Bernoulli’s Principle
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360814 Correct Bernoulli's equation is (symbols have their usual meaning)

1 \(P+\rho g h+\dfrac{1}{2} \rho v^{2}=\) constant
2 \(P+\dfrac{1}{2} \rho g h+\dfrac{1}{2} \rho v^{2}=\) constant
3 \(P+\rho g h+\rho v^{2}=\) constant
4 \(P+m g h+\dfrac{1}{2} m v^{2}=\) constant
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360815 According to Bernoulli's equation, \(\dfrac{p}{\rho g}+h+\dfrac{1}{2} \dfrac{v^{2}}{g}=\text { constant }\)
The terms \(A\left(=\dfrac{p}{\rho g}\right), B(=h)\) and \(C\left(=\dfrac{v^{2}}{2 g}\right)\) are generally called respectively

1 gravitational head, pressure head and velocity head
2 gravity, gravitational head and velocity head
3 pressure head, gravitational head and velocity head
4 gravity, pressure and velocity head
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360816 Water is flowing in a pipe of uniform cross section. At some place the pipe becomes narrow. The pressure of water at this place.

1 Remains same
2 May increase or decrease
3 Increases
4 Decreases.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360817 supporting img
The figure shows a liquid of given density flowing steadily in horizontal tube of varying cross- section. Cross sectional areas at \(A\) is \(1.5\;c{m^2}\), and \(B\) is \(25\;m{m^2}\), if the speed of liquid at \(B\) is \(60\;cm/s\) then \(\left( {{P_A} - {P_B}} \right)\) is (Given: \({{P_A}}\) and \({{P_B}}\) are liquid pressures at \(A\) and \(B\) points. Density \(\rho = 1000\;kg\;{m^{ - 3}},A\) and \(B\) are on the axis of tube)

1 \(36\,Pa\)
2 \(27\,Pa\)
3 \(135\,Pa\)
4 \(175\,Pa\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360814 Correct Bernoulli's equation is (symbols have their usual meaning)

1 \(P+\rho g h+\dfrac{1}{2} \rho v^{2}=\) constant
2 \(P+\dfrac{1}{2} \rho g h+\dfrac{1}{2} \rho v^{2}=\) constant
3 \(P+\rho g h+\rho v^{2}=\) constant
4 \(P+m g h+\dfrac{1}{2} m v^{2}=\) constant
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360815 According to Bernoulli's equation, \(\dfrac{p}{\rho g}+h+\dfrac{1}{2} \dfrac{v^{2}}{g}=\text { constant }\)
The terms \(A\left(=\dfrac{p}{\rho g}\right), B(=h)\) and \(C\left(=\dfrac{v^{2}}{2 g}\right)\) are generally called respectively

1 gravitational head, pressure head and velocity head
2 gravity, gravitational head and velocity head
3 pressure head, gravitational head and velocity head
4 gravity, pressure and velocity head
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360816 Water is flowing in a pipe of uniform cross section. At some place the pipe becomes narrow. The pressure of water at this place.

1 Remains same
2 May increase or decrease
3 Increases
4 Decreases.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360817 supporting img
The figure shows a liquid of given density flowing steadily in horizontal tube of varying cross- section. Cross sectional areas at \(A\) is \(1.5\;c{m^2}\), and \(B\) is \(25\;m{m^2}\), if the speed of liquid at \(B\) is \(60\;cm/s\) then \(\left( {{P_A} - {P_B}} \right)\) is (Given: \({{P_A}}\) and \({{P_B}}\) are liquid pressures at \(A\) and \(B\) points. Density \(\rho = 1000\;kg\;{m^{ - 3}},A\) and \(B\) are on the axis of tube)

1 \(36\,Pa\)
2 \(27\,Pa\)
3 \(135\,Pa\)
4 \(175\,Pa\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360814 Correct Bernoulli's equation is (symbols have their usual meaning)

1 \(P+\rho g h+\dfrac{1}{2} \rho v^{2}=\) constant
2 \(P+\dfrac{1}{2} \rho g h+\dfrac{1}{2} \rho v^{2}=\) constant
3 \(P+\rho g h+\rho v^{2}=\) constant
4 \(P+m g h+\dfrac{1}{2} m v^{2}=\) constant
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360815 According to Bernoulli's equation, \(\dfrac{p}{\rho g}+h+\dfrac{1}{2} \dfrac{v^{2}}{g}=\text { constant }\)
The terms \(A\left(=\dfrac{p}{\rho g}\right), B(=h)\) and \(C\left(=\dfrac{v^{2}}{2 g}\right)\) are generally called respectively

1 gravitational head, pressure head and velocity head
2 gravity, gravitational head and velocity head
3 pressure head, gravitational head and velocity head
4 gravity, pressure and velocity head
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360816 Water is flowing in a pipe of uniform cross section. At some place the pipe becomes narrow. The pressure of water at this place.

1 Remains same
2 May increase or decrease
3 Increases
4 Decreases.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360817 supporting img
The figure shows a liquid of given density flowing steadily in horizontal tube of varying cross- section. Cross sectional areas at \(A\) is \(1.5\;c{m^2}\), and \(B\) is \(25\;m{m^2}\), if the speed of liquid at \(B\) is \(60\;cm/s\) then \(\left( {{P_A} - {P_B}} \right)\) is (Given: \({{P_A}}\) and \({{P_B}}\) are liquid pressures at \(A\) and \(B\) points. Density \(\rho = 1000\;kg\;{m^{ - 3}},A\) and \(B\) are on the axis of tube)

1 \(36\,Pa\)
2 \(27\,Pa\)
3 \(135\,Pa\)
4 \(175\,Pa\)
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360814 Correct Bernoulli's equation is (symbols have their usual meaning)

1 \(P+\rho g h+\dfrac{1}{2} \rho v^{2}=\) constant
2 \(P+\dfrac{1}{2} \rho g h+\dfrac{1}{2} \rho v^{2}=\) constant
3 \(P+\rho g h+\rho v^{2}=\) constant
4 \(P+m g h+\dfrac{1}{2} m v^{2}=\) constant
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360815 According to Bernoulli's equation, \(\dfrac{p}{\rho g}+h+\dfrac{1}{2} \dfrac{v^{2}}{g}=\text { constant }\)
The terms \(A\left(=\dfrac{p}{\rho g}\right), B(=h)\) and \(C\left(=\dfrac{v^{2}}{2 g}\right)\) are generally called respectively

1 gravitational head, pressure head and velocity head
2 gravity, gravitational head and velocity head
3 pressure head, gravitational head and velocity head
4 gravity, pressure and velocity head
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360816 Water is flowing in a pipe of uniform cross section. At some place the pipe becomes narrow. The pressure of water at this place.

1 Remains same
2 May increase or decrease
3 Increases
4 Decreases.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS

360817 supporting img
The figure shows a liquid of given density flowing steadily in horizontal tube of varying cross- section. Cross sectional areas at \(A\) is \(1.5\;c{m^2}\), and \(B\) is \(25\;m{m^2}\), if the speed of liquid at \(B\) is \(60\;cm/s\) then \(\left( {{P_A} - {P_B}} \right)\) is (Given: \({{P_A}}\) and \({{P_B}}\) are liquid pressures at \(A\) and \(B\) points. Density \(\rho = 1000\;kg\;{m^{ - 3}},A\) and \(B\) are on the axis of tube)

1 \(36\,Pa\)
2 \(27\,Pa\)
3 \(135\,Pa\)
4 \(175\,Pa\)