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Topic :: Formula
PROCESS DESIGN - EXAMPLE 21.2 : The names of the flow streams could be represented by : H1 for first hot stream, H2 for second hot stream, C1 for first cold stream, C2 for second cold stream. Data of supply temperature Ts in degree Celsius : 150 for H1, 170 for H2, 30 for C1, 30 for C2. Data of target temperature Tt in degree Celsius : 50 for H1, 169 for H2, 150 for C1, 40 for C2. Data of heat capacity Cp in kW / degree Celsius : 3 for H1, 360 for H2, 3 for C1, 30 for C2. (a) Find the enthalpy changes, dH for all streams of flow H1, H2, C1 and C2 in the unit of kW. Take note of the formula dH = (Cp) (Tt - Ts). (b) Match the hot streams H1 and H2 with the suitable cold streams C1 and C2 to achieve the maximum energy efficiency.
1 2429ENVIRONMENTAL ENGINEERING - QUESTION 22.2 : Biochemical Oxygen Demand (BOD) could be calculated using the formula BOD = (DOi - DOf) (Vb / Vs) where Vb = Volume of bottle in ml, Vs = Volume of sample in ml, DOi = Initial dissolved oxygen in mg / L, DOf = Final dissolved oxygen in mg / L. (a) By using a bottle of Vb = 300 ml with sample Vs = 30 ml, find the BOD if DOi = 8.8 mg / L and DOf = 5.9 mg / L. (b) By using a bottle Vb = 600 mL with sample Vs = 100 mL, find the BOD if DOi = 8.8 mg / L and DOf = 4.2 mg / L. (c) Find the average BOD = [ Answer of (a) + Answer of (b) ] / 2. (d) If the BOD-5 test for (a) - (c) is run on a secondary effluent using a nitrification inhibitor, find the nitrogenous BOD (NBOD) = TBOD - CBOD. Let TBOD = 45 mg / L and CBOD = Answer of (c).
1 3097ENVIRONMENTAL ENGINEERING - QUESTION 22.3 : A well delivers 225 US-gallons per minute of water to a chemical plant during normal system operation. (a) Calculate its flowrate in the unit of mega US-gallon per day or MGD. (b) The following formula is written next to the chlorine feed point : (chlorine feed rate, lb / day) = (flowrate, MGD) X (dose, mg / L) x (8.34). If this formula is correct, then what should the chlorine feed rate to be in pounds per day (lb / day) if the desired dose is 2 mg / L. (c) Prove by calculations that the constant 8.34 in the formula next to the chlorine feed point is correct. Let 1 US-gallon = 3.78541 L and 1 mg = 0.0000022046 pound.
1 2191FOOD ENGINEERING - QUESTION 23.2 : (a) A dryer reduces the moisture content of 100 kg of a potato product from 80 % to 10 % moisture. Find the mass of the water removed in such drying process. (b) During the drying process, the air is cooled from 80 °C to 71 °C in passing through the dryer. If the latent heat of vaporization corresponding to a saturation temperature of 71 °C is 2331 kJ / kg for water, find the heat energy required to evaporate the water only. (c) Assume potato enters at 24 °C, which is also the ambient air temperature, and leaves at the same temperature as the exit air. The specific heat of potato is 3.43 kJ / (kg °C). Find the minimum heat energy required to raise the temperature of the potatoes. (d) 250 kg of steam at 70 kPa gauge is used to heat 49,800 cubic metre of air to 80 °C, and the air is cooled to 71 °C in passing through the dryer. If the latent heat of steam at 70 kPa gauge is 2283 kJ / kg, find the heat energy in steam. (e) Calculate the efficiency of the dryer based heat input and output, in drying air. Use the formula (Ti - To) / (Ti - Ta) where Ti is the inlet (high) air temperature into the dryer, To is the outlet air temperature from the dryer, and Ta is the ambient air temperature.
1 2810POLYMER ENGINEERING - QUESTION 24.1 : The molecular weights M in kg / mol of 3 different monomers a, b and c in a polymer are Ma = 14, Mb = 16 and Mc = 18. The fraction of polymer chain X of 3 different monomers a, b and c in a polymer are Xa = 0.5, Xb = 0.3 and Xc = 0.2. (i) Calculate number average molecular weight by using the formula Ma Xa + Mb Xb + Mc Xc. (ii) Calculate weight average molecular weight by using the formula (Ma Xa Ma + Mb Xb Mb + Mc Xc Mc) / (Ma Xa + Mb Xb + Mc Xc). (iii) Calculate the polydispersity by using the answer in (ii) divided by answer in (i). (iv) If the molecular weight of repeat unit is 12, calculate the degree of polymerization by using the formula (Ma Xa + Mb Xb + Mc Xc) / (molecular weight of repeat unit).
