Which of the following equations are used for the derivation of the differential equation for water surface profile in open channel flow :1. Continuity equation2. Energy equation3. Momentum equationSelect the correct answer using the codes given below :

Which of the following equations are used for the derivation of the di

1.	Which of the following equations are used for the derivation of the differential equation for water surface profile in open channel flow :1. Continuity equation2. Energy equation3. Momentum equationSelect the correct answer using the codes given below :
A.	1, 2 and 3
B.	1 and 3
C.	2 and 3
D.	1 and 2
Answer» B. 1 and 3

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Which of the following equations are used for the derivation of the differential equation for water surface profile in open channel flow :1. Continuity equation2. Energy equation3. Momentum equationSelect the correct answer using the codes given below :

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