Home
Current Affairs January 2024

What is the correct answer?

4

The coefficient of venturi-flume, generally, lies between

A. 0.3 to 0.45

B. 0.50 to 0.75

C. 0.75 to 0.95

D. 0.95 to 1.0

Correct Answer :

D. 0.95 to 1.0


Related Questions

What is the correct answer?

4

If mercury in a barometer is replaced by water, the height of 3.75 cm of mercury will be following cm of water

A. 51 cm

B. 50 cm

C. 52 cm

D. 52.2 cm

What is the correct answer?

4

The top of the weir over which the water flows is known as

A. Sill or crest

B. Nappe or vein

C. Orifice

D. None of these

What is the correct answer?

4

Bernoulli's equation is applied to

A. Venturimeter

B. Orifice meter

C. Pitot tube

D. All of these

What is the correct answer?

4

The velocity at which the laminar flow stops, is known as

A. Velocity of approach

B. Lower critical velocity

C. Higher critical velocity

D. None of these

What is the correct answer?

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

What is the correct answer?

4

The unit of viscosity is

A. Metres² per sec

B. kg-sec/metre

C. Newton-sec per metre²

D. Newton-sec per meter

What is the correct answer?

4

The divergent portion of a Venturimeter is made longer than convergent portion in order to

A. Avoid the tendency of breaking away the stream of liquid

B. To minimise frictional losses

C. Both (A) and (B)

D. None of these

What is the correct answer?

4

The siphon will work satisfactorily, if the minimum pressure in the pipe is __________ vapour pressure of liquid.

A. Equal to

B. Less than

C. More than

D. None of these

What is the correct answer?

4

The region between the separation streamline and the boundary surface of the solid body is known as

A. Wake

B. Drag

C. Lift

D. Boundary layer

What is the correct answer?

4

An ideal flow of any fluid must satisfy

A. Pascal law

B. Newton's law of viscosity

C. Boundary layer theory

D. Continuity equation

What is the correct answer?

4

Froude number is significant in

A. Supersonics, as with projectile 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 forces, and wave making effect as with ship's hulls

D. All of the above

What is the correct answer?

4

The pressure of the liquid flowing through the divergent portion of a Venturimeter

A. Remains constant

B. Increases

C. Decreases

D. Depends upon mass of liquid

What is the correct answer?

4

The depth of the centre of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is

A. 2.4 m

B. 3.0 m

C. 4.0 m

D. 5.0 m

What is the correct answer?

4

Coefficient of resistance is the ratio of

A. Actual velocity of jet at vena-contracta to the theoretical velocity

B. Area of jet at vena-contracta to the area of orifice

C. Loss of head in the orifice to the head of water available at the exit of the orifice

D. Actual discharge through an orifice to the theoretical discharge

What is the correct answer?

4

The force present in a moving liquid is

A. Inertia force

B. Viscous force

C. Gravity force

D. All of these

What is the correct answer?

4

An average value of coefficient of velocity is

A. 0.62

B. 0.76

C. 0.84

D. 0.97

What is the correct answer?

4

Principle of similitude forms the basis of

A. Comparing two identical equipments

B. Designing models so that the result can be converted to prototypes

C. Comparing similarity between design and actual equipment

D. Hydraulic designs

What is the correct answer?

4

Ratio of inertia force to surface Jension is known as

A. Mach number

B. Froude number

C. Reynoldss number

D. Weber's number

What is the correct answer?

4

A flow through an expanding tube at constant rate is called

A. Steady uniform flow

B. Steady non-uniform flow

C. Unsteady uniform flow

D. Unsteady non-uniform flow

What is the correct answer?

4

The horizontal component of buoyant force is

A. Negligible

B. Same as buoyant force

C. Zero

D. None of the above

What is the correct answer?

4

The volumetric change of the fluid caused by a resistance is known as

A. Volumetric strain

B. Volumetric index

C. Compressibility

D. Adhesion

What is the correct answer?

4

The length of the divergent cone in a Venturimeter is __________ that of the convergent cone.

A. Equal to

B. Double

C. Three to four times

D. Five to six times

What is the correct answer?

4

The pressure of fluid due to hammer blow is

A. Directly proportional to density of fluid

B. Inversely proportional to density of fluid

C. Directly proportional to (density)1/2 of fluid

D. Inversely proportional to (density)1/2 of fluid

What is the correct answer?

4

The equation of continuity holds good when the flow

A. Is steady

B. Is one dimensional

C. Velocity is uniform at all the cross sections

D. All of the above

What is the correct answer?

4

A fluid in equilibrium can't sustain

A. Tensile stress

B. Compressive stress

C. Shear stress

D. Bending stress

What is the correct answer?

4

The magnitude of water hammer depends upon the

A. Elastic properties of the pipe material

B. Elastic properties of the liquid flowing through the pipe

C. Speed at which the valve is closed

D. All of the above

What is the correct answer?

4

In a depressed nappe

A. The pressure below the nappe is atmospheric

B. The pressure below the nappe is negative

C. The pressure above the nappe is atmospheric

D. The pressure above the nappe is negative

What is the correct answer?

4

If no resistance is encountered by displacement, such a substance is known as

A. Fluid

B. Water

C. Gas

D. Ideal fluid

What is the correct answer?

4

The stress-strain relation of the Newtonian fluid is

A. Linear

B. Parabolic

C. Hyperbolic

D. Inverse type

What is the correct answer?

4

In order that flow takes place between two points in a pipeline, the differential pressure between these points must be more than

A. Frictional force

B. Viscosity

C. Surface friction

D. All of the above