STRENGTH OF MATERIALS
What commercial size of new cast iron pipe shall be used to carry 4,500 gpm with a lost of head of 11 feet per mile. Assume f= 0.019.
What commercial size of new cast iron pipe shall be used to carry 4,500 gpm with a los…
STRENGTH OF MATERIALS
The head lost in 30 m of 15 cm-diameter pipe is known to be 5 m when a liquid of specific gravity of 0.9 flows at 0.05 m/s. Find the shear stress at the walls of the pipe.
The head lost in 30 m of 15 cm-diameter pipe is known to be 5 m when a liquid of speci…
STRENGTH OF MATERIALS
Fluid flows through a 50-mm-diameter pipe, 200 m long at a Reynolds number of 1,800. Calculate the discharge if the head lost of 180 m.
Fluid flows through a 50-mm-diameter pipe, 200 m long at a Reynolds number of 1,800. C…
STRENGTH OF MATERIALS
A fluid having v=3x10-5 m2/s flows in a 850 m long pipe having a diameter of 25 mm. Determine the head lost required to maintain a velocity of 2 m/s.
A fluid having v=3x10-5 m2/s flows in a 850 m long pipe having a diameter of 25 mm. De…
STRENGTH OF MATERIALS
Water flow at the rate of 300 lps through 150-m horizontal pipe having a...
Water flow at the rate of 300 lps through 150-m horizontal pipe having a diameter of 2…
STRENGTH OF MATERIALS
A fluid flows at 0.002 m3/s through a 200-mm-diameter pipe. Determine wh...A fluid flows at 0.002 m3/s through a 200-mm-diameter pipe. Determine whether the flow is laminar or turbulent if the fluid is (a) hydrogen (v=1.08 x 10-4 m2/s), (b) air (v=1.51 x 10-5 m2/s), (c) gasoline (v=4.06 x 10-7 m2/s), (d) water (v=1.02 x 10-6 m2/s), (e) mercury (v=1.15 x 10-7 m2/s), or (f) glycerin (v=1.18 x 10-3 m2/s).
A fluid flows at 0.002 m3/s through a 200-mm-diameter pipe. Determine whether the flow…
STRENGTH OF MATERIALS
Determine the (a) shear stress at the walls of a 400-mm- diameter pipe when water flowing causes a head lost of 3 m in 100 m pipe length, (b) the shear velocity, and the (c) shear stress at 60 mm from the centerline of the pipe.
Determine the (a) shear stress at the walls of a 400-mm- diameter pipe when water flow…
STRENGTH OF MATERIALS
Oil having a specific gravity of 0.763 and dynamic viscosity of 0.0864 Pa-s flows through a cast iron pipe at a velocity of 2 m/s. The pipe is 60 m long and 100 mm in diameter.(a) Find the head lost due to friction, and (b) Find the shearing stress in Pa at the walls of the pipe.
Oil having a specific gravity of 0.763 and dynamic viscosity of 0.0864 Pa-s flows thro…
STRENGTH OF MATERIALS
For laminar flow conditions, what size of pipe will deliver 5 liters per second of oil having kinematic viscosity of 7.2 x 10-6 m2/s?
For laminar flow conditions, what size of pipe will deliver 5 liters per second of oil…
ECONOMICS
A company produces circuit boards that are used to update computer equipment. The fixed cost is $65,000 per month and the variable cost is $80 per circuit board. The selling price per unit is p=$225-1.5D. Maximum output of the plant is 5,000 units per month. What demand will maximize the profit for this product?
A company produces circuit boards that are used to update computer equipment. The fixe…
ECONOMICS
A manufacturing enterprise has determined that its revenue for product ZED was highest when it could produce 2,500 units of ZED per month. Further, profit was also found to be at a maximum at a production of 2,000 units per month. The company’s monthly fixed cost for making product ZED was $200 and the cost of making 1 unit of ZED was $2.50 per piece. The lower range of the company’s profitable operation (breakeven point) is at 20 units of product ZED. What is the higher limit of producing ZED profitably (the other breakeven point?)
A manufacturing enterprise has determined that its revenue for product ZED was highest…
ECONOMICS
A small manufacturer of a car accessory has fixed costs of $100,000 per year, and its maximum output capacity is 10,000 units per year. The variable cost is $20 per unit and the product sells for $25 per unit. What is the economic breakeven point for the company?
A small manufacturer of a car accessory has fixed costs of $100,000 per year, and its …
ECONOMICS
What annual rate of simple interest is earned by an investment of $30,000 if it accumulates $4,550 in interest after twenty-four months?
What annual rate of simple interest is earned by an investment of $30,000 if it accumu…
ECONOMICS
How long will it take to double your money if it earns a simple interest of 15% per year?
How long will it take to double your money if it earns a simple interest of 15% per ye…
ECONOMICS
What is the value of the interest factor needed to find the equivalent at time 0 of $200,000 occurring 10 years from now when interest rate is 10% per year compounded yearly.
What is the value of the interest factor needed to find the equivalent at time 0 of $2…
ECONOMICS
The value of the interest factor needed to find a series of equal revenues that must be received every year for 10 years to realize a return of 30% from an initial investment of 30 million dollar is ___.
The value of the interest factor needed to find a series of equal revenues that must b…
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