A lorry is carrying 4000 liters of water. It is driven from Kota Kinabalu to Mesilau and it was discovered that the tank was only half full on arrival. The driver started with a full tank, climbed at a steady rate, and accomplished the 1000 meters elevation change in 3 hours. If the water leaked at a steady rate, compute how much work was spent to carry water to the top? Do not count the work done by the driver and the lorry to get there. Water weighs 9,8 N/liter.

A lorry is carrying 4000 liters of water. It is driven from Kota Kinabalu to Mesilau and it was discovered that the tank was only half full on arrival. The driver started with a full tank, climbed at a steady rate, and accomplished the 1000 meters elevation change in 3 hours. If the water leaked at a steady rate, compute how much work was spent to carry water to the top? Do not count the work done by the driver and the lorry to get there. Water weighs 9,8 N/liter.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Water flows from a hose that is connected to a main pipe that is at 400 kPa gauge pressure. A child places his thumb to cover most of the outlet of thehose, and makes a thin stream of water come out at high speed. If the hose is held up, how high could the jet go?
A large container filled with water and uncovered for use in fighting fires in an ethylene production plant. Water from this tank is pumped into the nozzle when needed use. This fire suppression system is designed to be able to transmit 1890 L/min of water at a pressure of 15 bar (relative pressure). If we ignore the difference in height between the water level in the tank and pump, there is no change in diameter of pipe and nozzle, pump efficiency is 70%. Ask how much work (hp) is required to the pump to achieve the desired pressure and flow would like?
A pumping station wet well operates between 540- and 550-ft elevation. The pump curve is deϐined by the following points: 80 ft at zero ϐlow, 78 ft at 200 gpm, 65 ft at 800 gpm, and 50 ft at 1200 gpm. The pump discharge contains an equivalent of 50 ft of 6-in. pipe. The discharge pipe is 120-ft long and terminates at a splitter box, elevation 570. Using C=100, plot the pump curve and the corrected pump curve. Plot the pump discharge curves at each wet well elevation and for C=100 and C=140. What is the pump ϐlow at the low and high wet well elevations for newand old pipe?
A pump that has the characteristic curve shown in the accompanying graph is to be installed as shown. What will be thedischarge of water in the system?
In a liquid transmission pipeline, a pump had been designed for a throughput of 10,000 bpd. However, the demand has increased by 25%. It has been proposed to increase the impeller diameter and speed in order to meet the new demand. However, the impeller diameter increase is limited to 10%. The original speed of the pump is 1200 RPM and the original power is 60 kW. Calculate: a) The new speed of the pump. b) The new shaft power of the pump. The new shaft power of the pump.
At the Manapouri hydroelectric station on the South Island of New Zealand, water from Lake Manapouri drops through 230 meters before being discharged to the sea at Doubtful Sound. The maximum flow rate of water through the plant is 510 cubic meters per second. 1 cubic meter of water has a weight of 1,000 kg. Calculate the maximum amount of power that could be generated at Manapouri. (You can refer to the class handout, the textbook Section 2.2 or the slides for the necessary energy and power conversions). Group of answer choices A. 3.2 TW B. 3500 Watts C.120 MW D. 1.2 GW E. 350 MW
Pumps: A centrifugal pump having 4 stages in parallel, delivers 18 kiloliters/min of liquid against a head of 25 m. The diameter of the impellers being 24 cm and the speed of 1800 rpm. A pump is to be made up with a number of stages in series of similar construction to that of the first pump to run at 1250 rpm and to deliver 15 kiloliters/min against a totalhead of 250 m. Find the diameter of the impellers and the number of stages required in this case. Answer: D = 46.63 cm, n = 6 stages
Subject: Fluid mechanics Give me right solution according to the question.. Compute the power required to operate and the efficiency of a pump which raises 9,200 gallons of water per minute through a height of 128.0 ft., when the loss of head in the pump and pipe amounts to 14 ft.
A pump takes water at 60°F from a large reservoir and delivers it to the bottom of an open elevated tank 25 ft above the reservoir surface through a 3 inch ID pipe. The inlet to the pump is located 10 ft below the water surface, and the water level in the tank is constant at 160 ft above the reservoir surface. The pump delivers 150 gal/min. If the total loss of energy due to friction in the piping system is 35 ft·lbf/lb, Calculate the horsepower required to do the pumping. The pump and its motor have an overall efficiency of 55 %. i. Determine the velocity of the water at point 2 in ft/s. ii. Assuming that the large open reservoir is open to the atmosphere as well, which of the following equations best describes the mechanical energy balance for the system? iii.The Reynolds number for the flow is?
A pump takes water at 60°F from a large reservoir and delivers it to the bottom of an open elevated tank 25 ft above the reservoir surface through a 3 inch ID pipe. The inlet to the pump is located 10 ft below the water surface, and the water level in the tank is constant at 160 ft above the reservoir surface. The pump delivers 150 gal/min. If the total loss of energy due to friction in the piping system is 35 ft·lbf/lb, Calculate the horsepower required to do the pumping. The pump and its motor have an overall efficiency of 55 %. i. What is Delta Z (Z2 - Z1) ? in ft. ii. Determine the theoretical shaft work required in foot-pound force per pound mass.. iii.Determine the actual shaft work needed for this particular mass flow rate in (ft-lbf)/s.
A pump is driven by an electric motor moves 35 gal/min of water from reservoir A to reservoir B, lifting the water to a total head of 245 ft. The efficiency of the pump and motor are 64% and 84% respectively. What size of motor (HP) is required? a. 3 hp b. 5 hp c. 4 hp d. 7 hp
Suppose the pump of Fig. is situated between two large water tanks with their free surfaces open to the atmosphere. Explain qualitatively what would happen to the pump performance curve if a valve in the piping system were changed from 100 percent open to 50 percent open, all else being equal. Repeat for the system curve. What would happen to the operating point—would the volume flow rate at the operating point decrease, increase, or remain the same? Indicate the change on a qualitative plot of H versus V. , and discuss.