1 2564POLYMER ENGINEERING - QUESTION 24.3 : The molecular weights M in kg / mol of 3 different monomers a, b and c in a polymer are Ma = 14, Mb = 16 and Mc = 18, with their respective quantities in N units having the ratio of Na : Nb : Nc = 2 : 3 : 5. (a) Find the numerical average molecular weight of the polymer by using the formula (Ma Na + Mb Nb + Mc Nc) / (Na + Nb + Nc). (b) Find the weighted average molecular weight of the polymer by using the formula (Ma Na Ma + Mb Nb Mb + Mc Nc Mc) / (Ma Na + Mb Nb + Mc Nc). (c) Calculate the polydispersity Q by using the answer in (b) divided by answer in (a). (d) Find the volumetric average molecular weight of the polymer by using the formula (Ma Na Ma Ma + Mb Nb Mb Mb + Mc Nc Mc Mc) / (Ma Na Ma + Mb Nb Mb + Mc Nc Mc). (e) Estimate the polydispersity Q by using the answer in (d) divided by answer in (b).
1 2262PETROLEUM ENGINEERING - QUESTION 25.2 : (a) The American Petroleum Institute gravity, or API gravity, is a measure of how heavy or light a petroleum liquid is compared to water. Let SG = specific gravity of petroleum liquid, and V = barrels of crude oil per metric ton. Given the formula for API gravity = 141.5 / SG - 131.5 and V = (API gravity + 131.5) / (141.5 x 0.159), find the relationship of SG as a function of V. (b) An oil barrel is about 159 litres. If a cylinder with diameter d = 50 cm and height h = 50 cm is used to contain the oil, find the volume V of the cylinder in the unit of oil barrel by using the formula V = 3.142 x d x h x d / 4. (c) First reference : 1 cubic metre = 6.2898 oil barrels. Second reference : 1 cubic metre = 6.37 oil barrels. What are the 2 factors that cause the difference in such reference data?
1 2855Write down a formula to calculate the number of 50Kg bags of cement for moulding of cement blocks of tcm thick by 20cm high by 40cm long on site with a mix ratio of 1 bag of cement to 3 wheelbarrows of sand . the sand is measured at a STRUCK( WATER LEVEL) 65 litres capacity wheelbarrow. TEL: +237 674630019
1 2553MICROBIOLOGICAL ENGINEERING - QUESTION 28.1 : In the calculation of the growth of bacteria, colony forming unit (CFU) in serial dilution is used. In a laboratory, viable count assay is used to estimate CFU. Formula applied is CFU / mL = (number of colonies x dilution) / (amount plated, in unit mL). Acceptable plate count is either between 20 and 200 or between 30 and 300 according to 2 different references. A wastewater sample of 200 ml is added to and mixed with 1.8 L of sterile water. Another 200 ml of the mixture is added to and mixed with 1.8 L of sterile water. (a) Calculate the dilution of first mixture and the dilution of the second mixture. (b) 100 microlitres of wastewater samples from the first mixture and the second mixture are placed separately on 2 different alga plates. The first plate has 250 colonies and the second plate has 23 colonies. Calculate the average CFU / mL.
1 2286MICROBIOLOGICAL ENGINEERING - QUESTION 28.2 : A hemocytometer is a device that is used for counting cells. In an engineering experiment, 100 microlitres of cell suspension is diluted with 50 microlitres of Trypan blue dye. Only death cells appear blue in color when stained with the dye. There are 57 cells detected in a hemocytometer, where 5.3 % of them appear blue when the chamber of the meter is placed under a microscope. Each square of a chamber can contain 0.0001 mL of liquid. (a) Calculate the number of viable cells. (b) The cells occupied 5 squares. Calculate the average number of viable cells / square. (c) Calculate the dilution factor of the cell suspension by using the formula : Dilution = final volume / initial volume. (d) Calculate the concentration of viable cells / mL by using the formula : Concentration = (Average number of viable cells / square) x dilution x (square / volume).
