134 Answered Questions for the topic civil engineering
Civil Engineering Architecture
11/30/24
Steel Structures Tension Design (LFRD METHOD AISC)
Tension Forces Calculated previously:USE THE LFRD METHOD
Using the tension forces calculated in the previous step, select a member size for all truss tension Members (One member size that works for...
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Civil Engineering
08/24/24
Soil Mechanics - FE/EIT Civil exam
A 70% saturated soil has a moisture content of 20% and a void ratio of 0.8. Find the specific gravity of the soil.
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Civil Engineering
08/24/24
Production Rate - Construction
A track excavator with bucket capacity of 4 yd3has a standard operating cycle of 45 seconds. What is the daily production rate of the excavator?
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08/07/24
determine: (a) the angular velocity of the gate immediately after the collision, and (b) the maximum angular displacement of the gate, θ (in radians)
A car trying to break into a secure industrial area collides with a spring-loaded “swing away” security gate. The gate can be modeled as a bar with a torsionalspring mounted at the pivot point.The...
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08/07/24
Determine the velocities of each vehicle immediately after the collision. Express these in vector form and calculate their respective magnitudes.
Roundabouts are considered safer than typical cross-street intersectionssince they greatly reduce the possibility of “T-bone” collisions, where one vehicleimpacts another at a right angle,...
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08/07/24
Finding velocity of a free-falling object given a function of time
While a man is repairing an elevator that is at rest, its cablessnap and the elevator begins to free fall at t = 0 seconds. At t = 0.5 seconds,the emergency braking system automatically engages....
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Civil Engineering
05/18/24
CIVIL ENGINEERING
A stormwater bioinfiltration system receives water from a residential area (area 10,000 m2 ; runoff coefficient C = 0.8). Your consulting firm is asked to design the biofilter to treat a 85...
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Civil Engineering
03/25/24
Flexture design strength
The cross section of a beam is reinforced with 1.8 in^2 of steel. The depth of the neutral axis of the section at ultimate moment is 3.40 in. The width b (round to the nearest inch) of the beam...
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Civil Engineering
03/25/24
Maximum Tensile Strength
Given a concrete beam (b = 10 in.; h = 25 in.) with flexural reinforcement at the bottom, the transformedmoment of inertia is It=14,740 in^4, and the location of the neutral axis from top of the...
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01/11/24
Ladder Related Rates
A 30 ft ladder is leaning against the side of a building. You pull the base of the ladder away from the wall of the building at a rate of 9 in/sec.At what rate is the height of the ladder above the...
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Civil Engineering
12/14/23
Engineering Questions
(a) After using a heater for 1 h in a room or well-mixed 27 m3 chamber with an air exchange rate of 0.39 ach, the nitrogen monoxide (NO) concentration reached 4.7 ppm or 5.7 mg m-3 . Assume that NO...
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Civil Engineering
12/14/23
Environmental Engineering Questions
(1) Benzene is accidentally spilled in a soil block with 100 m length, 50 m width, and 1 m deep and you found the concentration in pore water is 10 mg/L. What is the amount of benzene (g) present...
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Civil Engineering
11/30/23
Hydraulics- rectangular open channel characteristics NEED HELP PLEASE
Water flowing through a rectangular channel experiences a hydraulic jump. The initial depth is 0.43m and the flow per unit width is 5.3 m2/s. Compute:1. The sequent depthmy un-checked answer Ys=3.4...
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Civil Engineering
11/17/23
Determine the required cross sectional areas
Determine the required cross-sectional areas of members AB and AD of the given truss shown, if the allowable stress in tension is 120MPa while in compression is 105MPa. A reduced allowable stress...
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10/21/23
Strength of materials tangenial stress question
A steel tank has a height of 10 m and a diameter of 5 m. If the tangential stress in the tank measures 80 MPa if it is full of water, determine the approximate thickness of the tank.
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06/23/23
Thermodynamics 1
A piston/cylinder assembly contains 0.1 kg R-410A of quality x = 0.25 and at −20°C. The piston is initially free-floating. Stops are mounted so that the volume at the stops is three times greater...
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05/29/23
Ordinary Annuity
Nicole bought a car with the cash value of P15,294 on the installment plan under the following terms: P4,312 cash upon delivery and the balance payable in 12 equal monthly payments. Assuming money...
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05/08/23
Engr. Reyes invested an equal amount to two different investments today.
Engr. Reyes invested an equal amount to two different investments today. At the end of 8 years, he will receive an amount in his first investment twice than the second. If the first investment...
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04/26/23
A man borrowed an amount of P150,600 to bank that offers an interest rate of 5.36% compounded continuously and has a maturity date of 6 years.
A man borrowed an amount of P150,600 to bank that offers an interest rate of 5.36% compounded continuously and has a maturity date of 6 years. He plans to pay the loan at an amount of P15,800 at...
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04/26/23
A series of cash flows are established on an account as listed below:
A series of cash flows are established on an account as listed below:
Payment of P375 at the end of the 2nd, 5th, and 7th year at an interest rate of 9% compounded semi-annually.
Payment of P220 at...
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04/26/23
On the day his grandson was born, a man deposited to a trust company a sufficient amount of money so that the boy could receive five annual payments of P10,000 each for his college tuition fees
On the day his grandson was born, a man deposited to a trust company a sufficient amount of money so that the boy could receive five annual payments of P10,000 each for his college tuition fees,...
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04/26/23
On the day his son was born, a father deposited to a trust company a sufficient amount of money so that his son could receive money in the future.
On the day his son was born, a father deposited to a trust company a sufficient amount of money so that his son could receive money in the future. There was a provision that the son can withdraw an...
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Evaluate the following iterated integral using cylindrical coordinates.
Evaluate the following iterated integral using cylindrical coordinates.∫-44 ∫0√16-x^2 ∫0y y dz dy dx
What is the angular misclosure for a five-sided polygon traverse with observed exterior angles of 252° 26’ 39”, 255° 55’ 15”, 277° 15’ 55”, 266° 35’ 03”, and 207° 47’ 07”?
What is the angular misclosure for a five-sided polygon traverse with observed exterior angles of 252°26’ 39”, 255° 55’ 15”, 277° 15’ 55”, 266° 35’ 03”, and 207° 47’ 07”?
Civil Engineering Math
04/13/23
Convert: (a) 215° 46’ 48” to grads (b) 320.0648 grads to degrees, minutes, and seconds (c) 151° 18’ 45” to radians.
Convert:(a) 215° 46’ 48” to grads (b) 320.0648 grads to degrees, minutes, and seconds(c) 151° 18’ 45” to radians.
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