360801
The reading of a manometer fitted to a closed tap is \(3.5 \times {10^5}\,N{m^{ - 2}}.\) If the valve is opened, the reading of the manometer falls to \(3 \times {10^5}{\mkern 1mu} {\mkern 1mu} N{m^{ - 2}}.\) The velocity of water is
360802
Air is blown through a hole on a closed pipe containing liquid. Then the pressure will
1 Increase downwards
2 Increase on sides
3 Never increases
4 Increase in all directions
Explanation:
Conceptual Question
PHXI10:MECHANICAL PROPERTIES OF FLUIDS
360803
Statement A : Bernoulli's equation hold for non - steady or turbulent flows. Statement B : In these situations, velocity and pressure are constant with time.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Bernoulli's equation does not hold for non steady or turbulent flow if liquid, it is because velocity and pressure are constantly fluctutating with time. So option (4) is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS
360804
Assertion : The velocity of horizontal flow of a liquid is smaller when pressure is larger and vice versa. Reason : According to Bernoulli's theorem, for the stream line flow of an ideal liquid, the total energy per unit mass remains constant.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
According to Bernoulli's theorem, \(P+\dfrac{1}{2} \rho v^{2}=\) constant i.e., when velocity is large, the pressure is less in a stream line flow of an ideal liquid through a horizontal tube. So option (1) is correct.
360801
The reading of a manometer fitted to a closed tap is \(3.5 \times {10^5}\,N{m^{ - 2}}.\) If the valve is opened, the reading of the manometer falls to \(3 \times {10^5}{\mkern 1mu} {\mkern 1mu} N{m^{ - 2}}.\) The velocity of water is
360802
Air is blown through a hole on a closed pipe containing liquid. Then the pressure will
1 Increase downwards
2 Increase on sides
3 Never increases
4 Increase in all directions
Explanation:
Conceptual Question
PHXI10:MECHANICAL PROPERTIES OF FLUIDS
360803
Statement A : Bernoulli's equation hold for non - steady or turbulent flows. Statement B : In these situations, velocity and pressure are constant with time.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Bernoulli's equation does not hold for non steady or turbulent flow if liquid, it is because velocity and pressure are constantly fluctutating with time. So option (4) is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS
360804
Assertion : The velocity of horizontal flow of a liquid is smaller when pressure is larger and vice versa. Reason : According to Bernoulli's theorem, for the stream line flow of an ideal liquid, the total energy per unit mass remains constant.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
According to Bernoulli's theorem, \(P+\dfrac{1}{2} \rho v^{2}=\) constant i.e., when velocity is large, the pressure is less in a stream line flow of an ideal liquid through a horizontal tube. So option (1) is correct.
360801
The reading of a manometer fitted to a closed tap is \(3.5 \times {10^5}\,N{m^{ - 2}}.\) If the valve is opened, the reading of the manometer falls to \(3 \times {10^5}{\mkern 1mu} {\mkern 1mu} N{m^{ - 2}}.\) The velocity of water is
360802
Air is blown through a hole on a closed pipe containing liquid. Then the pressure will
1 Increase downwards
2 Increase on sides
3 Never increases
4 Increase in all directions
Explanation:
Conceptual Question
PHXI10:MECHANICAL PROPERTIES OF FLUIDS
360803
Statement A : Bernoulli's equation hold for non - steady or turbulent flows. Statement B : In these situations, velocity and pressure are constant with time.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Bernoulli's equation does not hold for non steady or turbulent flow if liquid, it is because velocity and pressure are constantly fluctutating with time. So option (4) is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS
360804
Assertion : The velocity of horizontal flow of a liquid is smaller when pressure is larger and vice versa. Reason : According to Bernoulli's theorem, for the stream line flow of an ideal liquid, the total energy per unit mass remains constant.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
According to Bernoulli's theorem, \(P+\dfrac{1}{2} \rho v^{2}=\) constant i.e., when velocity is large, the pressure is less in a stream line flow of an ideal liquid through a horizontal tube. So option (1) is correct.
360801
The reading of a manometer fitted to a closed tap is \(3.5 \times {10^5}\,N{m^{ - 2}}.\) If the valve is opened, the reading of the manometer falls to \(3 \times {10^5}{\mkern 1mu} {\mkern 1mu} N{m^{ - 2}}.\) The velocity of water is
360802
Air is blown through a hole on a closed pipe containing liquid. Then the pressure will
1 Increase downwards
2 Increase on sides
3 Never increases
4 Increase in all directions
Explanation:
Conceptual Question
PHXI10:MECHANICAL PROPERTIES OF FLUIDS
360803
Statement A : Bernoulli's equation hold for non - steady or turbulent flows. Statement B : In these situations, velocity and pressure are constant with time.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Bernoulli's equation does not hold for non steady or turbulent flow if liquid, it is because velocity and pressure are constantly fluctutating with time. So option (4) is correct.
PHXI10:MECHANICAL PROPERTIES OF FLUIDS
360804
Assertion : The velocity of horizontal flow of a liquid is smaller when pressure is larger and vice versa. Reason : According to Bernoulli's theorem, for the stream line flow of an ideal liquid, the total energy per unit mass remains constant.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
According to Bernoulli's theorem, \(P+\dfrac{1}{2} \rho v^{2}=\) constant i.e., when velocity is large, the pressure is less in a stream line flow of an ideal liquid through a horizontal tube. So option (1) is correct.
