Related Questions

The ratio of the depth of flow to the diameter of the channel for maximum discharge in a circular channel in open channel flow is
A 0.1
B 0.55
C 0.95
D 1.85
The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.
A 0.34 times
B 0.67 times
C 0.81 times
D 0.95 times
The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.
A 0.34 times
B 0.67 times
C 0.81 times
D 0.95 times
The equivalent diameter for fluid flow through a channel of constant non-circular cross section of area 'A' is given by (where, P = perimeter of the channel in contact with the fluid)
A 4 A/P
B A/P
C 4 P/A
D $$\sqrt {\text{A}} $$
The ratio of the hydraulic radius to the diameter of the channel, for maximum mean velocity of flow in a circular channel, in open channel flow is
A 0.3
B 0.9
C 0.03
D 0.66
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
Water flows into an empty 64-gallon drum through pipe A and flows out through pipe B. If the rate of flow through A is 2 gallons/hour, how many gallons per hour must flow out through pipe B so that the drum is full in exactly 96 hours?
A 3/8
B 1/2
C 2/3
D 4/3
The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be
A Parabolic
B Hyperbolic
C Straight line
D None of these
The critical depth for a channel is given by (where q = Unit discharge (discharge per unit width) through the channel)
A $${\left( {\frac{{\text{q}}}{{\text{g}}}} \right)^{\frac{1}{2}}}$$
B $${\left( {\frac{{{{\text{q}}^2}}}{{\text{g}}}} \right)^{\frac{1}{3}}}$$
C $${\left( {\frac{{{{\text{q}}^3}}}{{\text{g}}}} \right)^{\frac{1}{4}}}$$
D $${\left( {\frac{{{{\text{q}}^4}}}{{\text{g}}}} \right)^{\frac{1}{5}}}$$
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

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