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Q1. | Kinematic viscosity is the product of dynamic viscosity and the density of the liquid. |

A. | Yes [Wrong Answer] |

B. | No [Correct Answer] |

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

D. | None of these [Wrong Answer] |

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**Also Read Similar Questions Below :**

⇒ One poise is equal to.

0.1 N-s/m2

1 N-s/m2

10 N-s/m2

100 N-s/m2

⇒ The specific weight is also known as weight density.

Correct

Incorrect

Both (a) and (b)

None of these

⇒ The mass per unit volume of a liquid at a standard temperature and pressure is called.

specific weight

mass density

specific gravity

none of these

⇒ The hydraulic gradient line may be above or below the centre line of the pipe.

True

False

Both (a) and (b)

None of these

⇒ An average value of coefficient of velocity is.

0.62

0.76

0.84

0.97

⇒ The Newton's law of resistance is based on the assumption that the.

planes of the body are completely smooth

space around the body is completely filled with the fluid

fluid particles do not exert any influence on one another

all of the above

⇒ An orifice is said to be large, if.

the size of orifice is large

the velocity of flow is large

the available head of liquid is more than 5 times the height of orifice

the available head of liquid is less than 5 times the height of orifice

⇒ When the pressure intensity at a point is less than the local atmospheric pressure, then the difference of these two pressures is called vacuum pressure.

Agree

Disagree

Both (a) and (b)

None of these

⇒ 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

⇒ One cubic metre of water weighs.

100 litres

250 litres

500 litres

1000 litres

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

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

1%

1.5%

2%

2.5%

⇒ A flow whose streamline is represented by a straight line, is called __________ dimensional flow.

one

two

three

four

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

N-m/s

N-s/m2

m2/s

N-m

⇒ A manometer is used to measure.

atmospneric 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

⇒ Poise is the unit of viscosity in C.G.S. system of units.

Agree

Disagree

Both (a) and (b)

None of these

⇒ When a cylindrical vessel containing liquid is revolved about its vertical axis at a constant angular velocity, the pressure.

varies as the square of the radial distance

increases linearly as its radial distance

increases as the square of the radial distance

decreases as the square of the radial distance

⇒ The flow in a pipe is turbulent when Reynold number is.

less than 2000

between 2000 and 2800

more than 2800

none of these

⇒ Stoke is the unit of.

kinematic viscosity in C. G. S. units

kinematic viscosity in M. K. S. units

dynamic viscosity in M. K. S. units

dynamic viscosity in S. I. units

⇒ The sheet of water flowing over a notch or a weir is known as.

sill or crest

nappe or vein

orifice

none of these

⇒ The reciprocal of Euler's number is called Newton number.

Yes

No

Both (a) and (b)

None of these

⇒ 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 purpose of a surge tank is.

to control the pressure variations due to rapid changes in the pipe line flow

to eliminate water hammer possibilities

to regulate flow of water to turbines by providing necessary retarding head of water

all of the above

⇒ 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

⇒ A weir is said to be narrow-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

⇒ The maximum discharge over a broad crested weir is.

0.384 Cd x L x H1/2

0.384 Cd x L x H3/2

1.71 Cd x L x H1/2

1.71 Cd x L x H3/2

⇒ The coefficient of viscosity may be determined by.

capillary tube method

orifice type viscometer

rotating cylinder method

all of these

⇒ The value of coefficient of discharge is __________ the value of coefficient of velocity.

less than

same as

more than

Both (a) and (b)

⇒ 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

⇒ The unit of surface tension is.

N/m

N/m2

N/m3

N-m