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A three-phase, 600-kVA, 2300:230-V, Y-Y transformer bank has an iron loss of 4400 W and a full load copper loss of 7600 W. Find the efficiency of the transformer for 70% full load at 230 V and 0.85 power factor.
Question - 22 25 tons of caustic solution having 10 % concentration was fed to an evaporator . the concentrated liquor leaving the evaporator contains 50% NaOH , 2 % Nacl and 48 % H2O .
Determine the reactive kVA of the motor, and the overall power factor of the motor and the load.
During the research that led to production of the two atomic bombs used against Japan in World War II, different mechanisms for obtaining a supercritical mass of fissionable material were investigated.
Develop a series of design graphs that can be used to demonstrate acceptable combinations of tubes dimensions
Example introduced a heat exchange system revamp problem. If the plate heat exchanger E101 in Figure 2.19 is the gasketed-plate type, then the exchanger area can be increased by adding plates to the exchanger. How much additional area must be adde..
Assuming that the maximum-speed condition determines the machine size, and neglecting exciting current, losses, and voltage drops in the induction machine,
List the formulas of three soluble bromide salts and three insoluble bromide salts. Do the same exercise for sulfate salts, hydroxide salts, and phosphate salts (list three soluble salts and three insoluble salts).
Calculate the mass of the liquid (the difference between the total mass of the graduated cylinder plus the liquid and the mass of the empty graduated cylinder).
Rebecca believed that Stogy would be able to hire experienced cigar rollers whose output would be somewhere around 200 cigars a day, depending on the cigar's size and shape as well as on the roller's skill.
How would the answer change if the combustion were only 75% complete?
What is the nature of the process fluid and what are the objectives of the two sample points and in what way do the samples reaching the instruments differ?
What acid and what strong base would react in aqueous solution to produce the following salts in the formula equation? Write the balanced formula equation for each reaction.
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