Engineering, 28.11.2020 14:00 drewje12
A duck is cooked in the kitchen oven for 4 hours. Knowing that the oven, powered by 220 V, absorbs a current of 20 A and uses energy costing 0.048 € / kWh, how much does it cost to cook the duck?
Answers: 1
Engineering, 04.07.2019 18:10
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?
Answers: 1
Engineering, 04.07.2019 19:10
The proportional limit is always greater than the yield strength for a material. a)-trune b)- false
Answers: 3
Engineering, 06.07.2019 06:10
The elements influencing a materials service performance include which of the following (mark all that apply) a)- stress b)- corrosion c)- temperature d)- vibration e)- operating cycles
Answers: 2
Engineering, 09.07.2019 18:30
When your driver license is you will be prohibited from driving for a specified length of time a. denied b. suspended c. revoked d. canceled
Answers: 2
A duck is cooked in the kitchen oven for 4 hours. Knowing that the oven, powered by 220 V, absorbs a...
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