| A. |
Reynold's number |
| B. |
Froude's number |
| C. |
Mach number |
| D. |
Euler's number
|
2.
|
In a depressed nappe
|
| A. |
the pressure below the nappe is atmospheric |
| B. |
the pressure below the nappe is negative |
| C. |
the pressure above the nappe is atmospheric |
| D. |
the pressure above the nappe is negative |
3.
|
In one dimensional flow, the flow
|
| A. |
is steady and uniform |
| B. |
takes place in straight line |
| C. |
takes place in curve |
| D. |
takes place in one direction |
|
4.
|
The kinematic viscosity is the
|
| A. |
ratio of absolute viscosity to the density of the liquid |
| B. |
ratio of density of the liquid to the absolute viscosity |
| C. |
product of absolute viscosity and density of the liquid |
| D. |
product of absolute viscosity and mass of the liquid |
|
5.
|
A weir is said to be broad crested weir, if the width of the crest of the weir is __________ half the height of water above the weir crest.
|
| A. |
equal to. |
| B. |
less than |
| C. |
more than |
|
6.
|
A vertical wall is subjected to a pressure due to one kind of liquid, on one of its sides. The total pressure on the wall per unit length is (where w = Specific weight of liquid, and H = Height of liquid)
|
| A. |
wH |
B. |
wH/2 |
| C. |
wH2/2 |
D. |
wH2/3 |
|
7.
|
An error of 1% in measuring head over the apex of the notch (H) will produce an error of __________ in discharge over a triangular notch.
|
| A. |
1% |
B. |
1.5% |
| C. |
2% |
D. |
2.5% |
|
8.
|
Coefficient of contraction is the ratio of
|
| A. |
actual velocity of jet at vena contracta to the theoretical velocity |
| B. |
loss of head in the orifice to the head of water available at the exit of the orifice |
| C. |
actual discharge through an orifice to the theoretical discharge |
| D. |
area of jet at vena contracta to the area of orifice |
|
9.
|
Coefficient of resistance is the ratio of
|
| A. |
actual velocity of jet at vena contracta to the theoretical velocity |
| B. |
area of jet at vena contracta to the area of orifice |
| C. |
loss of head in the orifice to the head of water available at the exit of the orifice |
| D. |
actual discharge through an orifice to the dieoretical discharge |
|
10.
|
In order to measure the flow with a venturimeter, it is installed in
|
| A. |
horizontal line |
| B. |
inclined line with flow upwards |
| C. |
inclined line with flow downwards |
| D. |
any direction and in any location |
|
|
|