Related Questions

The loss of head at exit of a pipe is (where v = Velocity of liquid in the pipe)
A $$\frac{{{{\text{v}}^2}}}{{2{\text{g}}}}$$
B $$\frac{{0.5{{\text{v}}^2}}}{{2{\text{g}}}}$$
C $$\frac{{0.375{{\text{v}}^2}}}{{2{\text{g}}}}$$
D $$\frac{{0.75{{\text{v}}^2}}}{{2{\text{g}}}}$$
A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is:
A 6 hours
B 10 hours
C 15 hours
D 30 hours
The net positive suction head (NPSH) of a centrifugal pump is defined as the sum of the velocity head and the pressure head at the
A Discharge
B Suction
C Suction minus vapor pressure of the liquid at suction temperature
D Discharge minus vapor pressure of the liquid at the discharge temperature
The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is
A $$\frac{1}{3}$$
B $$\frac{1}{4}$$
C $$\frac{1}{2}$$
D $$\frac{2}{3}$$
Velocity head on sudden enlargement in a horizontal pipe is converted into __________ head.
A Elevation
B Pressure
C Both A and B
D Neither A nor B
Pipe A alone can fill a tankin 8 hours .Pipe B can fill it in 6 hours . If both the pipes are operated and after 2 hours pipe A is closed, then the other pipe will fill the tank in.
A 6 hours
B 3 1/2 hours
C 4 hours
D 1 1/2 hours
A pipe fills a tank in P minuties and another pipe fills the tank in Q minutes. A different pipe makes the tank empty in R minutes. If all these three pipe are opened then in how many minutes the tank will be full?
A p+q-qpqr
B pq+pr-pqpqr
C pq+qr-prpqr
D pqrqr+pr-pq
A water tank with 64-gallon capacity is filled by pipe A and emptied by pipe B. If the rate of water flow through pipe A is 2 gallons per hour, how many gallons per hour should flow through pipe B so that when both pipes are open, the initially empty tank shold be full in exactly 96 hours?
A 3/8
B 4/3
C 2/3
D 8/3
Pipe A can fill an empty cistern in 4 hours while along with Pipe B it can fill it up in 3 hours. Only Pipe A is turned on for an hour after which Pipe B is also turned on. How much total time will it take to fill up the cistern?
A 3 hrs 20 min
B 3 hrs 25 min
C 3 hrs 15 min
D 3 hrs
When a liquid is flowing through a pipe, the velocity of the liquid is
A Maximum at the centre and minimum near the walls
B Minimum at the centre and maximum near the walls
C Zero at the centre and maximum near the walls
D Maximum at the centre and zero near the walls

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