Two water reservoirs are connected by a siphon (running full) of total length $5000 \mathrm{~m}$ and diameter of $0.10 m,$ as shown below (figure not drawn to scale).

The inlet leg length of the siphon to its summit is $2000 \mathrm{~m} .$ The difference in the water surface levels of the two reservoirs is $5 \mathrm{~m} .$ Assume the permissible minimum absolute pressure at the summit of siphon to be $2.5 \mathrm{~m}$ of water when running full. Given: friction factor $f=0.02$ throughout, atmospheric pressure $=10.3 \mathrm{~m}$ of water, and acceleration due to gravity $g=9.81$ $m / s^{2} .$ Considering only major loss using Darcy-Weisbach equation, the maximum height of the summit of siphon from the water level of upper reservoir, $h$ (in $m,$ round off to 1 decimal place) is

Two water reservoirs are connected by a siphon (running full) of total length $5000 \mathrm{~m}$ and diameter of $0.10 m,$ as shown below (figure not drawn to scale).

The inlet leg length of the siphon to its summit is $2000 \mathrm{~m} .$ The difference in the water surface levels of the two reservoirs is $5 \mathrm{~m} .$ Assume the permissible minimum absolute pressure at the summit of siphon to be $2.5 \mathrm{~m}$ of water when running full. Given: friction factor $f=0.02$ throughout, atmospheric pressure $=10.3 \mathrm{~m}$ of water, and acceleration due to gravity $g=9.81$ $m / s^{2} .$ Considering only major loss using Darcy-Weisbach equation, the maximum height of the summit of siphon from the water level of upper reservoir, $h$ (in $m,$ round off to 1 decimal place) is

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