With diminishing cross-sectional area in case of subsonic flow in a converging nozzle, the

The energy loss in flow through ven-turimeter is less than that through flow nozzle, because in case of a flow nozzle, the

A

Length is shorter

B

Throat diameter is more

C

Sudden expansion of flow in the downstream occurs

D

Distance between the throat and the inlet is more

When the back pressure of a nozzle is below the designed value of pressure at exit of nozzle, the nozzle is said to be

A

Choked

B

Under-damping

C

Over-damping

D

None of these

When the nozzle operates with the maximum mass flow, the nozzle is said to be

A

Choked

B

Under-damping

C

Over-damping

D

None of these

The velocity for subsonic flow in a pipeline

A

Increases in the downstream direction

B

Is constant

C

Decreases in the downstream direction

D

Is independent of the area of flow

A nozzle is said to be a divergent nozzle

A

When the cross-section of the nozzle increases continuously from entrance to exit

B

When the cross-section of the nozzle decreases continuously from entrance to exit

C

When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit

D

None of the above

A nozzle is said to be a convergent nozzle

A

When the cross-section of the nozzle increases continuously from entrance to exit

B

When the cross-section of the nozzle decreases continuously from entrance to exit

C

When the cross-section of the nozzle first decreases from entrance to throat and then increases from its throat to exit

D

None of the above

The discharge of steam in a convergent-divergent nozzle __________ after the throat (i.e. in the divergent portion of the nozzle)

A

Remains constant

B

Decreases

C

Increases

D

None of these

When the cross-section of a nozzle __________ continuously from entrance to exit, it is called a convergent nozzle.

A

Increases

B

Decreases

C

Remain same

D

None of these

The supersaturated flow of steam through a nozzle as compared to a stable flow, the available heat drop

A

Remains the same

B

Increases

C

Decreases

D

Is unpredictable

The ratio of exit pressure to inlet pressure of maximum mass flow rate per area of steam through a nozzle when steam is initially superheated is

A

0.555

B

0.578

C

0.5457

D

0.6

With diminishing cross-sectional area in case of subsonic flow in a converging nozzle, the

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