Hydraulics MCQ Practice Questions (Civil Engineering) Set 9

Equation of continuity of flow is based on the principle of conservation of:


Options are :

  • Force
  • None of these
  • Mass
  • Momentum

Answer :Mass

Hydraulics MCQ Practice Questions (Civil Engineering) Set 2

An open container filled with water is moved vertically upward with a uniform linear acceleration. The pressure at its bottom will be:


Options are :

  • Greater than static pressure
  • Lesser than static pressure
  • Equal to static pressure
  • None of these

Answer :Greater than static pressure

The ratio of time for completely emptying the hemispherical tank and circular horizontal tank of equal radii both fitted with similar orifices at their bottoms is:


A.


B.


C.


D.


Options are :

  • A
  • D
  • C
  • B

Answer :A

If H is the depth of water retained by a vertical wall, the height of centre of pressure above the bottom is:


A.


B.


C.


D.


Options are :

  • B
  • C
  • A
  • D

Answer :A

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 8

For a most economical rectangular channel, the width of the channel must be:


Options are :

  • Twice the depth of flow
  • None of these
  • Equal to depth of flow
  • Half the depth of flow

Answer :Twice the depth of flow

'Flow net' can be drawn only if the flow is:


Options are :

  • Distortion
  • None of these
  • Turbulent
  • Rotational

Answer :Distortion

If E1 and E2 are the specific energies at the start of back water curve and at the maximum rise of water respectively and ib and ie are the head slope and the energy line slope respectively, the length of back water (L) is given by:


A.


B.


C.


D.

None of these


Options are :

  • C
  • D
  • A
  • B

Answer :B

Theory of Structures MCQ Practice Questions (Civil Eng) Set 6

Total energy line is:


Options are :

  • All the above
  • Kinetic head
  • Pressure head
  • Datum head

Answer :All the above

Pick up the correct statement from the following:


Options are :

  • Discharge over a triangular notch is proportional to H^(5/2)
  • None of these
  • Discharge over a rectangular notch is proportional to H^(3/2)

Answer :Discharge over a triangular notch is proportional to H^(5/2) Discharge over a rectangular notch is proportional to H^(3/2)

Pick up the incorrect statement from to following regarding triangular notch:


Options are :

  • For measuring low discharge, it gives more accurate result
  • Ventilation is necessary
  • None of these
  • Only one reading (i.e. H) is required for computation of discharge

Answer :Ventilation is necessary

Irrigation MCQ Practice Questions (Civil Engineering) Set 5

If a1 and a2 are the cross-sectional areas of a tank and orifice, h the height of water level in tank above the centre of the orifice, the velocity of approach is given by:


A.


B.


C.


D.


Options are :

  • B
  • D
  • A
  • C

Answer :A

In an inclined position, a venturimeter records:


Options are :

  • More reading
  • Less reading
  • None of these
  • Same reading

Answer :Same reading

The ratio of the hydraulic radius of a pipe running full to the hydraulic radius of a square section of a channel whose side is equal to the diameter of the pipe, is:


A.

1


B.


C.


D.


Options are :

  • D
  • B
  • A
  • C

Answer :D

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 1

A stepped notch is a combination of:


Options are :

  • Rectangular notches of different sizes
  • All the above
  • Rectangular and triangular notches
  • Triangular notches of different sizes

Answer :Rectangular notches of different sizes

In an inclined pipe, the pressure difference at its two ends is due to:


Options are :

  • Frictional loss head
  • Sudden head drop at inlet
  • Exit head drop
  • Elevation head
  • All the above

Answer :All the above

The flow in open channel is said to be subcritical if the Froude number is:


Options are :

  • Greater than 1.0
  • Equal to 1.0
  • Less than 1.0
  • None

Answer :Less than 1.0

Theory of Structures MCQ Practice Questions (Civil Eng) Set 2

When a liquid rotates at constant angular velocity about a vertical axis of a rigid body, the pressure:


Options are :

  • Decreases as the square of the radial distance
  • Varies inversely as the altitude along any vertical line
  • Increases linearly to its radial distance
  • Varies as the square of the radial distance
  • None of these

Answer :Varies as the square of the radial distance

The notch angle for maximum discharge over a triangular notch, is:


Options are :

  • 30
  • 90
  • 60
  • 120

Answer :90

Though angle of deviation of liquid is more in internal mouth piece, the contraction of the jet, is:


Options are :

  • None of these
  • Equal to external mouth piece
  • Less in the internal mouth piece
  • More in the internal mouth piece

Answer :More in the internal mouth piece

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 2

In a two dimensional flow if the components of the velocity are u = ax ; v = by, the point where no motion occurs, is known as:


Options are :

  • Stationary point
  • None of these
  • Critical point
  • Neutral point
  • Stagnation point

Answer :Stagnation point

Mass density of liquid (?) is given by:


A.


B.


C.


D.

All the above


Options are :

  • A
  • C
  • B
  • D

Answer :D

For critical flow, the Froude number is:


Options are :

  • 1.0
  • 2
  • More than 1.0
  • Less than 1.0

Answer :1.0

RCC Structures Design MCQ Practice Questions (Civil Eng) Set 6

The velocity of flow at the critical depth (hc) is called critical velocity (Vc) which is equal to:


A.

Vc = g x hc


B.

?g x hc


C.


D.

None of these


Options are :

  • C
  • A
  • B
  • D

Answer :B

In C.G.S. system the unit of visocity is:


Options are :

  • Newton
  • Dyne
  • Joule
  • None of these
  • Poise

Answer :Poise

The flow in open channel is laminar if the Reynold number is:


Options are :

  • None of these
  • Less than 500
  • 1000
  • More than 500

Answer :Less than 500

Theory of Structures MCQ Practice Questions (Civil Eng) Set 5

Centre of buoyancy is:


Options are :

  • None of these
  • Centroid of the floating body
  • Centroid of the fluid displaced
  • Centre of pressure of the displaced liquid

Answer :Centroid of the fluid displaced

For maximum power transmission through a nozzle, (where hf is the head lost due to friction)


A.


B.


C.


D.


Options are :

  • D
  • A
  • C
  • B

Answer :B

An orifice is called a large orifice if water head, is:


Options are :

  • Twice the diameter of the orifice
  • Five times the diameter of the orifice
  • Four times the diameter of the orifice
  • Thrice the diameter of the orifice

Answer :Five times the diameter of the orifice

Elements of Remote Sensing MCQ Practice Questions (Civil) Set 4

A floating body attains stable equilibrium if its metacentre is:


Options are :

  • Anywhere
  • At the centroid
  • Above the centroid
  • Below the centroid

Answer :Above the centroid

The initial difference between liquid levels of two identical cylindrical vessels having their area of cross-section A, is H. Flow time T from one vessel to another through an orifice having coefficient of discharge Cd and area a will be:


A.


B.


C.


D.


Options are :

  • B
  • C
  • D
  • A

Answer :B

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