eng_103_midterm_exam_sample_pb_6_txt - Where in the tube is...

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4. (Siphon --- 25 pts) A plastic tube of 50 mm diameter is used to siphon water from a large tank, as shown in the figure below. If the outside pressure of the tube is 25 kPa greater than the pressure within the tube, the tube will collapse and the siphon will stop. Assume viscous effects are negligible. Atmospheric pressure P atm = 101.35kPa. D, inside hose a) What is the pressure at point A , which is not under the influence of the siphon? ANS: P A = b)
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Unformatted text preview: Where in the tube is the pressure the least and what is this minimum pressure so that the siphon will not stop working due to the collasping of the tube ? ANS. Point of least pressure ; Pressure at this point = c) Determine the minimum value of h allowed without the siphon stopping. ANS. h = d) For this value of h, what is the volume flow rate Q within the siphon? ANS. Q = 4m 2m h large water tank A B inside hose C , inside hose Siphon hose...
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