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Q1. | The discharge over a triangular notch is. |

A. | inversely proportional to H3/2 [Wrong Answer] |

B. | directly proportional to H3/2 [Wrong Answer] |

C. | inversely proportional to H5/2 [Wrong Answer] |

D. | directly proportional to H5/2 [Correct Answer] |

View Answer
Explanation:-
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**Also Read Similar Questions Below :**

⇒ Venturimeter is used to.

measure the velocity of a flowing liquid

measure the pressure of a flowing liquid

measure the discharge of liquid flowing in a pipe

measure the pressure difference of liquid flowing between two points in a pipe line

⇒ The atmospheric pressure at sea level is.

103 kN/m2

10.3 m of water

760 mm of mercury

all of these

⇒ One cubic metre of water weighs.

100 litres

250 litres

500 litres

1000 litres

⇒ A moving fluid mass may be brought to a static equilibrium position, by aplying an imaginary inertia force of the same magnitude as that of the accelerating force but in the opposite direction. This statement is called.

Pascal's law

Archimede's principle

D-Alembert's principle

none of these

⇒ A jet of water discharging from a 40 mm diameter orifice has a diameter of 32 mm at its vena contracta. The coefficient of contraction is.

0.46

0.64

0.78

0.87

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

Yes

No

Both (a) and (b)

None of these

⇒ Bulk modulus of a fluid __________ as the pressure increases.

remains same

remains same

increases

none of these.

⇒ A flow through a long pipe at constant rate is called.

steady uniform flow

steady non-uniform flow

unsteady uniform flow

unsteady non-uniform flow

⇒ The kinematic viscosity is the.

ratio of absolute viscosity to the density of the liquid

ratio of density of the liquid to the absolute viscosity

product of absolute viscosity and density of the liquid

product of absolute viscosity and mass of the liquid

⇒ The unit of kinematic viscosity in S. I. units is.

N-m/s

N-s/m2

m2/s

N-m

⇒ The discharge over a rectangular notch is.

inversely proportional to H3/2

directly proportional to H3/2

inversely proportional to H5/2

directly proportional to H5/2

⇒ The centre of gravity of the volume of the liquid displaced is called.

centre of pressure

centre of buoyancy

metacentre

none of these

⇒ A flow whose streamline is represented by a curve, is called.

one-dimensional flow

two-dimensional flow

three-dimensional flow

four-dimensional flow

⇒ A differential manometer is used to measure.

atmospheric pressure

pressure in pipes and channels

pressure in venturimeter

difference of pressures between two points in a pipe

⇒ The height of a water column equivalent to a pressure of 0.15 MPa is.

15.3 m

25.3 m

35.3 m

45.3 m

⇒ The flow of water through the hole in the bottom of a wash basin is an example of.

steady flow

uniform flow

free vortex

forced vortex

⇒ In two dimensional flow, the flow does not take place in a curve.

True

False

Both (a) and (b)

None of these

⇒ A nozzle is generally made of.

cylindrical shape

convergent shape

divergent shape

convergent-divergent shape

⇒ If a body floating in a liquid returns back to its original position, when given a small angular displacement, the body is said to be in.

neutral equilibrium

stable equilibrium

unstable equilibrium

none of these

⇒ The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as.

path line

stream line

steak line

potential line

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

half the depth

half the breadth

twice the depth

twice the breadth

⇒ The liquid used in manometers should have.

low density

high density

low surface tension

high surface tension

⇒ The pressure of liquid at throat in a venturimeter is __________ than that at inlet.

higher

lower

both (a) and (b)

none of these.

⇒ In the manufacturing of lead shots, the property of surface tension is utilised.

Agree

Disagree

Both (a) and (b)

None of these

⇒ The tangential velocity of the water element having a free vortex is.

directly proportional to its distance from the centre

inversely proportional to its distance from the centre

directly proportional to its (distance)2 from the centre

inversely proportional to its (distance)2 from the centre

⇒ The mercuty does not wet the glass. This is due to the property of the liquid known as.

cohesion

adhesion

viscosity

surface tension

⇒ The pressure at a point 4 m below the free surface of water is.

19.24 kPa

29.24 kPa

39.24 kPa

49.24 kPa

⇒ A weir is usually made of masonry or concrete.

Yes

No

Both (a) and (b)

None of these

⇒ The factional resistance of a pipe varies approximately with __________ of the liquid.

pressure

velocity

square of velocity

cube of velocity

⇒ The Cippoletti weir is a __________ weir.

rectangular

triangular

trapezoidal

circular