Fluid Dynamics

Q: P1-P2 =1/2 pv2 is called:

(a) :  Bernouli's equation
(b) :  Equation of continuity
(c) :  Venturi equation
(d) :  None of them
(e) :  None of the Above
Answer:  Venturi equation
Explanation:  

Q: in deriving bernoulli's equation,we assume that fluid is

(a) :  compressible,viscous and flow is turbulent
(b) :  incompressible,non-viscous and flow is steady state
(c) :  incompressible,viscous and flow is steady state
(d) :  none of above
(e) :  None of the Above
Answer:  incompressible,non-viscous and flow is steady state
Explanation:  

Q: The rate of flow of water in certain pipe is 125 m3/sec. If its area of cross-section is 25 x 10-4 m , then speed of water will be:

(a) :  6 x 104 m/sec
(b) :  3.125 x 10-7 m/sec
(c) :  0.2 x 10-4 m/sec
(d) :  Both A and B are correct
(e) :  None of the Above
Answer:  6 x 104 m/sec
Explanation:  

Q: we can infer from bernoulli's theorem that where the speed of the fluid is high,there the pressure will be

(a) :  high
(b) :  low
(c) :  sometimes high,sometimes low
(d) :  none of these
(e) :  None of the Above
Answer:  low
Explanation:  

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