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Q1. | The pressure intensity in kg/cm^{2} at any point
in a liquid is |

A. | W [Wrong Answer] |

B. | Wh [Correct Answer] |

C. | W/h [Wrong Answer] |

D. | h/W [Wrong Answer] |

View Answer
Explanation:-
Answer : BDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ The horizontal component of force on a curved surface is equal to the.

product of pressure intensity at its centroid and area

force on a vertical projection of the curved surface

weight of liquid vertically above the curved surface

force on the horizontal projection of the curved surface

⇒ The relationship dp/dx = dz/dy is valid for

Irrotational flow

Non-uniform flow

Uniform flow

Unsteady flow

⇒ The pitot tube is used to measure.

velocity at stagnation point

stagnation pressure

static pressure

dynamic pressure

⇒ The discharge through a V- notch varies as

H1/2

H3'2

H5/2

H5'4 where H is head.

⇒ When the velocity distribution is uniform over the cross-section, the correction factor for momentum is

0

1

4/3

2

⇒ Ay between two stream lines represents.

velocity

discharge

head

pressure

⇒ The basic equation which governs the motion of incompressible viscous fluid in laminar motion is called as

Hagen-Poiseullie equation

Stokes equation

Darcy-Weisbach equation

Navier-Stokes equation

⇒ Separation of flow occurs when

the pressure intensity reaches a minimum

the cross-section of a channel is reduced

the boundary layer comes to rest

all of the above

⇒ When a liquid rotates at a constant angular velocity about a vertical axis as a rigid body, the pressure intensity varies.

linearly with radial distance

as the square of the radial distance

inversely as the square of the radial distance

inversely as the radial distance

⇒ Manometer is used to measure

Velocity of liquid

Atmospheric pressure

Pressure in pipe and channels

Pressure in venturimeter

⇒ The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as

center of gravity

center of buoyancy

center of pressure

metacentre

⇒ Select the incorrect statement.

The pressure intensity at vena contracta is atmospheric.

Contraction is least at vena contracta.

Stream lines are parallel throughout the jet at vena contracta.

Coefficient of contraction is always less than one.

⇒ The depth 'd' below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be

0.423 D

0.577 D

0.223 D

0.707 D

⇒ The ratio of average velocity to maximum velocity for steady laminar flow in circular pipes is.

1/2

2/3

3/2

2

⇒ The point at which the resultant pressure on an immersed surface acts is known as

Centre of gravity

Centre of depth

Centre of pressure

Centre of immersed surface

⇒ The generation of hydroelectric power as compared to power generated by coal, oil etc. is

Cheaper

Costlier

At par

Can not compare

⇒ The wake.

always occurs before a separation point

always occurs after a separation point

is a region of high pressure intensity

none of the above

⇒ With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on

a circular disc of plate held normal to flow

a sphere

a cylinder

a streamlined body

⇒ An ideal flow of any fluid must fulfil the following

Newton's law of viscosity

Newton's law of motion

Boundary Layer theory

Continuity equation

⇒ The motion of air mass in a tornado is a

free vortex motion

forced vortex motion

free vortex at center and forced vortex outside

forced vortex at center and free vortex outside

⇒ When a loaded boat enters into the sea from a river. it rises because

There is more water in sea than in river

Sea water is denser than river

There is difference of temperature

Sea is deeper than river

⇒ In venturimeter, the ratio between throat diameter and pipe diameter is generally adopted as

1 : 2

1 : 4

1 : 8

2 : 11

⇒ Stanton diagram is a.

log-log plot of friction factor against Reynolds number

log-log plot of relative roughness against Reynolds number

semi-log plot of friction factor against Reynolds number

semi-log plot of friction factor against relative roughness

⇒ Which of the following is an incorrect statement ?

Coefficient of contraction of a venturimeter is unity.

Flow nozzle is cheaper than venturimeter but has higher energy loss.

Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined.

None of the above statement is correct.

⇒ Equation of continuity is based on the principle of conservation of

mass

energy

momentum

none of the above

⇒ The Prartdtl mixing length is.

zero at the pipe wall

maximum at the pipe wall

independent of shear stress

none of the above

⇒ Size of a venturimeter is specified by.

pipe diameter

throat diameter

angle of diverging section

both pipe diameter as well as throat diameter

⇒ A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is.

5kN

lOkN

15 kN

20 kN

⇒ Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by.

5%

10%

15%

20%

⇒ The hydraulic grade line is

always above the centre line of pipe

never above the energy grade line

always sloping downward in the direction of flow

all of the above