Q. In order to measure the flow with a venturimeter, it is installed in

View solution

Q. The discharge through a large rectangular orifice is given by (where H1 = Height of the liquid above the top of the orifice, H2 = Height of the liquid above the bottom of the orifice, b = Breadth of the orifice, and Cd = Coefficient of discharge)

View solution

Q. The diameter of the nozzle (d) for maximum transmission of power is given by (where D = Diameter of pipe, f = Darcy 's coefficient of friction for pipe, and l = Length of pipe )

View solution

Q. The discharge over a right angled notch is (where H = Height of liquid above the apex of notch)

View solution

Q. A weir is said to be broad crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

View solution

Q. A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)

View solution

Q. An error of 1% in measuring head over the apex of the notch (H) will produce an error of __________ in discharge over a triangular notch.

View solution

Q. A compound pipe of diameter d1, d2 and d3 having lengths l1, l2 and l3 is to be replaced by an equivalent pipe of uniform diameter d and of the same length (l) as that of the compound pipe. The size of the equivalent pipe is given by

View solution

Q. The velocity corresponding to Reynold number of 2800, is called

View solution

Q. When the pipes are in series, the total head loss is equal to the sum of the head loss in each pipe.

View solution

Q. Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, at right angles to the direction of flow of the liquid is known as lift.

View solution

Q. The efficiency of power transmission through pipe is (where H = Total supply head, and hf = Head lost due to friction in the pipe)

View solution

Q. The velocity at which the laminar flow stops, is known as

View solution

Q. When a cylindrical vessel, containing some liquid, is rotated about its vertical axis, the liquid surface is depressed down at the axis of its rotation and rises up near the walls of the vessel on all sides. This type of flow is known as

View solution

Q. The Newton's law of resistance is based on the assumption that the

View solution

Q. The Euler's equation for the motion of liquids is based upon the assumption that

View solution

Q. A weir is usually made of masonry or concrete.

View solution

Q. The discharge over a rectangular weir, considering the velocity of approach, is (where H1 = Total height of water above the weir = H + Ha H = Height of water, over the crest of the weir, and Ha = Height of water, due to velocity of approach)

View solution

Q. A flow in which __________ force is dominating over the viscosity is called turbulent flow.

View solution

Q. If an incompressible liquid is continuously flowing through a pipe, the quantity of liquid passing per second is different at different sections.

View solution