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2. A fire truck is sucking water from a river and delivering it through a long hose to a nozzle. The total length of the galvanized iron hose corrected for valves, fittings, entrance, etc. - is 90 [m]. The energy provided by the fire truck for pumping the water is 53 [kJ/kg]. What diameter is needed for the hose to provide an average velocity of 30 [m/s]? -

2. A fire truck is sucking water from a river and delivering it through a long hose to a nozzle. The total length of the galvanized iron hose corrected for valves, fittings, entrance, etc. - is 90 [m]. The energy provided by the fire truck for pumping the water is 53 [kJ/kg]. What diameter is needed for the hose to provide an average velocity of 30 [m/s]? -

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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2. A fire truck is sucking water from a river and delivering it through a long hose to a nozzle. The total length of the galvanized iron hose corrected for valves, fittings, entrance, etc. - is 90 [m]. The energy provided by the fire truck for pumping the water is 53 [kJ/kg]. What diameter is needed for the hose to provide an average velocity of 30 [m/s]? river I I 30 [m] pump 16
Transcribed Image Text:2. A fire truck is sucking water from a river and delivering it through a long hose to a nozzle. The total length of the galvanized iron hose corrected for valves, fittings, entrance, etc. - is 90 [m]. The energy provided by the fire truck for pumping the water is 53 [kJ/kg]. What diameter is needed for the hose to provide an average velocity of 30 [m/s]? river I I 30 [m] pump 16
Table 2.1. Roughness of Clean Pipe² €, mm Pipe material Riveted steel Concrete Wood stave Cast iron Galvanized iron Asphalted cast iron Commercial steel or wrought iron Drawn tubing Glass Plastic (PVC, ABS, polyethylene) 1-10 0.3-3 0.2-1 0.26 (0.25) ¹ 0.15 (0.15) 0.12 (0.13) b 0.046 (0.043) 0.0015 0 0 "Adapted from Fischer and Porter Co., Hatboro, PA, Catalogs section 98-A (1947). Values in parentheses from Colebrook (1939).
Transcribed Image Text:Table 2.1. Roughness of Clean Pipe² €, mm Pipe material Riveted steel Concrete Wood stave Cast iron Galvanized iron Asphalted cast iron Commercial steel or wrought iron Drawn tubing Glass Plastic (PVC, ABS, polyethylene) 1-10 0.3-3 0.2-1 0.26 (0.25) ¹ 0.15 (0.15) 0.12 (0.13) b 0.046 (0.043) 0.0015 0 0 "Adapted from Fischer and Porter Co., Hatboro, PA, Catalogs section 98-A (1947). Values in parentheses from Colebrook (1939).
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