Question 11 : If ?*V is not equal to zero, then the flow is __________
1. steady
2. unsteady
3. rotational
4. irrotational
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Question 12 : The curl of velocity equals to _______
1. velocity
2. pressure
3. vorticity
4. angular velocity
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Question 13 : The term 2*? is called as _____________
1. Velocity
2. Divergence
3. Angular velocity
4. Vorticity
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Question 14 : When an element moves in a flow field it translates, it also rotates along a streamline and in addition, its shape may undergo distortion.
1. True
2. False
3.
4.
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Question 15 : The rate of change of angular position of the body is called as _________
1. Angular displacement
2. Angular velocity
3. Angular acceleration
4. Distance
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Question 16 : Seeta used a closed curve as her start point, it will result in the ___________
1. plane
2. stream surface
3. stream line
4. stream plane
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Question 17 : Which of the following is not related to the streamlines?
1. Mass
2. Velocity
3. Fluid flow
4. Fluid domain
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Question 18 : In an unsteady flow, the equation of streamline is given by __________
1. x=y
2. y=0
3. y=0
4. y=x^t
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Question 19 : In steady state flow, the equation for streamline can be given by ________
1. x=0
2. y=0
3. x=y
4. x=-1
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Question 20 : The pathline equation is ______
1. y = x^t
2. 2ln y = (ln x)²
3. x = y
4. x = -1 + y
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