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91.

The imaginary line drawn in the fluid in such a way that the tangent to any point gives the direction of motion at that point, is known as

A.	path line	B.	stream line
C.	steak line	D.	potential line

92.

The flow in a pipe or channel is said to be uniform when

A.	the liquid particles at all sections have the same velocities	B.	the liquid particles at different sections have different velocities
C.	the quantity of liquid flowing per second is constant	D.	each liquid particle has a definite path

93.

The flow in a pipe or channel is said to be non-uniform when

A.	the liquid particles at all sections have the same velocities	B.	the liquid particles at different sections have different velocities
C.	the quantity of liquid flowing per second is constant	D.	each liquid particle has a definite path

94.

A flow in which each liquid particle has a definite path, and the paths of individual particles do not cross each other, is called

A.	steady flow	B.	uniform flow
C.	streamline flow	D.	turbulent flow

95.

In flow in which each liquid particle does not have a definite path and the paths of individual particles also cross each other, is called turbulent flow.

Agree

Disagree

96.

A flow in which the quantity of liquid flowing per second is constant, is called

A.	steady	B.	stream line
C.	turbulent	D.	unsteady

97.

A flow in which the quantity of liquid flowing per second is not constant, is called

A.	streamline flow	B.	turbulent flow
C.	steady flow	D.	unsteady flow

98.

Which of the following statement is correct ?

A.	In a compressible flow, the volume of the flowing liquid changes during the flow.	B.	A flow in which the volume of the flowing liquid does not change, is called incompressible flow.
C.	When the particles rotate about their own axes while flowing, the flow is said to be rotational flow.	D.	all of the above

99.

According to equation of continuity,

A.	w1a1 = w2a2	B.	w1v1 = w2v2
C.	a1v1 = a2v2	D.	a1/v1 = a2/v2

100.

A flow through a long pipe at constant rate is called

A.	steady uniform flow	B.	steady non-uniform flow
C.	unsteady uniform flow	D.	unsteady non-uniform flow