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1.What is the formula to find how many gals./ min. would dicharge from a 2 inch dia. hole at 5PSI (with a constant water supply and no friction involved)? Would the same formula apply to any size hole ( ex. 1/2" or 3")?
2.To find the flowrate you have to draw the system curve to find the intersection. How do you find the system curve?
3.A room having a total heat gain of 35,000 btuh is to be maintained at 80 DB and 62 WB. the air is supplied to the room at 60 DB and 55 WB. find the quanity of air to be supplied.
1690 cfm
1500 cfm
1850 sfm
1900 sfm
4.Find the cooling load (in tons of refrigeration) for a room supplied with 10,000 CFM of 95 DB outside air with ratio of 105 gr/lb. The room is to be maintained at 78 DB and humidity ratio of 71.5 gr/lb. The room calculated sensible heat load is 108,000 BTUH and latent load of 30,000 BTUH
34.8 tons
46.3 tons
38.5 tons
73.4 tons
5.The total heat loss from a building equals the heat load or the amount of heat that must be put into the building by the heating system to offset the losses and maintain the proposed comfort zone. The total building heat loss is calculated from losses by which of the following?
A. Conduction
B. Convection
C. Radiation
D. All of the above
The water content in one of five standard Proctor test samples is 15.2%. The corresponding degree of saturation is 85%. Calculate the dry unit weight if Gs=2.67
A chemical mixing basin is to be designed to blend chlorine and treated wastewater. The basin flow is 700 gallons per minute and the basin dimensions are 5 feet by 5 feet by 5 feet water depth.
Base course aggregate has a target dry density of 119.7 lb/cu ft in place. It will be laid down and compacted in a rectangular street repair area of 2000 ft x 48 ft x 6 in. The aggregate in the stockpile contains 3.1 percent moisture.
an equal-tangent sag vertical curve is designed with the PVC AT STation 109 + 00 and elevation 950 ft, the PVI at station 110 + 77 and elevation 947.34ft,and the low point at station 110 + 50 . Determine the design speed of the curve.
The moduli of elasticity of plain concrete and steal are 25 GPa and 207GPa respectively, and the corss-sectionial area of steel is 2% of that of the reinforced concrete.
Write a program that uses menu to select a type of figure (triangle, sqaure, pentagon, hexagon, heptagon, octagon), and then use switch-case to determine the value of n.
How much annual income would be need to be generated over a 5 year period to be equivalent to $4,000 over an 8 year period. Consider 6% nominal interest (compounded annually) for both cases.
A car is traveling along a road at a uniform velocity when at time zero the driver recognizes a hazard. At a moment 0.8 seconds later the driver brakes her vehicle , resulting in her vehicle sliding 90 ft in the same direction
Moment of inertia of an I-beam with two different flange widths about the beam's centroidal axis As shown, an I-beam has a bottom flange that is150mm x30mm , a web that is 30mm x 150mm, and top flange 75mm x 30mm that is
Calcium sulfate (CaSO4, solubility product Ksp=2*10^-5 M^2), is added to initially pure water, such that solid CaSO4 remains at equilibrium. (Assume the sulfate does not participate in reaction other than the solubility product; no HSO4- formed).
A barometer filed with non-toxic glycerin is used to measure standard sea level atmospheric pressure. neglecting the effect vapor pressure and surface tension. calculate the atmospheric pressure head.
The casting has a mass of 3 Mg. Suspended in a vertical position and initially at rest, it is given an upward speed of V mm/s in 0.3s using a crane hook H. Determine the tension in cables AC and AB during this time interval if the acceleration is ..
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