Related Questions

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 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
The ratio of exit pressure to inlet pressure for maximum mass flow rate per unit area of steam through a nozzle when steam is initially dry saturated is
A 0.6
B 0.578
C 0.555
D 0.5457
The rate of discharge through the nozzle __________ when the exit pressure is gradually reduced.
A Remains same
B Decreases
C Increases
D None of these
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
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 friction in the nozzle __________ exit velocity of steam.
A Has no effect on
B Decreases
C Increases
D None of these
When the cross-section of a nozzle increases continuously from entrance to exit, it is called a
A Divergent nozzle
B Convergent nozzle
C Convergent-divergent nozzle
D None of these
In case of a pipe exit fitted with a nozzle, the
A Conversion of kinetic head to pressure head is facilitated
B Conversion of pressure head to kinetic head is facilitated
C Power transmitted through the nozzle is maximum, when the head lost due to friction in the pipe is equal to one third of the total supply head
D Both B and C

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