A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

Question

A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

A. 0.83

B. 0.6

C. 0.4

D. 0.3

Correct Answer :

B. 0.6

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When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of

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The property by virtue of which a liquid opposes relative motion between its different layers is called

Discuss this answer

The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

A. 1/R_N

B. 4/R_N

C. 16/R_N

D. 64/R_N

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The viscosity of a liquid __________ its rate of flow through a hole in a vessel.

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A flow through a long pipe at decreasing rate is called __________ uniform flow.

A. Steady

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The difference of pressure between the inside and outside of a liquid drop is

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An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.

A. Free

C. Full

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When a body is placed over a liquid, it will float if

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

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A vessel of 4 m³ contains oil which weighs 30 kN. The specific weight of the oil is

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The speed of sound in a ideal gas varies directly as its

Discuss this answer

The increase of temperature results in

Discuss this answer

An ideal flow of any fluid must satisfy

Discuss this answer

A venturi-flume is used to measure

Discuss this answer

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 per unit length is (where w = Specific weight of liquid, and H = Height of liquid)

A. wH

B. wH/2

C. wH²/2

D. wH²/3

Discuss this answer

The dynamic viscosity of the liquid __________ with rise in temperature.

Discuss this answer

Flow of water in a pipe about 3 metres in diameter can be measured by

Discuss this answer

The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

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In a forced vortex, the velocity of flow everywhere within the fluid is

C. Zero

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The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)

A. wH/2

B. wH

C. wH²/2

D. wH²/4

Discuss this answer

The product of mass and acceleration of flowing liquid is called

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

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A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is

Discuss this answer

An ideal flow of any fluid must fulfil the following

Discuss this answer

The time oscillation of a floating body with increase in meatcentric height will be

A. Same

B. Higher

C. Lower

Discuss this answer

The liquid used in manometers should have

Discuss this answer

Steady flow occurs when

Discuss this answer

The Francis formula for the discharge over Cipoletti weir is

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When the Venturimeter is inclined, then for a given flow it will show __________ reading.

A. Same

B. More

C. Less

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A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

