An exterior wall is made up of 4" of Precast Concrete of Conductivity (K) 1.0 BTU/ in. Hr. sf °F, a 2" Air Space of Resistance (R) 1.13, Concrete Block of Transmittance (U) 0.901 BTU/ Hr. sf. °F, 2" of Insulation of Resistance (R) 15.0 and 1/2" of Gwb of Resistance (R) 0.32. The Resistance (R)'of the Outside Air Film is 0.17 and the Resistance (R) of the Inside Air Film is 0.68. Area of the wall is1,000 SF. The outside Temperature is 32°F, The inside Temperature is 72°F and inside Relative Humidity is 30%. What is the Temperature drop in °F across the insulation? The temperature at the interior side (warm side) - the temperature at the exterior (cold side) =? O 41.46 22.41 O 72 O 40. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers

An exterior wall is made up of 4" of Precast Concrete of Conductivity (K) 1.0 BTU/ in. Hr. sf °F, a 2" Air Space of Resistance (R) 1.13, Concrete Block of Transmittance (U) 0.901 BTU/ Hr. sf. °F, 2" of Insulation of Resistance (R) 15.0 and 1/2" of Gwb of Resistance (R) 0.32. The Resistance (R)'of the Outside Air Film is 0.17 and the Resistance (R) of the Inside Air Film is 0.68. Area of the wall is1,000 SF. The outside Temperature is 32°F, The inside Temperature is 72°F and inside Relative Humidity is 30%. What is the Temperature drop in °F across the insulation? The temperature at the interior side (warm side) - the temperature at the exterior (cold side) =? O 41.46 22.41 O 72 O 40. Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers

EBK ELECTRICAL WIRING RESIDENTIAL

19th Edition

ISBN:9781337516549

Author:Simmons

Publisher:Simmons

Chapter3: Determining The Required Number Of Branch Circuits, Lighting Outlets, And Receptacle Outlets

Section: Chapter Questions

Problem 6R: What is the unit load per square foot for dwelling units? See Table 220.12. __________

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