Venturimeter and orificemeter measures the __________ of the fluid.

Power loss in an orificemeter is __________ that in a venturimeter.

A

Less than

B

Same as

C

More than

D

Data insufficient, cannot be predicted

A venturimeter measures the

A

Velocity head

B

Pressure

C

Point velocity

D

None of these

Vena-contracta pressure tapping is at a distance __________ from the position of an orificemeter fitted in a pipe of internal diameter 'd'

A

d

B

0.5d

C

2d

D

4d

The co-efficient of discharge of an orificemeter is a function of

A

Reynolds number at the orifice

B

Ratio of orifice dia to pipe dia

C

Both A and B

D

None of the above parameters, and has a constant value of 0.61

The most serious disadvantage of an orificemeter is that

A

It is not very accurate

B

It is very costly

C

Most of the pressure drop is not recoverable

D

It is not suitable for measuring gas flow

Vena-contracta formed during flow of a liquid through an orificemeter has

A

Minimum liquid cross-section

B

More diameter compared to orifice diameter

C

Minimum velocity of fluid stream

D

None of these

The discharge co-efficient for an orificemeter does not depend upon the

A

Pipe length

B

Ratio of pipe diameter to orifice diameter

C

Type of orifice & the Reynolds number

D

Pipe diameter

Location of vena-contracta in an orificemeter does not depend upon the

A

Type of orifice

B

Density, viscosity & compressibility of the fluid

C

Ratio of pipe diameter to orifice diameter

D

Pipe roughness

With increase in the ratio of orifice diameter to pipe diameter in case of an orificemeter, the overall pressure loss

A

Decreases

B

Increases

C

Remains constant

D

Increases linearly

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

Venturimeter and orificemeter measures the __________ of the fluid.

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