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Q1. | The bodies which have definite separation points fixed by their shapes are known as |

A. | Stream lined bodies [Correct Answer] |

B. | Bluft bodies [Wrong Answer] |

C. | Both (A) and (B) [Wrong Answer] |

D. | None of the above [Wrong Answer] |

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

⇒ In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is

22.5 m/sec.

33 m/sec.

40 m/sec.

90 m/sec.

⇒ In a semi-circular vane, the maximum efficiency will be

0.50

0.592

0.667

0.817

⇒ The power channel that extends from the intake works to the power house is called

Lead race

Head race

Diversion canal

Penstock

⇒ If there were a smaller gfavitational effect, which of the following forces do you think would alter in some respect ?

Viscous force

Archimedes uplift

Electrostatic force

Nuclear force

⇒ The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is

32 km

20 km

8 km

4 km

⇒ If a vessel containing liquid moves downward with a constant acceleration equal to 'g' then

the pressure throughout the liquid mass is atmospheric

there will be vacuum in the liquid

the pressure in the liquid mass is greater than hydrostatic pressure

none of the above

⇒ 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

⇒ Laminar sublayer is a thin boundary layer, formed just adjacent to the boundary in

Turbulent flow

Laminar flow

Transition flow

Compressible

⇒ Size of a venturimeter is specified by

pipe diameter

throat diameter

angle of diverging section

both pipe diameter as well as throat diameter

⇒ Pressure measured with the help of piezometer tube is

Atmospheric pressure

Gauge pressure

Absolute pressure

Vacuum pressure

⇒ The value of friction factor 'f' for smooth pipes for Reynolds number 106 is approximately equal to

0.1

0.01

0.001

0.0001

⇒ Two stretched membranes of area 2 cm

^{2}and 3 cm

^{2}are placed in a liquid at the same depth. The ratio of the pressure on them is

1 : 1

2 : 3

3 : 2

2

^{2}: 3

^{2}

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

Nappe

Crest

Height of weir/notch

Sill

⇒ In a broad crested weir, width of crest of the weir will be

More than 0.5 H

Less than 0.5 H

Both (A) and (B)

None of the two

⇒ For a flow to be turbulent in an open channel Reynold's number should not be less than

500

1000

1500

2000

⇒ Newton's law of viscosity relates.

intensity of pressure and rate of angular deformation

shear stress and rate of angular deformation

shear stress, viscosity and temperature

viscosity and rate of angular deformation

⇒ Drag force is a function of

Velocity of the body

Mass density of the fluid

Projected area of the body

All of the above

⇒ Coefficient of velocity of venturimeter

is independent of Reynolds number

decreases with higher Reynolds number

is equal to the coefficient of discharge of venturimeter

none of the above

⇒ The unit of kinematic viscosity is.

gm/cm-sec2

dyne-sec/cm2

gm/cm2-sec

cm2/sec

⇒ The component of resultant fluid dynamic force, in the flow direction is called

Drag force

Lift force

Viscous force

None of these

⇒ Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is

less than d

between d and 1.5 d

between 1.5 d and 2d

greater than 2d

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

mass

energy

momentum

none of the above

⇒ Specific speed of Francis turbine varies in between

10 to 35

10 to 50

60 to 400

300 to 1000

⇒ When an ideal fluid flows past a sphere

Total drag is zero

Minimum pressure occurs at rear stagnation point

Minimum pressure occurs at front stagnation point

None of the above

⇒ The eddy viscosity for turbulent flow is.

a function of temperature only

a physical property of the fluid.

dependent on the flow

independent of the flow

⇒ 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

⇒ When Froude's number is more than 1, then the flow is termed as

Critical flow

Subcritical flow

Streaming flow

Shooting flow

⇒ If the elevation of hydraulic grade line at the junction of three pipes is above the elevation of reservoirs B and C and below reservoir A, then the direction of flow will be.

from reservoir A to reservoirs B and C

from reservoir B to reservoirs C and A

from reservoir C to reservoirs A and B

unpredictable

⇒ Surge wave in a rectangular channel is an example of

i) steady flow

ii) unsteady flow

iii) uniform flow

iv) non-uniform flow

The correct answer is

(i) and (iii)

(ii) and (iii)

(i) and (:v)

(ii) and (iv)

⇒ An ideal fluid is.

one which obeys Newton's law of viscosity

frictionless and incompressible

very viscous

frictionless and compressible