1 2467BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.2 : (a) In order to determine the slurry volume (L) in chromatography, arrange the formula using the following parameters : slurry concentration (%), slurry volume (L), settled chromatography medium volume (L), 100. (b) In order to determine the chromatography medium volume (L) in gel filtration chromatography, arrange the formula using the following parameters : sample volume to be processed (L), chromatography medium volume (L), sample volume in percent of total column volume (%), 100.
1 2026BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.4 : The resolution of separation, Rs for chromatography is given by the formula Rs = (difference in retention time) / (average width at the base). In a chromatogram, 3 peaks a, b and c are found. Average widths W at the bases of the solutes are : Wa = 20 s, Wb = 40 s, Wc = 30 s. Resolutions of separation, Rs for solutes b and c in comparison to a are 2 and 4 respectively. The differences in retention times T for b and c in comparison to a are (Tb - Ta) and (Tc - Ta), Ta = Tc - Tb : (a) Form 2 equations involving Rs as a function of Wa, Wb, Wc, Ta, Tb and Tc. (b) Find the values of Ta, Tb and Tc.
1 2277BIOCHEMICAL ENGINEERING INSTRUMENTATION - EXAMPLE 29.5 : The following formula is used as a reference : (analyte signal) / (internal standard signal) = (f-factor) x (concentration of analyte) / (concentration of internal standard). A solution containing 3 mM of analyte and 4 mM of internal standard gave peak signals of 2 and 3 mamps respectively. Another similar solution containing 2 mM of analyte and 1 mM of internal standard gave peak signals of 1 and 4 mamps respectively. Find the average f-factor.
1 2097
What is the Formula of osmolarity calculation ?
Write a flora formula for a flower which has a variable number of sepals, 8 petals united at the base, 8 stamens united by their anthers, and an inferior ovary of 4 united carpels.
Can a formula column referred to columns in higher group ?
Can a formula column be obtained through a select statement ?
What is the structural formula of molybdenum blue?
When we r doing data driven test with chkpts, i want to insert formulae in data sheet but i didn't get. How we wil do that plz. explain in detail.
Perform the following tasks using MS-EXCEL: FUEL ESTIMATES COMPUTATIONS: This project is to compute the fuel needed for two types of airplanes, and the cost of the fuel. You must do all computations using formula, and do a chart. Use Page Setup to make the left margin 0.5 and the right margin 0.5 also. Put your name in the Title line, after "Fuel Estimates". Note the following: ? Col. D - H: You must enter correct formulas under Columns D through H (Flying Fuel, Reserve Fuel, Holding Fuel, Total Fuel Needed and Estimated Fuel Cost)!! Read and compute carefully! ? Cells C12, C13, C14, H13 or H14: When you use these cells in a formula, you must make them absolute cell references (F4 key after your type the cell reference, or enter the $ sign manually) ? Graph/Chart: Select cells A3:B8 (Plane and Flight). Hold down the "Control" key and select D3:D8. Hold down the "Control" key and select G3:G8. Create a chart (Insert- Chart, Finish) and position it in a pleasing way under the data for the flight. Print it on one sheet, in landscape mode. ? Print again, but with Formulae: There are two ways to show formulas: 1) Enter Control+` (the key with the ~ at the top left) or 2) Tools-Options, and under "Window Options" put a check mark beside "Formulas", then close the window.
If P is the population on the first day of the year, B is the birth rate, and D is the death rate, the estimated population at the end of the year is given by the formula: The population growth rate is given by the formula: B – D Write a program that prompts the user to enter the starting population, birth and death rates, and n, the number of years. The program should then calculate and print the estimated population after n years. Your program must have at least the following functions: 1. growthRate: This function takes its parameters the birth and death rates, and it returns the population growth rate. 2. estimatedPopulation: This function takes its parameters the current population, population growth rate, and n, the number of years. It returns the estimated population after n years Your program should not accept a negative birth rate, negative death rate, or a population less than 2. please answer my question ....
