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4

A liquid compressed in cylinder has a volume of 0.04 m3 at 50 kg/cm² and a volume of 0.039 m3 at 150 kg/cm². The bulk modulus of elasticity of liquid is

A. 400 kg/cm²

B. 4000 kg/cm²

C. 40 × 10⁵ kg/cm²

D. 40 × 10⁶ kg/cm²

Correct Answer :

B. 4000 kg/cm²


Related Questions

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4

Choose the wrong statement

A. Fluids are capable of flowing

B. Fluids conform to the shape of the containing vessels

C. When in equilibrium, fluids cannot sustain tangential forces

D. When in equilibrium, fluids can sustain shear forces

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4

A pipe of length more than double the diameter of orifice fitted externally or internally to the orifice is called a

A. Notch

B. Weir

C. Mouthpiece

D. Nozzle

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4

The coefficient of discharge for an external mouthpiece depends upon

A. Velocity of liquid

B. Pressure of liquid

C. Area of mouthpiece

D. Length of mouthpiece

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4

The shear stress-strain graph for a Newtonian fluid is a

A. Straight line

B. Parabolic curve

C. Hyperbolic curve

D. Elliptical

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4

Mach number is significant in

A. Supersonics, as with projectiles and jet propulsion

B. Full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.

C. Simultaneous motion through two fluids where there is a surface of discontinuity, gravity force, and wave making effects, as with ship's hulls

D. All of the above

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4

The product of mass and acceleration of flowing liquid is called

A. Inertia force

B. Viscous force

C. Gravity force

D. Pressure force

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4

When a plate is immersed in a liquid parallel to the flow, it will be subjected to a pressure __________ that if the same plate is immersed perpendicular to the flow.

A. Less than

B. More than

C. Equal to

D. None of these

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4

The discharge through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

A. 0.34 times

B. 0.67 times

C. 0.81 times

D. 0.95 times

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4

One litre of water occupies a volume of

A. 100 cm3

B. 250 cm3

C. 500 cm3

D. 1000 cm3

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4

The surface tension of mercury at normal temperature is __________ that of water.

A. Same as

B. Lower than

C. Higher than

D. None of these

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4

General energy equation holds for

A. Steady flow

B. Turbulent flow

C. Laminar flow

D. Non-uniform flow

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4

A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury?

A. 0.5

B. 0.4

C. 0.515

D. 0.5

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4

The velocity through a channel of circular section will be maximum when the depth of water is __________ the diameter of the circular channel.

A. 0.34 times

B. 0.67 times

C. 0.81 times

D. 0.95 times

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4

The flow in which each liquid particle has a definite path and their paths do not cross each other is called

A. One dimensional flow

B. Streamline flow

C. Steady flow

D. Turbulent flow

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4

The stability of a dam is checked for

A. Tension at the base

B. Overturning of the wall or dam

C. Sliding of the wall or dam

D. All of these

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4

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

A. The area is horizontal

B. The area is vertical

C. The area is inclined

D. All of the above

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4

A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.

A. Steady

B. Streamline

C. Turbulent

D. Unsteady

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4

The centre of gravity of the volume of the liquid displaced by an immersed body is called

A. Centre of gravity

B. Centre of pressure

C. Metacentre

D. Centre of buoyancy

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4

Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as

A. Lift

B. Drag

C. Stagnation pressure

D. Bulk modulus

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4

When the Mach number is between __________ the flow is called super-sonic flow.

A. 1 and 2.5

B. 2.5 and 4

C. 4 and 6

D. 1 and 6

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4

Pressure of the order of 10 torr can be measured by

A. Bourdon tube

B. Pirani Gauge

C. Micro-manometer

D. Lonisation gauge

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4

The discharge over a rectangular notch is (where b = Width of notch, and H = Height of liquid, above the sill of the notch)

A. (2/3) Cd × b × √(2gH)

B. (2/3) Cd × b × √(2g) × H

C. (2/3) Cd × b × √(2g) × H3/2

D. (2/3) Cd × b × √(2g) × H2

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4

The weight per unit volume of a liquid at a standard temperature and pressure is called

A. Specific weight

B. Mass density

C. Specific gravity

D. None of these

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4

For a perfect incompressible liquid, flowing in a continuous stream, the total energy of a particle remains the same, while the particle moves from one point to another. This statement is called

A. Continuity equation

B. Bernoulli's equation

C. Pascal's law

D. Archimedess principle

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4

Which of the following manometer has highest sensitivity?

A. U-tube with water

B. Inclined U-tube

C. U-tube with mercury

D. Micro-manometer with water

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4

The factional resistance of a pipe varies approximately with __________ of the liquid.

A. Pressure

B. Velocity

C. Square of velocity

D. Cube of velocity

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4

In a venturi-flume, the flow takes place at

A. Atmospheric pressure

B. Gauge pressure

C. Absolute pressure

D. None of these

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4

Alcohol is used in manometers because

A. It has low vapour pressure

B. It is clearly visible

C. It has low surface tension

D. It can provide longer column due to low density

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4

The force per unit length is the unit of

A. Surface tension

B. Compressibility

C. Capillarity

D. Viscosity

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4

A manometer is used to measure

A. Low pressure

B. Moderate pressure

C. High pressure

D. Atmospheric pressure