One person decided to work a 10-hour work shift and had an exposure reading of total dust of 15 mg/cubic meter.   What is the adjusted PEL?

9:51 AM O O Ve E talll 66 Tutorial-2.pdf Department of Civil Engineering Jamia Millia Islamia New Delhi CE-505: Soil Mechanics Tutorial-2 By Prof. S. M. Abbas A permeable soil layer is underlain by an impervious layer, as shown in Fig. 1. Q. 1. A Grndwatle feme sarlare With k = 5.3x10- m/sec for the permeable the rate of seepage through it in m'/hr/m width if H - 3 = layer, calculate of pge and a - 8". Ompenie layer emeable layer Q. 2. Find the flow rate in m'/sec/m length (at right angles to the cross section shown) through the permeable soil layer shown in Fig. 2 given H- 8 m, Hị- 3 m, h - 4 m, L- 50 m, a - 8", and k - 0.08 cm/sec. Fig. 1 Q. 3. Refer to Fig. 3. For a constant- head permeability test in a sand, the following are given: L-300mn, A-175cm, h=-500mm, Water collected in 3 min - €20 cm, void ratio of sand - 0.58. (a). Determine Fig. 2 Hydraulic conductivity, k (cm/sec), (b). Seepage velocity. lpervi lew e Q. 4. For a falling-head permeability given: test, the following are…

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2,13. Determine the suspcnded solids and the percent volatule matter in a sohds sample based on the following data: Sample size - 25 mL. Tare mass of filter 1.5325g Tare mass of filter plus retained solids-1.5415 g. Tare mass of filter plus retained ash-1.5378g

A single-story home with infiltration rate of 0.5 ach has 200 m2 of floor space and a total volume of 500m3. If 0.6 pCi/m2-s of radon is emitted from the soil and enters the house, estimate the steady-state indoor radon concentration. Picocurie is a common unit for radon measurement, use Table 7.14 as necessary. Report answers in pCi/L.

What diameter would a circular clarifier have to be to remove 50 μm particles with 75% efficiency from a 4 MGD (million gallon per day) flow?  Assume the particle specific gravity is 1.5 and the temperature is 10°C.  Answer: 18 m

For a permeability test, what most likely will be the temperature correction for a permeability test conducted at 22C? Round off to three decimal places.