Effectiveness of solar water heating?

Effectiveness of solar water heating?
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This all depends on what part of the US you live in. In the Southwest you shouldn't have a problem as sunlight is abundant. However, in places like Washington, you would need to buy a much more expensive style in order for it to work. They can be great, but it all depends on loaction and size of your house.
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Description : The 'dielectric constant' is a numerical value indicating the effectiveness of a dielectric material in comparison to that of a standard, which is _______________. A. paper or cloth B. glass or mica C. plastic or Teflon D. dry air or a vacuum

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Description : What you mean by organizational effectiveness?

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Description : A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is (A) 0.50 (B) 0.58 (C) 0.68 (D) 0.62

Last Answer : (A) 0.50

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Description : increasing the capacity of a screen __________ the screen effectiveness. (A) Decreases (B) Increases (C) Does not effect (D) None of these

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Last Answer : (A) Screening becomes progressively more difficult

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Description : With increase in the capacity of screens, the screen effectiveness (A) Remains unchanged (B) Increases (C) Decreases (D) Decreases exponentially

Last Answer : (C) Decreases

Pick out the wrong statement pertaining to the cooling towers. (A) In case of induced draft cooling tower, the fan is placed at the top of the tower (B) Effectiveness of forced draft cooling tower is reduced by the recirculation of the humid and hot discharged air (C) A natural draft cooling tower is recommended to be used, when the air humidity is low and air temperature is also low (D) Effectiveness of a mechanical draft cooling tower is reduced with increase in air wet-bulb temperature

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Earned value management integrates scope, cost, and schedule measures to: A. assess project performance and progress. B. develop a preliminary budget. C. assess communication effectiveness among project team members. D. assess whether all requirements were met.

Description : Earned value management integrates scope, cost, and schedule measures to:  A. assess project performance and progress.  B. develop a preliminary budget. C. assess communication effectiveness among project team members. D. assess whether all requirements were met.

Last Answer : A. assess project performance and progress.