Narrow-crested weir
Broad-crested weir
Ogee weir
Submerged weir
D. Submerged weir
Pressure in pipes, channels etc.
Atmospheric pressure
Very low pressure
Difference of pressure between two points
Equal
Directly proportional
Inversely proportional
None of these
1.84 (L - 0.1nH)H3/2
1.84 (L - nH)H2
1.84 (L - 0.1nH)H5/2
1.84 (L - nH)H3
19.24 kPa
29.24 kPa
39.24 kPa
49.24 kPa
Increases
Decreases
Remain unaffected
Unpredictable
4.5 kN/m3
6 kN/m3
7.5 kN/m3
10 kN/m3
Higher
Lower
Same
Higher/lower depending on temperature
Real fluid
Ideal fluid
Newtonian fluid
Non-Newtonian fluid
Less than 2000
Between 2000 and 2800
More than 2800
None of these
Equal to
Less than
More than
None of these
Atmospheric pressure
Gauge pressure
Absolute pressure
None of these
Total energy per unit discharge
Total energy measured with respect to the datum passing through the bottom of the channel
Total energy measured above the horizontal datum
Kinetic energy plotted above the free surface of water
Pascal's law
Archimedess principle
Principle of floatation
Bernoulli's theorem
ML°T⁻²
ML°T
ML r²
ML²T²
Below the center of gravity
Below the center of buoyancy
Above the center of buoyancy
Above the center of gravity
Pressure
Flow
Velocity
Discharge
It has low vapour pressure
It is clearly visible
It has low surface tension
It can provide longer column due to low density
U-tube with water
Inclined U-tube
U-tube with mercury
Micro-manometer with water
The size of orifice is large
The velocity of flow is large
The available head of liquid is more than 5 times the height of orifice
The available head of liquid is less than 5 times the height of orifice
Smooth and streamline flow
Laminar flow
Steady flow
Highly turbulent flow
Equal to
One-third
Two-third
Three-fourth
400 kg/cm²
4000 kg/cm²
40 × 10⁵ kg/cm²
40 × 10⁶ kg/cm²
Real
Ideal
Newtonian
Non-Newtonian
Remain unaffected
Increases
Decreases
None of these
Sill or crest
Nappe or vein
Orifice
None of these
v₁²/2g
v₂²/2g
0.5 v₁²/2g
0.375 v₂²/2g
0.855 a.√(2gH)
1.855 aH.√(2g)
1.585 a.√(2gH)
5.85 aH.√(2g)
Friction loss and flow
Length and diameter
Flow and length
Friction factor and diameter
Running full
Running free
Partially running full
Partially running free
Width of channel at the top is equal to twice the width at the bottom
Depth of channel is equal to the width at the bottom
The sloping side is equal to half the width at the top
The sloping side is equal to the width at the bottom