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- Aluminum pieces inadvertently collect on the filter. a. If left on the filter, will the percent yield of the alum be reported as too high or as too low? Explain. b. If the aluminum pieces are detected on the filter, what steps would be used to remedy the observation? Explain.Q2: Determine the resultant about the point O of the four forces and one couple which act on the plate shown in the Figure below. Note : for the resutant of 3osihys Forc es, You should computy the magnitude Kdirechion 30N 5 m- 3 ocos4s 25N 2 m 70 N-m 20N 40N o 30(a) (ii) Following chemical species were reported for water sample from a well. Concentration (milli equivalent)/L 15 15 05 30 12 18 8.8 Species Chloride (CL) Sulphate (SO2-) Carbonate (CO2) Bicarbonte (HCO3) Calcium (Ca²+) Magnesium (Mg2+) pH Find (i) The total hardness (in mg/L) as CaCO3 (ii) Alkalinity present in the water (in mg/L) as CaCO3.
- The nutural frequancy for the system is equal to k rigid uniform bar of mass (m) P b L 1 3kb2+PL 1 3kb2 mL? 2n The answer is O The Answer is 3kb²–3PL 2n V None of All mL? The Answer is O the answer is 3kb2+3PL mL? 1 the Answer isChose the correct answer 1- The Unit measurement of suspended solids is ...A- kg 2- The Unit measurement of Turbidity is A- °C is B-m B-NTU C- mg/L C-K 3- The Unit measurement of pH www A-mg/L 4- The Unit measurement of alkalinity is .. 5-Non toxic metals includes 6-Dissolved materials size is lees than A- 10 mm D- none of above D- none of above D- none of above B- p.p.m C- g/m³ D- none of above A- m/sec B- m³/sec C- mg/L A-Chromium B- Mercury C- Calcium D- none of above B- 106, C-108 mm D- none of above mm 7- Public standards of Hardness in drinking water is A-500 mg/L B-50 mg/L C-100 mg/L D- none of above 8- Alkalinity species includes are A-HCO3 B-CO3 C- OH D-All of above ... 9- Dental cavities in children can prevented when Drinking water has Fluoride concentration of A- 0.1 mg/L B- 1 mg/L C- 10 mg/L D- none of above 10- Toxic metals are metals that harmful to humans even when exists in concentration of .. A- Small B-Large C-zero D- none of aboveSolve( b) part only in 2 hour plz solve this perfectly this id mecahnical emgeering question so plz don't reject it.
- (Lala) A Glycerin has a Mass(M)= 945 Kg. And a Volume (V)= 0.750 M3.---The Specific Weight.8 :is )1 نقطة(1 Question 14 of 15 -15 Compute the combined moment of the two 70-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 8.3 in., b = 3.9 in., F = 70 lb. y I F Answers: 10:5 29°C Mostly cloudy Type here to search 04/06 D 1080 1 O EI % 3' & * 8 !!! ENG1. A commercial laundry is consdiering constucing an ion exchange process to remove hardness from water used in laundering oerpations. The laundry uses 1000 m³/d of city water with Ca²+ at 4.5 meq/L and Mg²* at 2 meq/L. Their goal is to reduce total hardness (TH) to 1 meq/L. The softening resin has a TH capacity of 60 kg-TH/m³ of media with a recommended hydraulic loading rate of 0.4 m³/(m² min). Renegeration can be accomplihsed using 100 kg NaCl per m³ of ion exchange media in a 15% solution at a hydraulic loading rate of 0.04 m³/(m² min). The exchanger tanks available to the laundrey have a diamter of 1 m. What is the total bypass-water flow rate (m³/d)? What is the total daily resin volume required to soften the water (m³/d)? How many exchanger tanks are required for a one-day operation cycle? What is the resin bed depth (m) in each exchanger tank? What is the daily volume of NaCl regenation solution used per tank (m³/d)? What is the time period required for resin regeneration in…
- 6-39 The following data were collected from a 10.16 mm-diameter test specimen of polyvinyl chloride (lo = 50.8 mm): Load (kN) Al (mm) 0.00000 1.334 0.1895 2.668 0.38 4.003 0.603 5.34 0.813 6.67 1.168 7.38 1.778 (maximum load) 7.12 2.388 6.316 3.048 (fracture) After fracture, the total length was 53.086 mm and the diameter was 9.982 mm. Plot the engineering stress strain curve and calculate (a) the 0.2% offset yield strength; (b) the tensile strength; (c) the modulus of elasticity; (d) the % elongation; (e) the % reduction in area; (f) the engineering stress at fracture; and (g) the modulus of resilience.1. A commercial laundry is consdiering constucing an ion exchange process to remove hardness from water used in laundering oerpations. The laundry uses 1000 m/d of city water with Ca2+ at 4.5 meq/L and Mg2* at 2 meq/L. Their goal is to reduce total hardness (TH) to 1 meq/L. The softening resin has a TH capacity of 60 kg-TH/m of media with a recommended hydraulic loading rate of 0.4 m/(m2 min). Renegeration can be accomplihsed using 100 kg NaCl per m of ion exchange media in a 15% solution at a hydraulic loading rate of 0.04 m/(m² min). The exchanger tanks available to the laundrey have a diamter of 1 m. 1. What is the total bypass-water flow rate (m/d)? 2. What is the total daily resin volume required to soften the water (m³/d)? 3. How many exchanger tanks are required for a one-day operation cycle? 4. What is the resin bed depth (m) in each exchanger tank? 5. What is the daily volume of NaCl regenation solution used per tank (m/d)? 6. What is the time period required for resin…i need clear ans and solve very very fast in 20 min and thank you | DYBALA When mixing with water, the calcium silicates react with water molecules to form ----and Calcium silicate hydrate and calcium hydroxide. Calcium silicate hydrate and Ettringite. Calcium silicate hydrate and Portlandite. Calcium aluminate hydrate and calcium hydroxide.