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A concrete beam that is simply supported sustains a uniform live load of 1.8 kips/ft and a uniform dead load (not including self weight) of 1 kips/ft on a span of 24 ft. Determine the layout for a s
The effective angle of friction (phi) was found to be 26 degrees for a normally consolidated soil. If the soil is tested in consolidated drained triaxial test under sigma3 = 60 kPa, what would be th
Runoff from a storm flows into a reservoir with a surface area of 20.0 ha at a constant rate. The reservoir level is observed to rise at 1 mm per minute when water is being released through the dam
a belt sander is being brought up to operating speed at the instant of the belt is rotating in the clockwise direction ar 4 ft/s and acceleration at 40 ft/s. the tensioning cylinders A and B have a
determine the stations and elevations of the PVCs, PVIs and PVTs of the two vertical curves required to connect the highway segments, as well as the length of the constant grade section (connecting
design a horizontal curve for a two lane road. The road has 12 ft. lanes. Due to expensive excavation, it was determined that a maximum of 34 ft. can be cleared from the roads centerline towards the
A civil engineering student contends that 60 mph is safe in a van because of the higher drivers line of site. If all other design inputs are standard, what must the drivers eye height be in the van
A normally consolidated clay layer is 4 m thick (one way drainage). From the application of a given pressure, the total anticipated primary consolidation settlement will be 80mm. What is the average
a. Use algebra and linearity of the expectation operator to find the answer. b. Explain how the transformation affects the drawing of the scatterplot we used to develop our understanding of covarian
Assume the settling tank behaves like an ideal sedimentation tank, what percentage of removal should be expected for particles with a settling velocity of 0.002 m/sec
A hot-rolled 7-mm-diameter steel rod is axially loaded at room Temp under a fully reversed cyclic loading. under the rotating beam test, the endurance limit for this steel is 470 MPA, under static l
After injecting 50 MMSCF (14.7 psia and 60 oF), the pressure increase from 2500 to 3500 psia. Deviation factors for the gas are 0.90 at 3500 and 0.80 at 2500 psia and the bottom-hole temperature is
why is wood more common in residential construction in the US and concrete more common in commercial construction
We are analysing energy efficiency of four different cars, A (3.2 miles/kwh), B (42 mpg using Clean Diesel), C (22 mpg using corn based ethanol E85), and D (28 mpg using regular gasoline). Now accou
One can lease a car for $550 per month with no down payment or purchase one for $20,000 now. If the nominal interest rate is 8% per year, how many months of use necessary for the two to break even
Determine the maximum hoop stresses on the inside fibers of a rifle barrel which is 3 feet long with an O.D. = 3.0" and an I.D. = 1.0". The internal pressure = 10,000 psi. Use the F.E. reference man
A coin is tossed and a single 6-sided die is rolled. Find the probability of landing on the head side of the coin and rolling a 3 on the die.
suppose there are 10 pieces of paper in a hat. Each piece of paper has a digit 1 through 10 written on it. Each number is written only once. You reach in the hat and select a piece of paper. What is
A customer randomly select 2 of 10 books to purchase. How many combinations of 2 books can be selected
A sag vertical curve along an existing vertical alignment begins at station 23+45 and ends at station 30+25. The initial grade coming into the curve is -2% and the grade out is +5%. What is the fini
A trapezoidal channel of bottom width 25ft and side slope 1:2.5 carries a discharge of 450cfs with a normal depth of 3.5 ft. The elevations at the beginning and end of the channel are 685 and 650 ft
A rectangular channel is 25ft wide and has a flow of 500 cfs at a velocity of 5ft/s. (a) Determine the specifc energy of water in the channel. (b) What is the criticl depth of water in the channel (
A level is set up midway between two wood stakes that are about 300 feet apart. The rod reading on Stake A is 9.65 ft and the reading on stake B is 4.23 ft. The level is then set up 6 feet in front
The Earth's surface creates a boundary layer in the atmosphere. The velocity profile near the surface can be expressed as a power law, u = a * y n, where the constants a and n depend on the roughnes
The spillway for a dam is 20 m wide and is designed to carry 125 m3/s at flood stage. A 1:15 ratio model is constructed to study the flow characteristics through the spillway. The effects of surface