Q. 4 (a) To modify an, existing worksheet. What steps are involved for: 1. Inserting and deleting rows and columns. 2. Printing cell formulas 3Jld displayed values 3. Using the page setup command
To modify an, existing worksheet. What steps are involved for: 1. Inserting and deleting rows and columns. 2. Printing cell formulas 3Jld displayed values 3. Using the page setup command
1 Tarot 1.1 Purpose - Tarot tool will duplicate the tarot-reading process for the user online. - Tarot is a craft that uses a deck of 78 cards to predict a user’s past, present and future. - The cards are picked by the user and arranged in a specific spread, which represents points in his past, present, and future; based on the meanings of the cards selected, interpretations are given. 1.2 Scope Only for registered user. 1.3 User Interface User Interface: 1. Question – This is only for user experience, and has no bearing on the formulae / process. Simple long text box. 2. Selection of field – radio button selection of 1 of 3 choices(Love, Career, Personal), which affects 1 of 3 card- meaning databases to be used. After selection, the unselected databases do not affect or interact with the system. 3. Spread Selection – radio button selection of 1 of 3 choices(Celtic Cross, Horse Shoe, Simple 3 Card). This determines the number of cards being picked and the specific spread database to be used. This also affects the specific report format being used, as well as the card- selection GUI. 4. Card Selection – based on the input 3, a specific layout is shown where the user needs to identify X number of cards (X also determined by input 3) which are then shown in the spread. Every card selection identifies the spread position constants (A, B, C, etc) with specific variable values (Card numbers) creating an array. Report format will display on a separate new page, in the following sequence – - Statement of question asked - Selection of field - Selection of spread - Detailed description of position data, positions identified as per spread selection - Card meaning as picked in field selection 1.4.5 Interfacing/Sourcing Details 1.4.5 Rules and Conditions - Data needs to be calculated for all fields, but only a maximum of 3 cards data should be shown in the free report. For the rest, a payment would be required. - Payment reports not in phase 1 - The report needs to be emailable (so functionality to convert to text file / html document should exist, which will then be emailed to the user’s email address).
alignment formulae for any two shafts for shim correction
In any consulting firm, the time devoted doesn't matter. all that matters is the productivity. What kind of HR and leave policy will you formulate to ensure discipline and time line working along with the increased productivity?
Is it possible to calculate a voltage for microwave energy generating in oven? Is there any formula relating frequency and voltage and it should be independent of speed?
WHAT ARE 19 MODELS OF EDUCATIONAL COUNSELLING? What is the most essentila thing that you consider while formulating any HR policy? In any consulting firm, the time devoted doesn't matter. all that matters is the productivity. What kind of HR and leave policy will you formulate to ensure discipline and time line working along with the increased productivity what is databank in recruitment process why u choose MBA after sicence bacground in graduation what is patent rights and copy rights what is the difference between direct investment and FDI what is the difference between direct investment and FDI what is the difference between patent rights and copy rights what is quality of work life What is KRA and KPI? Wat is recruitment & How is the Recruitment Scenario in todays global market? what is meant by managerial grid why did u select HR as your carrier what is sensex and nifty,what is the difference between those two what is the difference between CEO,MD,PRESIDENT,CHAIRMAN why do u select to do MBA in HR after doing B.Sc in physics? what is the performance management and what are the methods to use in evaluating performance? What is Learning? Please do make a reply to this question: I am bored taking interviews. Please motivate me in taking interview of yours. Trade Unions? what is sensex and nifty,what is the difference between those two What are Incentives? What is Fringe Benefits? What is Employee Morale? what are your positives and negatives as a HR? What is the best way to develop pay systems that are understandable, workable, and acceptable to employees at all levels? What is Coordination? What is the Difference between salary and wage? what is ur great weekness what is the importance of hr in the life of business? What is wages? What are the key issues that should be addressed in the design, conduct, and evaluation of training programs? where u see yourself after 10 years As jobs become more team-oriented, assessment centers will be used more often for non-management jobs. Do you agree or disagree? What is HRD? What did you like in your previous job? What is Fringe Benefits? What are the latest employee evalution trends? What is the Difference between salary and wage? why do u select to do MBA in HR after doing B.Sc in physics? What is HCN?s? what is the importance of hr in the life of business? How much do you think we should pay you?Do you know how much other companies are paying? What is the best way to develop pay systems that are understandable, Workable, and acceptable to employees at all levels? Difference between Training and Development? What is Different between Recruitment and Selection What is "mutual gains negotiation"? Selection means? Trade Unions? what is 360 degree performance appraisal? what is meant by an organisation,explain me differently What is On the Job Training? Management Guru,Professor Lallus Rail , a book was written by? What is Workers Compensation? why should i select you? Roles and Responsibilities of a HR ? How much do you think we should pay you?Do you know how much other companies are paying? In a room there are 3bulbs, and in the net room there are 3 switches. one can not see through the rooms, then how can you know that which switch is for which bulb with out taking any one's help? Define Motivation? What are the key issues that should be addressed in the design, conduct, and evaluation of training programs? What is "mutual gains negotiation"? what is Persoanl Management? What is HRM? What are Incentives?
