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what is power factor ? how we can calculate the low power factor and amount of capacitor for improve that low factor ?
1081Question 64 – According to a heuristic of chemical engineering plant design, assume a pressure difference dP = 4 psi for each 10-ft rise in elevation. A pump is needed to pump liquid from a storage tank at a lower elevation to a heating tank at a higher elevation with the elevation difference of 60 ft. (a) Find the pressure loss due to such elevation. (b) If the required minimum inlet pressure to the heating tank is 9 psi, with 1 control valve is installed between pump and heating tank, what is the dP minimum required for the control valve and the entrance to the heating tank when the heuristic mentions that at least 10 psi is required for the control valve? (c) The pressure at the inlet of the pump is 8 psi and the flowrate of the liquid produces pressure head of 50 psi. What is the total pressure produced by the pump? (d) Assume a pipeline dP of 2 psi / 100 ft for liquid flow in a pipe according to heuristic, what is the approximate maximum length of the pipe in ft that can be installed between the pump and the heating tank?
1 1938which material is suitable for punching press to avoid scratches amd waear of metal hittimg the blades?
1194750kva 11/415kv transformer having percentage impedence is5.64%. 11KV HV whose current 39.37A and 415V LV whose current 1043.43A.resistance is 2.5ohm. find no load loss and full load loss?
2 2216I have 30 kw motor load & i have selected 10 kvar capacitor bank for power factor improvement.my existing p.f is 0.85 & proposed p.f is 0.99 so ,is it right selection? 2 nd question how to connect c.bank whether in delta or star connection & how to decide it?
1 2166if my load is not in continuous operation so what type of panel is required APFC or fixed capacitor bank without APFC whether C.T is required in both cases compulsory? explain detail
1 1753
I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR
Specific Heat of Bagasse at 50% moisture, 40% moisture and 25% moisture?
If the Brush of DC motor is shifted by 90 deg, then what happens to voltage and torque? Both voltage and torque are zero. how to justify the answer?
Do closed loops systems require manual input?
Name the device which converts sound energy into mechanical energy?
Explain about different types of lamps?
why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain
Explain Chickan works
plz send me the website of dmrc for previous questions papers
What is the composition of cast grade iron 35?
Question regarding property of Critical Path?
Hi...........i want to know the pattern for written test for the post of Jr.Executive(Electronics) in AAI(Airports Authority Of India).Kindly send me the same.My email id Is zeenaz.786@gmail.com.
why current flow to the opposite direction of flow of electrons???????????
How do i carry out or know the vector group of a Dyn1 and Dyn5 transformer
What is PQA???Applications........
