For an irrotational flow, the equation is given by Cauchy-Riemann Reynold Laplac

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Question
For an irrotational flow, the equation is given by
Options
A. Cauchy-Riemann
B. Reynold
C. Laplaces
D. Bernoulli.

Correct Answer

Laplaces

Hydraulics problems

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1. Hydraulic radius is equal to
Options
A. area divided by the square of wetted perimeter
B. area divided by wetted perimeter
C. wetted perimeter divided by area
D. square root of the area.

2. Discharge with velocity of approach, over a rectangular weir is
Options
A. C_d x L x 2g [(H + ha)^3/2 + ha^3/2]
B. C_d x L x 2g [(H + ha)^3/2 - ha^3/2]
C. C_d x L x 2g [(H - ha)^3/2 + ha^3/2]
D. C_d x L x 2g [(H - ha)^3/2 - ha^3/2]

3. On a flow net diagram, the distance between two consecutive steam lines at two successive sections are 1 cm and 0.5 cm respectively. If the velocity at the first section is 1 m/sec, the velocity at the second is
Options
A. 1.0 m/sec
B. 0.5 m/sec
C. 2.0 m/sec
D. 2.5 m/sec
E. 3 m/sec.

6. Pick up the correct statement from the following :
Options
A. Dimensional homogeneity means the dimensions of each term in an equation on both sides are equal
B. Dimensionally homogeneous equations are independent of the system of units
C. In dimensionally homogeneous equation, the powers of fundamental dimensions on either side of the equation are identical
D. All the above.

10. For trunk and out-fall, the type of sewers generally used, is
Options
A. standard egg shaped
B. circular shaped
C. horse shoe shaped
D. parabolic shaped
E. semi-elliptical shaped.

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