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WebAssign Homework Only for Moaveni's Engineering Fundamentals: An Introduction to Engineering, SI Edition, 6th Edition, [Instant Access]
6th Edition
ISBN: 9780357126677
Author: MOAVENI
Publisher: Cengage Learning US
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Chapter 8, Problem 56P
To determine
Show that 355 billion gallons of water consumed per day is equal to 397,000 acre-feet per year.
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Lake Mead near Hoover Dam in Nevada is the largest manmade lake in the U.S. It contains 28,537,000 acre-ft of water when filled to capacity. (An acre-ft is the amount of water that covers 1 acre to a depth of 1 ft). Express Lake Mead's water volume in gallons and m3.
What is the cost to pump 1000 liters of water to the top of a 30 m high water tank? Assume a pumping efficiency of 50% and an electrical cost of $0.15 per KW-h. P(h2O) = 1000 ?g/m^3 . 1 m^3 = 1000 liters
Thirty (30) liters/second of stream water must be pumped up a vertical height of 12 meters to irrigate a farm. If head loss in casing and pump results in 62% pump efficiency and the electric motor used has 91% efficiency, what horsepower rating should the motor have and how many kilowatts will it use while pumping?
GIVEN:
q=30 l/s 0r 108 cu.m/hr
h=12 m
ME=91%
PE=62%
density of water =997 kg/cu.m
Chapter 8 Solutions
WebAssign Homework Only for Moaveni's Engineering Fundamentals: An Introduction to Engineering, SI Edition, 6th Edition, [Instant Access]
Ch. 8.2 - Prob. 1BYGCh. 8.2 - Prob. 2BYGCh. 8.2 - Prob. 3BYGCh. 8.2 - Prob. 4BYGCh. 8.2 - Prob. BYGVCh. 8.4 - Prob. 1BYGCh. 8.4 - Prob. 2BYGCh. 8.4 - Prob. 3BYGCh. 8.4 - Prob. BYGVCh. 8.5 - Prob. 1BYG
Ch. 8.5 - Prob. 2BYGCh. 8.5 - Prob. 3BYGCh. 8.5 - Prob. 4BYGCh. 8.5 - Prob. BYGVCh. 8 - Prob. 1PCh. 8 - Prob. 3PCh. 8 - Prob. 4PCh. 8 - Prob. 9PCh. 8 - Prob. 10PCh. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - Prob. 14PCh. 8 - Prob. 15PCh. 8 - Prob. 17PCh. 8 - Prob. 18PCh. 8 - Prob. 19PCh. 8 - Prob. 20PCh. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - Prob. 23PCh. 8 - Prob. 24PCh. 8 - Prob. 25PCh. 8 - Prob. 26PCh. 8 - Prob. 27PCh. 8 - Prob. 28PCh. 8 - Prob. 29PCh. 8 - Prob. 30PCh. 8 - Prob. 31PCh. 8 - Prob. 32PCh. 8 - Prob. 33PCh. 8 - Prob. 34PCh. 8 - Prob. 35PCh. 8 - Prob. 36PCh. 8 - Prob. 37PCh. 8 - Prob. 38PCh. 8 - Prob. 39PCh. 8 - Prob. 40PCh. 8 - Prob. 41PCh. 8 - Prob. 42PCh. 8 - Prob. 43PCh. 8 - Prob. 44PCh. 8 - Prob. 45PCh. 8 - Prob. 46PCh. 8 - Prob. 47PCh. 8 - Prob. 48PCh. 8 - Prob. 49PCh. 8 - Prob. 50PCh. 8 - Prob. 51PCh. 8 - Prob. 52PCh. 8 - Prob. 53PCh. 8 - Prob. 54PCh. 8 - Prob. 55PCh. 8 - Prob. 56PCh. 8 - Prob. 57PCh. 8 - Prob. 58PCh. 8 - Prob. 59P
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- The volume of water in large scale reservoirs is often measured in units of an acre-foot, which is the amount of water covering one acre of surface to a depth of one foot. An acre-foot is equivalent to 43,560 ft³. A particular water tower in town was constructed to hold 3.75 acre-feet of water. What is the volume of water in liters that the water tower will hold? ( 1 US liquid gallon = 231 cubic inches, 3.785 liters = 1 US liquid gallon)arrow_forwardinformation Convert the quantities into the corresponding Sl units 4.183E7 U.S. gallons per day. m/sarrow_forwardThe total water supply of the world is about 326 million cubic miles. Express this supply in: 1.Acre-ft 2. Cubic kilometers 3. Kilimetersmeters 4. Liters 5. Tonsarrow_forward
- Water Budget Problem: Residential Water Usage You are tasked with calculating a water budget for a residential household over the course of a month. The household consists of two adults, two children, and a small garden. The water usage will include indoor activities such as bathing, cooking, and cleaning, as well as outdoor activities like watering the garden. Given Information: • Average water consumption per person per day for indoor activities: 100 liters • Average water consumption for outdoor garden watering per day: 50 liters • Water meter reading at the beginning of the month: 150,000 liters • Water meter reading at the end of the month: 151,500 liters Assumptions: • The month has 30 days. • There is no leakage or wastage of water. • Water used for other purposes (e.g., car washing, swimming pool) is negligible and can be ignored. Question: What is the total water usage over one month? O 11500 litters O 15000 liters O 14250 litters O 13500 litersarrow_forwardQ3: Calculate the quantity of water in a reservoir in the following units: (a): : (b): m: (c): liter: (d): gallon. The acre-foot unit is used. The area of the reservoir is equivalent to the area of 3 acres, and it has a depth of 6 fl.arrow_forward(d) In a town, it has been decided to provide water @ 200 litres per head per day in the 21st century. Estimate the domestic water requirement of this town in the year 2000 by projecting the population of the town by incrimental increase method. Year 1940 1950 1960 1970 1980 Population 23798624 46978325 54786437 63467823 69077421arrow_forward
- The tank contains 7,425 lb of water. If the pump attached to the tank removes 1.65 gal/min of water, how long will it take to empty the tank?arrow_forwardA sylo can contain 3.75*10^4 lb of liquid. The volume of water it would take is 552.885 ft3 if the weight of liquid contained by the sylo is 1,575,000 lb, what is the weight density of the fluid?arrow_forwardcalculate the volume of the water in ft3.arrow_forward
- QUESTION 7 Calculate the flowrate of water passing through a pump in which the power is 22.1 kW, the change in head is 81.7 m and the efficiency is 79%. Please give your answer in l/s to 3 significant figures.arrow_forwardCan I get an answer please?arrow_forwardQuestion 2/10 The water supply for the city is pumped to a distribution reservoir. The pumping rate is 400 m3 per 4 hours. The estimated water requirements every 4 hours is shown below. What is the required reservoir capacity? 400 m3 Hour 0400 0800 1200 1600 2000 2400 700 m3 500 m3 600 m3 What is the maximum requirement from the reservoir? 600 m3 O 500 m3 300 m3 400 m3 200 m3 300 m3 At 0800 hours, the reservoir contains 600 cu. m, how much water is in the reservoir at 2000 hours? 150 m3 Demand 300 600 800 500 350 200 Jay 250 m3arrow_forward
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