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Q1. | The total pressure on the top of a closed cylindrical vessel competely filled up with a liquid is. |

A. | directly proportional to (radius)2 [Wrong Answer] |

B. | inversely proportional to (radius)2 [Wrong Answer] |

C. | directly proportional to (radius)4 [Correct Answer] |

D. | inversely proportional to (radius)4 [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :Naresh Khimani Said on 2019-04-21 06:40:41Hi !! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ Select the correct statement.

Weber's number is the ratio of inertia force to elastic force.

Weber's number is the ratio of gravity force to surface tension force.

Weber's number is the ratio of viscous force to pressure force.

Weber's number is the ratio of inertia force to surface tension force.

⇒ The viscosity of water at 20°C is.

one stoke

one centistroke

one poise

one centipoise

⇒ A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall acts at a distance __________ from the liquid surface.

H/3

H/2

2H/3

3H/4

⇒ The body will sink down if the force of buoyancy is __________ the weight of the liquid displaced.

equal to

less than

more than

none of these

⇒ In a footstep bearing, if the speed of the shaft is doubled, then the torque required to overcome the viscous resistance will be.

double

four times

eight times

sixteen times

⇒ The tendency of a liquid to uplift a submerged body, because of the upward thrust of the liquid, is known as buoyancy.

Agree

Disagree

Both (a) and (b)

None of these

⇒ 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

⇒ A submerged body is said to be in a stable equilibrium, if its centre of gravity __________ the centre of buoyancy.

coincides with

lies below

lies above

none of these.

⇒ When a body, floating in a liquid, is given a small angular displacement, it starts oscillating about a point known as.

centre of pressure

centre of gravity

centre of buoyancy

metacentre

⇒ The Euler's equation for the motion of liquids is based upon the assumption that.

the fluid is non - viscous, homogeneous and incompressible

the velocity of flow is uniform over the section

the flow is continuous, steady and along the stream line

all of the above

⇒ The volume of a fluid __________ as the pressure increases.

remains same

decreases

increases

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 flow in a pipe is turbulent when Reynold number is.

less than 2000

between 2000 and 2800

more than 2800

none of these

⇒ 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

⇒ The specific gravity has no units.

Agree

Disagree

Both (a) and (b)

None of these

⇒ In an external or internal mouthpiece, the absolute pressure head at vena contracta is zero when atmospheric pressure head is 10.3 m of water.

Correct

Incorrect

Both (a) and (b)

None of these

⇒ If a body floating in a liquid occupies a new position and remains at rest in this new position, when given a small angular displacement, The body is said to be in __________ equilibrium.

neutral

stable

unstable

None of these

⇒ According to equation of continuity,

w1a1 = w2a2

w1v1 = w2v2

a1v1 = a2v2

a1/v1 = a2/v2

⇒ A vessel of 4 m

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

4.5 kN/m3

6 kN/m3

7.5 kN/m3

10 kN/m3

⇒ A flow in which the quantity of liquid flowing per second is not constant, is called.

streamline flow

turbulent flow

steady flow

unsteady flow

⇒ 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

⇒ Turbulent flow takes place at high velocities.

Agree

Disagree

Both (a) and (b)

None of these

⇒ One cubic metre of water weighs.

100 litres

250 litres

500 litres

1000 litres

⇒ The rise of liquid along the walls of a revolving cylinder about the initial level is __________ the depression of the liquid at the axis of rotation.

same as

less than

more than

none of these.

⇒ The volume per unit mass of a liquid is called specific volume.

Yes

No

Both (a) and (b)

None of these

⇒ The value of coefficient of velocity for a sharp edged orifice __________ with the head of water.

decreases

increases

both (a) and (b)

none of these.

⇒ When a body is placed over a liquid, it is subjected to gravitational force and upthrust of the liquid.

True

False

Both (a) and (b)

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

⇒ 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

⇒ A flow in which the viscosity of fluid is dominating over the inertia force is called.

steady flow

unsteady flow

laminar flow

turbulent flow