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Q1. | The Francis formula for the discharge over Cippoletti weir is. |

A. | 1.84 LH1/2 [Wrong Answer] |

B. | 1.84 LH [Wrong Answer] |

C. | 1.84 LH3/2 [Correct Answer] |

D. | 1.84 LH5/2 [Wrong Answer] |

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

⇒ The siphon will work satisfactorily, if the minimum pressure in the pipe is __________ vapour pressure of liquid.

equal to

less than

more than

none of these

⇒ Coefficient of velocity is defined as the ratio of.

actual velocity of jet at vena contracta to the theoretical velocity

area of jet at vena contracta to the area of orifice

actual discharge through an orifice to the theoretical discharge

none of the above

⇒ The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where

*R*= Reynold number).

_{N}1/RN

4/RN

16/RN

64/RN

⇒ A nozzle is generally made of.

cylindrical shape

convergent shape

divergent shape

convergent-divergent shape

⇒ 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

⇒ The hydraulic mean depth for a circular pipe of diameter (

*d*) is.

d/6

d/4

d/2

d

⇒ A fluid having no viscosity is known as.

real fluid

ideal fluid

newtonian fluid

non-newtonian fluid

⇒ 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.

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none of these

⇒ The hydraulic gradient line is always parallel to the centre line of the pipe.

Correct

Incorrect

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None of these

⇒ The force of buoyancy is always __________ the weight of the liquid displaced by the body.

equal to

less than

more than

none of these.

⇒ The force per unit length is the unit of.

surface tension

compressibility

capillarity

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⇒ An error of 1% in measuring head over the crest of the notch (

*H*) will produce an error of __________ in discharge over a triangular notch,

1%

1.5%

2%

2.5%

⇒ A flow is called hyper-sonic, if the Mach number is.

less than unity

unity

between 1 and 6

none of these

⇒ Coefficient of resistance is the ratio of.

actual velocity of jet at vena contracta to the theoretical velocity

area of jet at vena contracta to the area of orifice

loss of head in the orifice to the head of water available at the exit of the orifice

actual discharge through an orifice to the dieoretical discharge

⇒ In an internal mouthpiece, if the jet after contraction expands and fills up the whole mouthpiece, then the mouthpiece is said to be running free.

True

False

Both (a) and (b)

None of these

⇒ The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called.

density of liquid

specific gravity of liquid

compressibility of liquid

surface tension of liquid

⇒ Froude's number is the ratio of inertia force to.

pressure force

elastic force

gravity force

surface tension force

⇒ The ratio of the inertia force to the gravity force is called Froude number.

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Disagree

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⇒ In a depressed nappe.

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the pressure above the nappe is atmospheric

the pressure above the nappe is negative

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low pressure

moderate pressure

high pressure

atomospheric pressure

⇒ Select the wrong statement.

An equivalent pipe is treated as an ordinary pipe for all calculations

The length of an equivalent pipe is equal to that of a compound pipe

The discharge through an equivalent pipe is equal to that of a compound pipe

The diameter of an equivalent pipe is equal to that of a compound pipe

⇒ The highest efficiency is obtained with a channel of __________ section.

circular

square

rectangular

trapezoidal

⇒ The discharge in an open channel corresponding to critical depth is.

zero

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none of these.

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⇒ A vessel of 4 m

^{3}contains an oil which weighs 30 kN. The specific weight of the oil is.

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0.01

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1

⇒ The property of a liquid which controls its rate of flow is called viscosity.

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False

Both (a) and (b)

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⇒ The flow in a pipe is laminar, when Reynold number is less than 2000.

True

False

Both (a) and (b)

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⇒ The discharge over a triangular notch is.

inversely proportional to H3/2

directly proportional to H3/2

inversely proportional to H5/2

directly proportional to H5/2

⇒ Newton's law of viscosity is a relationship between.

pressure, velocity and temperature

shear stress and rate of shear strain

shear stress and velocity

rate of shear strain and temperature