Online Civil Engineering Test - Hydraulics Test

Instruction:

  • This is a FREE online test. Beware of scammers who ask for money to attend this test.
  • Total number of questions: 20.
  • Time allotted: 30 minutes.
  • Each question carries 1 mark; there are no negative marks.
  • DO NOT refresh the page.
  • All the best!

Marks : 2/20


Total number of questions
20
Number of answered questions
0
Number of unanswered questions
20
Test Review : View answers and explanation for this test.

1.
The moment of inertia of a floating body along its longitudinal axis and the volume of water displaced by it are I and V respectively. The height of the metacentre above centre of buoyancy of the body, is
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2.
The shear stress distribution in viscous fluid through a circular pipe is :
maximum at the centre
maximum at the inside of surface
same throughout the section
none of these.
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3.
In fluids, steady flow occurs when
conditions of flow change steadily with time
conditions of flow do not change with time at a point
conditions of flow remain the same at adjacent point
velocity vector remains constant at a point.
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4.
For most economical rectangular section of a channel, the depth is kept
one-fourth of the width
three times the hydraulic radius
half the width
hydraulic mean depth
none of these.
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5.
Specific weight of liquid
remains constant at every place
does not remain constant at every place
varies from place to place on the earth
does not vary on any other planet.
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6.
Which one of the following statements is true ?
The value of kinetic energy correction factor for turbulent flow lies between 1.03 to 1.06
The value of kinetic energy correction factor for laminar flow is 2
The practical value of kinetic energy correction factor for turbulent flow is unity
all the above.
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7.
Manning's formula is used for
flow in open channels
head loss due to friction in open channels
head loss due to friction in pipes flowing full
flow in pipes.
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8.
The dimensionless parameter not applicable to flowing liquids, is
Reynold number
Weber number
Pressure coefficient
Kinematic viscosity
Friction factor.
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9.
The hydrostatic force acts through
centre of pressure
centre of top edge
centre of bottom edge
metacentre.
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10.
Total energy line is
pressure head
datum head
kinetic head
All the above.
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11.
For maximum power transmission through a nozzle, (where hf is the head lost due to friction)
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12.
The flow in open channel is said to be subcritical if the Froude number is
less than 1.0
equal to 1.0
greater than 1.0
none.
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13.
The velocity of flow at the critical depth (hc) is called critical velocity (Vc) which is equal to
Vc = g x hc
g x hc
None of these.
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14.
Equation of continuity of fluids is applicable only if
flow is steady
flow is compressive
flow is one dimensional
velocity is uniform over the cross-sections
all the above.
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15.
The discharge through an internal mouth piece is more if its length is
< diameter
< diameter
≥ diameter
none of these.
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16.
A load w is rolled a distance d across the deck of a ship of weight W, due to which the ship heels through θ°. The metacentric height of the ship, is
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17.
The dimensions MLT-2 refers to
specific weight
force
discharge
none of these.
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18.
For mountaneous regions having steep slope, wagons for carrying liquid are made with bottom
parallel to the road surface
parallel to the horizontal surface
inclined upward while moving upwards
inclined downward while moving downwards.
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19.
For a long pipe, the head loss
at the entrance is ignored
at the outlet is ignored
at the entrance and outlet both are ignored
due to friction is ignored.
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20.
Chezy's constant is suggested by
Bazin
Kutter
Manning
Powell.
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