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Q1. | A flow in which each liquid particle does not have a definite path and the paths of individual particles also cross each other, is called turbulent flow. |

A. | Agree [Correct Answer] |

B. | Disagree [Wrong Answer] |

C. | Both (a) and (b) [Wrong Answer] |

D. | None of these [Wrong Answer] |

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**Also Read Similar Questions Below :**

⇒ The intensity of pressure on an immersed surface __________ with the increase in depth.

does not change

increases

decreases

none of these

⇒ The discharge of a depressed nappe is 6 to 7 percent __________ that of a free nappe.

less than

more than

Both (a) and (b)

none of these

⇒ A fluid having no viscosity is known as.

real fluid

ideal fluid

newtonian fluid

non-newtonian fluid

⇒ A weir is said to be broad crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.

equal to

less than

more than

none of these

⇒ Surface tension force is the product of surface tension per unit length and cross-sectional area of flow.

Correct

Incorrect

Both (a) and (b)

None of these

⇒ In case of flow through parallel pipes,

the head loss for all the pipes is same

the total discharge is equal to the sum of discharges in the various pipes

the total head loss is the sum of head losses in the various pipes

Both (A) and (B)

⇒ A uniform body 3 m long, 2 m wide and 1 m deep floats in water. If the depth of immersion is 0.6 m, then the weight of the body is.

3.53 kN

33.3 kN

35.3 kN

none of these

⇒ A fluid which obeys the Newton's law of viscosity is termed as.

real fluid

ideal fluid

newtonian fluid

non-newtonian fluid

⇒ In a broad-crested weir, the discharge is maximum if the head of water on the downstream side of weir is __________ the head of water on the upstream side of weir.

equal to

one-third

two-third

three-fourth

⇒ The magnitude of water hammer depends upon the.

elastic properties of the pipe material

elastic properties of the liquid flowing through the pipe

speed at which the valve is closed

all of the above

⇒ A flow through an expanding tube at constant rate is called.

steady uniform flow

steady non-uniform flow

unsteady uniform flow

unsteady non-uniform flow

⇒ A piezometer tube is used only for measuring,

low pressure

high pressure

moderate pressure

vacuum pressure

⇒ When the pipes are in series, the total head loss is equal to the sum of the head loss in each pipe.

Yes

No

Both (a) and (b)

None of these

⇒ 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

⇒ The coefficient of discharge for an external mouthpiece is.

0.375

0.5

0.707

0.855

⇒ The pressure of the liquid flowing through the divergent portion of a venturimeter.

remains constant

increases

decreases

depends upon mass of liquid

⇒ Turbulent flow takes place at high velocities.

Agree

Disagree

Both (a) and (b)

None of these

⇒ A flow is called super-sonic if the.

velocity of flow is very high

discharge is difficult to measure

Mach number is between 1and 6

none of these

⇒ The flow in a pipe is neither laminar nor turbulent when Reynold number is.

less than 2000

between 2000 and 2800

more than 2800

none of these

⇒ One poise is equal to.

0.1 N-s/m2

1 N-s/m2

10 N-s/m2

100 N-s/m2

⇒ A nozzle is generally made of.

cylindrical shape

convergent shape

divergent shape

convergent-divergent shape

⇒ In open channels, the specific energy is the.

total energy per unit discharge

total energy measured with respect to the datum passing through the bottom of the channel

total energy measured above the horizontal datum

kinetic energy plotted above the free surface of water

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

True

False

Both (a) and (b)

None of these

⇒ One cubic metre of water weighs.

100 litres

250 litres

500 litres

1000 litres

⇒ 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

⇒ 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 velocity corresponding to Reynold number of 2800, is called.

sub-sonic velocity

super-sonic velocity

lower critical velocity

higher critical velocity

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

True

False

Both (a) and (b)

None of these

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

*d*) is.

d/6

d/4

d/2

d

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

less than unity

unity

between 1 and 6

more than 6