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You have been tasked to design a large water tank that has the following characteristics: 1) open to the atmosphere at the top, 2) an inlet pipe is located near the top, 3) an outlet pipe is located near the bottom, which leads to a pump, and 3) a drain hole is provided at the bottom. The drain hole is a simple open hole that allows water to flow out into a ditch when the drain valve is open. The purpose of the drain hole is to prevent the water tank from overflowing when the inflow from the inlet pipe is greater than the outflow through the outlet pipe. If the design conditions are a steady inflow that is larger than the steady outflow to the pump, derive an equation that allows you to compute the diameter of the drain hole for a desired steady water height in the tank for the design condition inflow and pumping rates.
An industrial building has floor area of 5 m by 8 m and is 3 m high with a door 1 m wide and 2 m high. Leakage of transformer oil from a pump occurs and is ignited. What is the maximum area of spill in (m^2) if flashover is to be avoided.
The tongs shown are designed for lifting blocks of ice. If the weight of the ice block is W, find the horizontal force between the tongs and the ice block at C and D.
What would be the load carrying capacity of a 250 mm-diameter and 15 m-long timber pile driven into soft clay with an unconfined compressive strength of 40 Kpa? What percentage of the total load is carried by the shaft?
CPM Construction plans to buy a truck for $150,000 and sell it for $15,000 at the end of 5 years. The annual operating cost of the vehicle is $60,000. What is the present value of the truck
A 10 storey building measures 20m x 40m in plan and has columnslocated on a grid 10m x 10m. The floor consists of a 250mm thick R/C slab with droppanels 3m x 3m x 200mm thick in the vicinity of each column. Live load allowanceis 3.0kPa.
If the critical point in a DO sag curve is found to be 18km downstream from the discharge point of untreated wastewater, would you expect the critical point to move upstream (toward the discharge point)
how many kilograms each of pearlite and preutectoid phase form? schematically sketch and label the resulting microstructure
Disregarding frictional losses, determine the highest rate of heat transfer to the air in the duct without affecting the inlet conditions.
A concrete mix with a 3-inch slump, w/c ratio of .50, and sand with a finesse modulus of 2.4 contains 1700 lb/yd^3 of coarse aggregate per cubic yard. To adjust the mix so as to increase the compressive strenght
At the design flow, it is intended to have a relative depth of 0.8. At what minimum slope can it be laid such that the velocity is at least 2 ft/s at design flow and depositied solids will be scoured out by the deisgn flow
A 100-ft steel tape of cross-sectional area of 0.0020 in2, weight 2.4 lb, and standardized at 68Fo is 100.008 ft between end marks when supported throughout under a 15-lb pull. What is the true horizontal length of a recorded distance AB for the cond..
The camera focal length was 152.4 mm and the flying height above datum 7500 ft.
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