Engineering, 10.07.2021 19:00 dabboy
Trình bày các nhóm chỉ tiêu thường được quan tâm tới trong đánh giá đa chỉ tiêu dự án xây dựng. Trong các nhóm chỉ tiêu đó, những nhóm chỉ tiêu nào có sự mâu thuẫn với nhau?
Answers: 3
Engineering, 04.07.2019 18:10
An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet
Answers: 3
Engineering, 04.07.2019 18:10
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 18:20
Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero
Answers: 2
Engineering, 04.07.2019 18:20
Wiy doeres rere okhn a pump whon working betwon the same pressure range?
Answers: 2
Trình bày các nhóm chỉ tiêu thường được quan tâm tới trong đánh giá đa chỉ tiêu dự án xây dựng. Tron...
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