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A single-phase, 3-kVA, 220:110-V, 60-Hz transformer has a high-voltage winding resistance of 0.3 Ω, a low-voltage winding resistance of 0.06 Ω, a leakage reactance of 0.8 Ω on its high voltage side, and a leakage reactance of 0.2 Ω on its low-voltage side. The core loss at rated voltage is 45 W, and the copper loss at rated load is 100 W. Neglect the exciting current of the transformer. Find the per-unit voltage regulation when the transformer is supplying full load at 110 V and 0.9 lagging power factor.
what are the 95 percent precision limits for total flow, and the 95 percent confidence interval for total flow?
50. Methanol is synthesized from carbon monoxide and hydrogen in a catalytic reactor. The fresh feed to the process contains 32.0 mole% CO, 64.0% H2, and 4.0% N2. This stream is mixed with a recycle stream in a ratio S mol recycle/1 mol fresh feed to..
Should the lease-and-flood arrangement be accepted? How should this proposal be presented to the company board of directors who understand and make it a policy to evaluate by discounted-cash-flow rate of return?
A problem similar to it will be on the exam. He kind of went over it, but the whole class was struggling a more in depth/intuitive walkthrough of this problem.
The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to decay events per second (the number of decay events from 1 g of radium in 1 s).
Two aqueous sulfuric acid solutions containing 20.0 wt% H2SO4 (SG = 1.139) and 60.0 wt% H2SO4 (SG = 1.498) are mixed to form a 4.00 molar solution (SG = 1.213).
The heat capacity of thereactants and products are 1.95 kJ/kg-K, the volumetric flow rate is 0.33 m3/hr, and the feedtemperature is 20oC. If the conversion is 95%, calculate (a) the reactor size and (b) the temperature of the reaction mixture, ift..
Aim To understand the fundamentals of chemical bonding and ionic equilibrium and its application in engineering problems.
HEAT TRANSFER PROBLEMS NO16- Water flowing in a steel pipe of diameter 0.02 m is to be cooled from 40 to 30 oc . The velocity of water in the steel pipe is 1.5 m/s .
It will dissolve, however, in aqua regia, a mixture of the two concentrated acids. The products of the reaction are the AuCl46- ion and gaseous NO. Write a balanced equation for the dissolution of gold in aqua regia.
using the concept of a mass balance describe how environmental engineers and scientists model the carbon cycle in the
Make a list of the risks to society from the use of each type of power plant. With this knowledge, which type of radioactive decay has the net effect of changing a neutron into a proton? Which type of decay has the net effect of turning a proton i..
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