Physics
Fluid-Mechanics
Easy
Question
For the area a of the hole is much lesser than the area of the base of a vessel of liquid, velocity of efflux v of the liquid in an accelerating vessel is:
- None
The correct answer is:
Related Questions to study
Physics
When a hole is made in the side of a container holding water, water flows out and follows a parabolic trajectory. If a hole is made in the side of the container and the container is dropped in free fall (just before the water starts coming out), the before the water starts coming out), the water flow (Neglect effect of surface tension)
When a hole is made in the side of a container holding water, water flows out and follows a parabolic trajectory. If a hole is made in the side of the container and the container is dropped in free fall (just before the water starts coming out), the before the water starts coming out), the water flow (Neglect effect of surface tension)
PhysicsFluid-Mechanics
Physics
A siphon in use is demonstrated in the following figure. The density of the liquid flowing in siphon is 1.5 gm / cc. The pressure difference between the point P and S will be
A siphon in use is demonstrated in the following figure. The density of the liquid flowing in siphon is 1.5 gm / cc. The pressure difference between the point P and S will be
PhysicsFluid-Mechanics
Physics
A cylindrical tank has a hole of 1 cm2 in its bottom. If the water is allowed to flow into the tank from a tube above it at the rate of 70 cm3/sec, then the maximum height up to which water can rise in the tank is
A cylindrical tank has a hole of 1 cm2 in its bottom. If the water is allowed to flow into the tank from a tube above it at the rate of 70 cm3/sec, then the maximum height up to which water can rise in the tank is
PhysicsFluid-Mechanics
Physics
There is a hole in the bottom of tank having water. If total pressure at bottom is 3 atm 
then the velocity of water flowing from hole is
There is a hole in the bottom of tank having water. If total pressure at bottom is 3 atm then the velocity of water flowing from hole is
PhysicsFluid-Mechanics
Physics
A large tank is filled with water to a height H. A small hole is made at the base of the tank. It takes time to decrease the height of water to 
; and it takes T2 time to take out the rest of water. If T1=T2, then the value of 
is
A large tank is filled with water to a height H. A small hole is made at the base of the tank. It takes time to decrease the height of water to ; and it takes T2 time to take out the rest of water. If T1=T2, then the value of is
PhysicsFluid-Mechanics
Physics
Column I Shows the Bernoulli's equation in the different forms. Column II lists certain units each of which pertains to one of the possible forms of the equation..
(where z is ratio of height to volume)
Now match the given columns and select the correct option from the codes given below. Codes
Column I Shows the Bernoulli's equation in the different forms. Column II lists certain units each of which pertains to one of the possible forms of the equation..
(where z is ratio of height to volume)
Now match the given columns and select the correct option from the codes given below. Codes
PhysicsFluid-Mechanics
Physics
A Pitot tube is shown in figure. Wind blows in the direction shown. Air at inlet A is brought to rest, whereas its speed just outside of opening B is unchanged. The U tube contains mercury of density 
. Find the speed of wind with respect to Pitot tube. Neglect the height difference between A and B and take the density of air as 
.
A Pitot tube is shown in figure. Wind blows in the direction shown. Air at inlet A is brought to rest, whereas its speed just outside of opening B is unchanged. The U tube contains mercury of density . Find the speed of wind with respect to Pitot tube. Neglect the height difference between A and B and take the density of air as .
PhysicsFluid-Mechanics
Physics
A liquid flows through a horizontal tube as shown in figure. The velocities of the liquid in the two sections, which have areas of cross-section A1 and A2 , are v1 and v2, respectively. The difference in the levels of the liquid in the two vertical tubes is h. Then
A liquid flows through a horizontal tube as shown in figure. The velocities of the liquid in the two sections, which have areas of cross-section A1 and A2 , are v1 and v2, respectively. The difference in the levels of the liquid in the two vertical tubes is h. Then
PhysicsFluid-Mechanics
Physics
A long cylindrical tank of radius 1 m is being filled by a pipe of radius 2 cm. The incoming water has a velocity of 1 m/s. The tank has a hole of radius 1 cm at the bottom. What is the height of water in the tank in steady state?
A long cylindrical tank of radius 1 m is being filled by a pipe of radius 2 cm. The incoming water has a velocity of 1 m/s. The tank has a hole of radius 1 cm at the bottom. What is the height of water in the tank in steady state?
PhysicsFluid-Mechanics
Physics
A horizontal pipe line carries water in streamline flow. At a point where the cross-sectional area is 10 cm2 the water velocity is 1 ms-1 and pressure is 2000 Pa. The pressure of water at another point where the cross-sectional area is 5 cm2 is
A horizontal pipe line carries water in streamline flow. At a point where the cross-sectional area is 10 cm2 the water velocity is 1 ms-1 and pressure is 2000 Pa. The pressure of water at another point where the cross-sectional area is 5 cm2 is
PhysicsFluid-Mechanics
Physics
An L-shaped glass tube is immersed in a flowing liquid such that its opening is pointing against the currents. If the speed of flow is v,
.
Study following statement:
(i) The liquid in the tube rises to a level A
(ii) The liquid in the tube rises to the level B
(iii) The liquid in the tube rises to the level C
(iv) The magnitude of h is 
.
Choose the correct statement(s).
An L-shaped glass tube is immersed in a flowing liquid such that its opening is pointing against the currents. If the speed of flow is v,
.
Study following statement:
(i) The liquid in the tube rises to a level A
(ii) The liquid in the tube rises to the level B
(iii) The liquid in the tube rises to the level C
(iv) The magnitude of h is .
Choose the correct statement(s).
PhysicsFluid-Mechanics
Physics
A manometer connected to a closed tap reads 
. When the valve is opened, the reading of manometer falls to 
, then velocity of flow of water is
A manometer connected to a closed tap reads . When the valve is opened, the reading of manometer falls to , then velocity of flow of water is
PhysicsFluid-Mechanics
Physics
The speed of flow past the lower surface of a wing of an aeroplane is 50 ms-1. What speed of flow over the upper surface will give a dynamic lift of 1000 Pa? Density of
air
.
The speed of flow past the lower surface of a wing of an aeroplane is 50 ms-1. What speed of flow over the upper surface will give a dynamic lift of 1000 Pa? Density of
air.
PhysicsFluid-Mechanics
Physics
Figure shows an ideal fluid flowing through a uniform cross-sectional tube in the vertical tube offers no resistance to fluid with liquid velocities 
and pressure 
. Knowing that tube flow then which of the following is true.
Figure shows an ideal fluid flowing through a uniform cross-sectional tube in the vertical tube offers no resistance to fluid with liquid velocities and pressure . Knowing that tube flow then which of the following is true.
PhysicsFluid-Mechanics
Physics
Consider ideal flow of water through a pipe with its axis horizontal. A and B are the two points in the same horizontal level (A lies on the upstream), then
Consider ideal flow of water through a pipe with its axis horizontal. A and B are the two points in the same horizontal level (A lies on the upstream), then
PhysicsFluid-Mechanics
