Theoretical velocity of jet of water from orifice is given by 

This question was previously asked in
JKSSB JE Civil Jal Shakti 6 Dec 2022 Official Paper (Shift 1)
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Answer (Detailed Solution Below)

Option 1 :
Free
ST 1: JKSSB JE - Surveying
20 Qs. 20 Marks 20 Mins

Detailed Solution

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Explanation:

  

  • Taking datum through the axis of the orifice and applying Bernoulli’s equation to points 1 and 2,
  •  , As the pressure at points 1 and 2 is atmospheric, p1 = p2 = 0. Further, if the cross-sectional area of the tank is very large, the liquid at point 1 is practically standstill and hence V1= 0.

∴ Theoretical velocity of jet of water from the orifice is 

 

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