Engineering, 16.10.2020 19:01 Derrionna
Sharon is designing a house in an area that receives a lot of rainfall all year. Which material should she use to stick the wooden structures inside
and outside the house so that it stops the water from seeping inside the house?
OA polyvinyl steel
B. concrete
OC polyurethane
OD polyvinyl acetate emulsion
E buty
Answers: 2
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Air is to be cooled in the evaporator section of a refrigerator by passing it over a bank of 0.8-cm-outer-diameter and 0.4-m-long tubes inside which the refrigerant is evaporating at -20°c. air approaches the tube bank in the normal direction at 0°c and 1 atm with a mean velocity of 4 m/s. the tubes are arranged in-line with longitudinal and transverse pitches of sl- st 1.5 cm. there are 30 rows in the flow direction with 15 tubes in each row. determine (a) the refrigeration capacity of this system and (b) pressure drop across the tube bank. evaluate the air properties at an assumed mean temperature of -5°c and 1 atm. is this a good assumption?
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Engineering, 04.07.2019 18:10
Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.
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Sharon is designing a house in an area that receives a lot of rainfall all year. Which material shou...
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