of the tower at 75 psig. What gauge pressure has to be applied to the air in the top of the tower to get the required pressure at the bottom of the tower. If the atmospheric pressure is 755mmHg, what is the absolute pressure at the bottom of the tower. Draw the system and show the pressure gauges.

Reference no: EM13323791

Questions Cloud

Expected rate of return : You invest in a portfolio composed of a risky asset with an expected rate of return of 10% and a standard deviation of 12% and a treasury bill with a rate of return of 6%.
It leveraging business advantage at an operational level : You are to research an actual example of IT leveraging business advantage at an operational level.
What is the molar flow rate of the feed stream to the column : A mixture containing 45 wt% benzene and 55 wt% toluene is fed to a distillation column. An overhead stream of 95 wt% benzene is produced, and 8.0 % of the benzene fed to the column leaves in the bottom stream.
Solve for the equilibrium wage and the quantity of employmen : Assume that the government imposes a $20 minimum wage. Find the new quantity of labor demanded and supplied.
What gauge pressure has to be applied to the air in the top : the level of water in a city water tower is 125ft. above the ground. The tank is kept with an air space which can be pressurized with compressed air. It is important to maintain a pressure at the bottom of the tower at 75 psig.
What is the length of a vector from earth to mercury : The Earth's orbit has a radius of 1.52·1011 m, and that of Mercury has a radius of 6.98·1010 m. What is the length of a vector from Earth to Mercury
Amount you borrowed from the broker : Assume you purchased 600 shares of XYZ common stock on margin at $40 per share from your broker. If the initial margin is 60% and the maintenance margin is 30%, the amount you borrowed from the broker is
How does a real wage above equilibrium cause unemployment : What is an efficiency wage, and how do efficiency wages affect the labor market?
Predicted price change on this bond : You own a bond that has a duration of 7 years. Interest rates are currently 6% but you believe the Fed is about to increase interest rates by 100 basis points. Your predicted price change on this bond is ________.

Reviews

Write a Review

Civil Engineering Questions & Answers

  Stormwater monitoring

Laboratory analysis methodology to be used. Give details on the standard methods, instrument and detection limits. Standard methods for heavy metals analysis exist

  How many 3-4 inch diameter rivets are required to transmit

How many 3:4-inch diameter rivets are required to transmit 55,000 lb from the two angles to the gusset plate if the allowable shear stress in the rivets is 15,000 psi Assume each rivet carries the same amount of load.

  Calculate the final temperature of the air and water

A sealed insulated room contains 90 m^3 air at 12 C and 100 kPa. A container with 45 kg of water at 95 C is placed in the room. After heat transfer between the air and water, thermal equilibrium is reached.

  Determine the soils coefficient of permeability during test

The head difference between manometer levels was 4.9 cm during the test, and the water temperature was 20 degrees celcius. If it took 152 second for 500 ml of water to discharge, determine the soil's coefficient of permeability.

  Determine the maximum allowable compressive force

(a) Determine the desired diameter of the disk. (b) If the rubber strain is not to exceed 0.2 in/in, determine the maximum allowable compressive force. Recall that the spring constant, k=Fx,or in terms of an axially loaded member

  Horizontal motion of plunger and shaft

The horizontal motion of plunger and shaft is arrested by resistance of the attached disk which moves through the oil bath. If the velocity of plunger is v.

  Find difference in mercury levels inside and outside tube

A glass tube with inside diameter of 2-mm is inserted vertically into a dish of mercury at 20°C. Determine the difference in mercury levels inside and outside the tube.

  Dimensions of symmetrical trapezoid plate

The plate is submerged in a liquid is a vertical position with the parallel sides horizontal and the shorter parallel side at the top and exactly in the surface of the liquid.

  Calculate size of an anaerobic digester required to treat

Calculate the size of an anaerobic digester required to treat the sludge from a primary clarifier designed to treat 38,000 m3/d of sewage. The quantity of dry volatile solids removed by the plant is 0.15 kg dry solids/m3 sewage.

  Problem related to specific gravity of solids

A soil specimen has a water content of 18% and a wet unit weight of 118.5 lb/cu. ft. The specific gravity of solids is found to be 2.72. Find the:

  Determine will a booster pump be required for the building

The water pressure in the municipal pipeline is 450 kPa, the sum of the local loss coefficients in the building pipes is 11.0, and the flow to be delivered to the top floor at 25 L/s through a 150-mm diameter PVC pipe.

  What would be average length of queue and waiting time

At a parking lot, vehicles arrive according to a Poisson process and are processed (parking fee collected) at a uniform deterministic rate at a single station. The mean arrival rate is 4 veh/min and the processing rate is 5 veh/min.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd