Question is ⇒ Stream lines and path lines always coincide in case of., Options are ⇒ (A) steady flow, (B) steady flow, (C) uniform flow, (D) turbulent flow, (E) , Leave your comments or Download question paper.

Question is ⇒ Stream lines and path lines always coincide in case of., Options are ⇒ (A) steady flow, (B) steady flow, (C) uniform flow, (D) turbulent flow, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Stream lines and path lines always coincide in case of.
A.	steady flow [Correct Answer]
B.	steady flow [Wrong Answer]
C.	uniform flow [Wrong Answer]
D.	turbulent flow [Wrong Answer]
View Answer 41 -11 Explanation:- Answer : A Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ With the same cross-sectional area and immersed in same turbulent flow, the largest total drag will be on.
a circular disc of plate held normal to flow
a sphere
a cylinder
a streamlined body

⇒ The discharge of a liquid of kinematic viscosity 4 cm2/sec through a 8 cm dia-meter pipe is 3200n cm7sec. The type of flow expected is
laminar flow
transition flow
turbulent flow
not predictable from the given data

⇒ In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is.
22.5 m/sec.
33 m/sec.
40 m/sec.
90 m/sec.

⇒ In case of an airfoil, the separation of flow occurs
at the extreme rear of body
at the extreme front of body
midway between rear and front of body
any where between rear and front of body depending upon Reynolds number

⇒ The ratio of average velocity to maximum velocity for steady laminar flow in circular pipes is.
1/2
2/3
3/2
2

⇒ Pressure measured with the help of piezometer tube is
Atmospheric pressure
Gauge pressure
Absolute pressure
Vacuum pressure

⇒ The motion of air mass in a tornado is a.
free vortex motion
forced vortex motion
ree vortex at center and forced vortex outside
forced vortex at center and free vortex outside

⇒ The distance from pipe boundary, at which the turbulent shear stress is one-third die wall shear stress, is.
1/3 R
1/2 R
2/3 R
3/4R

⇒ For a flow to be turbulent in an open channel Reynold's number should not be less than
500
1000
1500
2000

⇒ Which of the following has highest coefficient of discharge ?
sharp edged orifice
venturimeter
Borda's mouthpiece running full
CipoUetti weir

⇒ In a free vortex, velocity
Decreases with radius
Increase with radius
Is constant
None of these

⇒ The horizontal to vertical side slope in case of cippoletti weir ?
1 : 1
1 : 4
1 : 2
4 : 1

⇒ When the flow in open channel is gradually varied, the flow is said to be
Steady uniform flow
Steady non-uniform flow
Unsteady uniform flow
Unsteady non-uniform flow

⇒ An aeroplane works on
Archimedes' principle
Pascal's law
Bernoulli's principle
Stoke's law

⇒ The wake
always occurs before a separation point
always occurs after a separation point
is a region of high pressure intensity
none of the above

⇒ In a Pelton-wheel, hydraulic efficiency will be maximum when speed of the buckets as compared to velocity of the jet will be
Equal
Double
Half
One fourth

⇒ When the depth of flow changes abruptly over a short distance, then the flow will be termed as
Rapidly varied flow
Unsteady flow
Gradually varied flow
Turbulent flow

⇒ Which of the following is used to measure the discharge ?
current meter
venturimeter
pitot tube
hotwire anemometer

⇒ The concept of boundary layer was first introduced by
Newton
Prandtl
Reynold
Kutter

⇒ Separation of flow occurs when.
the pressure intensity reaches a minimum
the cross-section of a channel is reduced
the boundary layer comes to rest
all of the above

⇒ The valve provided in a suction pipe is called
Float valve
Gate valve
Foot valve
Two-way valve

⇒ As compared to flat plate force of jet on a semi-circular vane will be
Half
Equal
Double
Triple

⇒ The position of center of pressure on a plane surface immersed vertically in a static mass of fluid is.
at the centroid of the submerged area
always above the centroid of the area
always below the centroid of the area
none of the above

⇒ The major loss of energy in long pipes is due to
sudden enlargement
sudden contraction
gradual contraction or enlargement
friction

⇒ Two pipe systems are said to be equivalent when
head loss and discharge are same in two systems
length of pipe and discharge are same in two systems
friction factor and length are same in two systems
length and diameter are same in two systems

⇒ Drag force is a function of
Velocity of the body
Mass density of the fluid
Projected area of the body
All of the above

⇒ For laminar flow in a pipe of circular cross-section, the Darcy's friction factor f is
directly proportional to Reynolds number and independent of pipe wall roughness
directly proportional to pipe wall roughness and independent of Reynolds number
inversely proportional to Reynolds number and indpendent of pipe wall roughness
inversely proportional to Reynolds number and directly proportional to pipe wall roughness

⇒ Equation of continuity is based on the principle of conservation of
mass
energy
momentum
none of the above

⇒ The velocity distribution for laminar flow through a circular tube
is constant over the cross-section
varies linearly from zero at walls to maximum at centre
varies parabolically with maximum at the centre
none of the above

⇒ Separation of flow occurs when
the pressure intensity reaches a minimum
the cross-section of a channel is reduced
the boundary layer comes to rest
all of the above