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Answer 1

A. A triangle

Answer 2

B. A paraboloid

Answer 3

C. An ellipse

Answer 4

D. None of these

Answer 5

A. Surface tension

Answer 6

B. Coefficient of viscosity

Answer 7

C. Viscosity

Answer 8

D. Osmosis

Answer 9

A. Effects

Answer 10

B. Does not effect

Answer 11

C. Both A and B

Answer 12

D. None of these

Answer 13

B. Unsteady

Answer 14

C. Both A and B

Answer 15

D. None of these

Answer 16

A. p = T × r

Answer 17

B. p = T/r

Answer 18

C. p = T/2r

Answer 19

D. p = 2T/r

Answer 20

B. Partially

Answer 21

D. None of these

Answer 22

A. Gravitational force is equal to the up-thrust of the liquid

Answer 23

B. Gravitational force is less than the up-thrust of the liquid

Answer 24

C. Gravitational force is more than the up-thrust of the liquid

Answer 25

D. None of the above

Answer 26

A. Streamline flow

Answer 27

B. Turbulent flow

Answer 28

C. Steady flow

Answer 29

D. Unsteady flow

Answer 30

A. 4.5 kN/m³

Answer 31

B. 6 kN/m³

Answer 32

C. 7.5 kN/m³

Answer 33

D. 10 kN/m³

Answer 34

A. Absolute temperature

Answer 35

B. Temperature

Answer 36

C. Density

Answer 37

D. Modulus of elasticity

Answer 38

A. Increase in viscosity of gas

Answer 39

B. Increase in viscosity of liquid

Answer 40

C. Decrease in viscosity of gas

Answer 41

D. Decrease in viscosity of liquid

Answer 42

A. Pascal law

Answer 43

B. Newton's law of viscosity

Answer 44

C. Boundary layer theory

Answer 45

D. Continuity equation

Answer 46

A. Pressure of liquid

Answer 47

B. Discharge of liquid

Answer 48

C. Pressure difference between two points in a channel

Answer 49

D. Pressure difference between two points in a pipe

Answer 50

A. Remain unaffected

Answer 51

B. Increases

Answer 52

C. Decreases

Answer 53

D. None of these

Answer 54

A. Orifice plate

Answer 55

B. Venturimeter

Answer 56

C. Rotameter

Answer 57

D. Pitot tube

Answer 58

A. The area is horizontal

Answer 59

B. The area is vertical

Answer 60

C. The area is inclined

Answer 61

D. All of the above

Answer 62

A. Maximum

Answer 63

B. Minimum

Answer 64

D. Nonzero finite

Answer 65

A. Inertia force

Answer 66

B. Viscous force

Answer 67

C. Gravity force

Answer 68

D. Pressure force

Answer 69

A. Equal to

Answer 70

B. Less than

Answer 71

C. More than

Answer 72

D. None of these

Answer 73

A. 2.89 kN

Answer 74

B. 8.29 kN

Answer 75

C. 9.28 kN

Answer 76

D. 28.9 kN

Answer 77

A. Newton's law of motion

Answer 78

B. Newton's law of viscosity

Answer 79

C. Pascal' law

Answer 80

D. Continuity equation

Answer 81

D. Lower/higher depending on weight of body

Answer 82

A. Low density

Answer 83

B. High density

Answer 84

C. Low surface tension

Answer 85

D. High surface tension

Answer 86

A. The direction and magnitude of the velocity at all points are identical

Answer 87

B. The velocity of successive fluid particles, at any point, is the same at successive periods of time

Answer 88

C. The magnitude and direction of the velocity do not change from point to point in the fluid

Answer 89

D. The fluid particles move in plane or parallel planes and the streamline patterns are identical in each plane

Answer 90

A. 1.84 LH^1/2

Answer 91

B. 1.84 LH

Answer 92

C. 1.84 LH^3/2

Answer 93

D. 1.84 LH^5/2

Answer 94

D. None of these

Answer 95

A. 14π R^1/2/15C_d × a √(2g)

Answer 96

B. 14π R^3/2/15C_d × a √(2g)

Answer 97

C. 14π R^5/2/15C_d × a √(2g)

Answer 98

D. 14π R^7/2/15C_d × a √(2g)

A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

Correct Answer :

Show all Fluid Mechanics MCQ

Related Questions

When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of

The property by virtue of which a liquid opposes relative motion between its different layers is called

The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

The viscosity of a liquid __________ its rate of flow through a hole in a vessel.

A flow through a long pipe at decreasing rate is called __________ uniform flow.

The difference of pressure between the inside and outside of a liquid drop is

An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.

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The dynamic viscosity of the liquid __________ with rise in temperature.

Flow of water in a pipe about 3 metres in diameter can be measured by

The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

In a forced vortex, the velocity of flow everywhere within the fluid is

The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)

The product of mass and acceleration of flowing liquid is called

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A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is

An ideal flow of any fluid must fulfil the following

The time oscillation of a floating body with increase in meatcentric height will be

The liquid used in manometers should have

Steady flow occurs when

The Francis formula for the discharge over Cipoletti weir is

When the Venturimeter is inclined, then for a given flow it will show __________ reading.

A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

Also checkout

A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is

Correct Answer :

Show all Fluid Mechanics MCQ

Related Questions

When a cylindrical vessel containing liquid is resolved, the surface of the liquid takes the shape of

The property by virtue of which a liquid opposes relative motion between its different layers is called

The loss of head due to friction in a pipe of uniform diameter in which a viscous flow is taking place, is (where RN = Reynold number)

The viscosity of a liquid __________ its rate of flow through a hole in a vessel.

A flow through a long pipe at decreasing rate is called __________ uniform flow.

The difference of pressure between the inside and outside of a liquid drop is

An internal mouthpiece is said to be running __________ if the length of the mouthpiece is more than three times the diameter of the orifice.

When a body is placed over a liquid, it will float if

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

A vessel of 4 m3 contains oil which weighs 30 kN. The specific weight of the oil is

The speed of sound in a ideal gas varies directly as its

The increase of temperature results in

An ideal flow of any fluid must satisfy

A venturi-flume is used to measure

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 per unit length is (where w = Specific weight of liquid, and H = Height of liquid)

The dynamic viscosity of the liquid __________ with rise in temperature.

Flow of water in a pipe about 3 metres in diameter can be measured by

The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the Centroid, if

In a forced vortex, the velocity of flow everywhere within the fluid is

The water pressure per metre length on a vertical masonry wall of dam is (where w = Specific weight of the liquid, and H = Height of the liquid)

The product of mass and acceleration of flowing liquid is called

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

A water tank contains 1.3 m deep water. The pressure exerted by the water per metre length of the tank is

An ideal flow of any fluid must fulfil the following

The time oscillation of a floating body with increase in meatcentric height will be

The liquid used in manometers should have

Steady flow occurs when

The Francis formula for the discharge over Cipoletti weir is

When the Venturimeter is inclined, then for a given flow it will show __________ reading.

A hemispherical tank of radius (R) has an orifice of cross-sectional area (a) at its bottom and is full of liquid. The time required to empty the tank completely is

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