Q. An open tank containing liquid is moving with an acceleration on an inclined plane. The inclination of the free surface of the liquid will be __________ to the acceleration of the tank.

View solution

Q. Euler's number is the ratio of __________ force to pressure force.

View solution

Q. A flow is called sub-sonic, if the Mach number is

View solution

Q. The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.

View solution

Q. Re-entrant or Borda's mouthpiece is an __________ mouthpiece.

View solution

Q. The flow in a pipe is neither laminar nor turbulent when Reynold number is

View solution

Q. The intensity of pressure on an immersed surface __________ with the increase in depth.

View solution

Q. When the coefficient of discharge (Cd) is 0.623, then the general equation for discharge over a rectangular weir is

View solution

Q. The total energy line lies over the centre line of the pipe by an amount equal to

View solution

Q. A piezometer tube is used only for measuring

View solution

Q. The flow in a pipe is turbulent when Reynold number is

View solution

Q. When a tank containing liquid moves with an acceleration in the horizontal direction, then the free surface of the liquid

View solution

Q. The most economical section of a rectangular channel is one which has hydraulic mean depth or hydraulic radius equal to

View solution

Q. The ratio of velocity of fluid in an undisturbed stream to the velocity of sound wave is known as Mach number.

View solution

Q. The length AB of a pipe ABC in which the liquid is flowing has diameter (d1) and is suddenly contracted to diameter (d2) at B which is constant for the length BC. The loss of head due to sudden contraction, assuming coefficient of contraction as 0.62, is

View solution

Q. All the gases are considered to have compressible flow and all the liquids are considered to have incompressible flow.

View solution

Q. When a cylindrical vessel containing liquid is revolved, the surface of the liquid takes the shape of

View solution

Q. When an internal mouthpiece is running free, the discharge through the mouthpiece is (where a = Area of mouthpiece, and H = Height of liquid above the mouthpiece)

View solution

Q. A flow through an expanding tube at increasing rate is called unsteady non-uniform flow.

View solution

Q. Water is __________ liquid.

View solution