Question is ⇒ The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is, Options are ⇒ (A) d > m > e, (B) d > e > m, (C) e > m > d, (D) e > d > m, (E) , Leave your comments or Download question paper.

Question is ⇒ The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is, Options are ⇒ (A) d > m > e, (B) d > e > m, (C) e > m > d, (D) e > d > m, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The correct relationship among displacement thickness d, momentum thickness m and energy thickness e is
A.	d > m > e [Wrong Answer]
B.	d > e > m [Wrong Answer]
C.	e > m > d [Wrong Answer]
D.	e > d > m [Correct Answer]
View Answer 49 -130 Explanation:- Answer : D Discuss it below : Himanshu Gupta Said on 2019-08-24 07:49:43 Sequence : B > D > E > M. Kehomong Lim Said on 2019-05-01 13:49:16 B Shekhpuria channel Said on 2019-03-11 10:17:33 correct answer is B Mahesh Ramachandran Said on 2018-11-25 08:30:31 correct is b Tushar Patel Said on 2018-11-22 03:23:45 Correct Answer should be B Shriram Bairwa Said on 2018-11-01 07:06:40 Correct B Prashant Rajput Said on 2018-04-25 03:46:42 Ans should be option b. Boundary layer thickness > displacement thickness > energy thickness > momentum thickness !! 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 :

⇒ If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is.
less than 1
between 1 and 100
160
200

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

⇒ For a turbulent flow, the Reynold's number should be more than
4000
2700
2000
500

⇒ Liquids
Have no shape
Can not be compressed
Both (A) and (B)
None of the above

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

⇒ If the Froude's number of flow in an open channel is more than 1.0 then the flow is said to be
Critical
Shooting
Streaming
Transitional

⇒ An ice cube containing a lead piece in it is floating in a glass of water. As ice melts the water level will
Fall
Rise
Remain stationary
None of the above

⇒ 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

⇒ A body of weight W₁ displaces an amount of water W. When floating
W₁ > W₂
W₁ < W₂
W₁ = W₂
A, B. C, any

⇒ Select the incorrect statement.
The pressure intensity at vena contracta is atmospheric.
Contraction is least at vena contracta.
Stream lines are parallel throughout the jet at vena contracta.
Coefficient of contraction is always less than one.

⇒ If the elevation of hydraulic grade line at the junction of three pipes is above the elevation of reservoirs B and C and below reservoir A, then the direction of flow will be
from reservoir A to reservoirs B and C
from reservoir B to reservoirs C and A
from reservoir C to reservoirs A and B
unpredictable

⇒ Pelton-wheel is a
Tangential flow turbine
Radial flow turbine
Mixed flow turbine
Axial flow turbine

⇒ 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.

⇒ 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

⇒ A floating body is said to be in a state of stable equilibrium
when its metacentric height is zero
when the metacentre is above the centre of gravity
when the metacentre is below the centre of gravity
only when its centre of gravity is below its centre of buoyancy

⇒ The pressure intensity in kg/cm² at any point in a liquid is
W
Wh
W/h
h/W

⇒ 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

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

⇒ An open cubical tank of 2 m side is filled with water. If the tank is rotated with an acceleration such that half of the water spills out, then the acceleration is equal to
g/3
g/2
2g/3
g

⇒ The horse power transmitted through a pipe is maximum when the ratio of loss of head due to friction and total head supplied is
1/3
1/4
1/2
2/3

⇒ In a tank or channel, notch is provided measure
Velocity
Pressure
Discharge
Static energy

⇒ 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 fluid flow the line of constant piezometric head passes through two points which have the same
Elevation
Pressure
Velocity
Velocity potential

⇒ Select the incorrect statement.
The pressure intensity at vena contracta is atmospheric.
Contraction is least at vena contracta.
Stream lines are parallel throughout the jet at vena contracta.
Coefficient of contraction is always less than one.

⇒ When an ideal fluid flows past a sphere,
highest intensity of pressure occurs around the circumference at right angles to flow
lowest pressure intensity occurs at front stagnation point
lowest pressure intensity occurs at rear stagnation point
total drag is zero

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

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

⇒ A valve is suddenly closed in a water main in wl.ich the velocity is 1 m/sec and velocity of pressure wave is 981 m/ sec. The inertia head at the valve will be
1 m
10m
100m
none of the above

⇒ Square root of the ratio of inertia force to the surface tension force is known as
Reynold's number
Froude's number
Weber's number
Euler's number

⇒ Froude number is the ratio of inertia force to
Pressure force
Viscous force
Gravity force
Elastic force