Fluid Dynamics

Q: if A,v,t denote area of a pipe,velocity of the fluid and time of flow,then rate of flow will be

(a) :  Av/t
(b) :  Avt
(c) :  Av
(d) :  vt/A
(e) :  None of the Above
Answer:  Av
Explanation:  

Q: turbulent flow is

(a) :  unsteady and regular
(b) :  steady and irregular
(c) :  unsteady and irregular
(d) :  none of these
(e) :  None of the Above
Answer:  unsteady and irregular
Explanation:  

Q: the pipe near the low end of a large water storage tank develops a small leak and a stream of water shoots from it.the top of water in the tank is 15 m above the point of leak.the water will rush from the hole at a speed of

(a) :  37 m sec¯¹
(b) :  7 m sec¯¹
(c) :  27 m sec¯¹
(d) :  17 m sec¯¹
(e) :  None of the Above
Answer:  17 m sec¯¹
Explanation:  

Q: the action of perfume bottles depends upon

(a) :  bernoulli's equation
(b) :  equation of continuity
(c) :  surface tension
(d) :  none of these
(e) :  None of the Above
Answer:  bernoulli's equation
Explanation:  

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