Equation Of Continuity MCQ - Practice Questions with Answers

Water is flowing at a speed of 1.5 ms^-1 through a horizontal tube of cross-sectional area 10^-2 m² and you are trying to stop the flow by your palm. Assuming that the water stops immediately after hitting the palm, the minimum force (in N) that you must exert should be (density of water=10³ kgm^-3).

Consider the flow is incompressible, which is shown in figure. The magnitude of velocity v is at cross section 3A, 1 m/sec is at cross section 2A, and 4 m/sec is at cross section A. Determine the value of the velocity v

The cylindrical tube of a spray pump has a radius R, one end of which has n fine holes, each of radius r. If the speed of flow of the liquid in the tube is V, the speed of ejection of the liquid through the holes is

Water is flowing through a tube of radius r with a speed v. If this tube is joined to another tube of radius , what is the speed of water in the second tube?

A liquid flows through a pipe of varying diameter. The velocity of the liquid is at a point where the diameter is The velocity of the liquid at a point where the diameter is  will be

Which one of the following statements is correct? When a fluid passes through the narrow part of the nonuniform pipe,

Water from a tap emerges vertically downwards with an initial speed of . The cross-sectional area of the tap is . Assume that the pressure is constant throughout the stream of water and that the flow is steady. The cross-sectional area of the stream 0.15 m below the tap is:

A cubical box of wine has a small spout located in one of the bottom corners. When the box is full and placed on a level surface, opening the spout results in a flow of wine with a initial speed of ${\mathrm{V}}_0$ (see figure). When the box is half empty, someone tilts it at ${45}^{\circ }$ so that the spout is at the lowest point (see figure). When the spout is opened the wine will flow out with a speed of

A large tank is filled with water to a height H. A small hole is made at the base of the tank. It takes ${\mathrm{T}}_1$ time to decrease the height of water to $\mathrm{H}/\eta ,(\eta >1)$ and it takes ${\mathrm{T}}_2$ time to take out the rest of water. If ${\mathrm{T}}_1={\mathrm{T}}_2$ then the value of  $\eta$ is:

Two water pipes and  having diameters and , respectively, are joined in series with the main supply line of water. The velocity of water flowing in the pipe is