| 1. | When a body is placed over a liquid, it will float if ? | |
|
gravitational force is equal to the upthrust of the liquid
|
||
|
gravitational force is less than the upthrust of the liquid
|
||
|
gravitational force is more than the upthrust of the liquid
|
||
|
none of the above
|
||
View Answer
Discuss in Forum
Report Question| 2. | The absolute pressure is equal to ? | |
|
gauge pressure + atmospheric pressure
|
||
|
gauge pressure - atmospheric pressure
|
||
|
atmospheric pressure - gauge pressure
|
||
|
gauge pressure - vacuum pressure
|
||
| 3. | Bernoulli's equation is applied to ? | |
|
venturimeter
|
||
|
orifice meer
|
||
|
pitot tube
|
||
|
all of these
|
||
| 4. | A piezometer tube is used only for measuring ? | |
|
low pressure
|
||
|
high pressure
|
||
|
moderate pressure
|
||
|
vacuum pressure
|
||
| 5. | The point at which the resultant pressure on an immersed surface acts, is known as ? | |
|
centre of gravity
|
||
|
centre of depth
|
||
|
centre of pressure
|
||
|
centre of immersed surface
|
||
| 6. | When a liquid is flowing through a pipe, the velocity of the liquid is ? | |
|
maximum at the centre and minimum near the walls
|
||
|
minimum at the centre and maximum near the walls
|
||
|
zero at the centre and maximum near the walls
|
||
|
maximum at the centre and zero near the walls
|
||
| 7. | When a vertical wall is subjected to pressures due to liquid on both sides, the resultant pressure is the .............. of the two pressures ? | |
|
sum
|
||
|
difference
|
||
|
arithmatic mean
|
||
|
geometric mean
|
||
| 8. | The specific gravity of water is taken as ? | |
|
0.001
|
||
|
0.01
|
||
|
0.1
|
||
|
1
|
||
| 9. | If the depth of water in an open channel is greater than the critical depth, the flow is called ? | |
|
critical flow
|
||
|
turbulent flow
|
||
|
tranquil flow
|
||
|
torrential flow
|
||
| 10. | Coefficient of resistance is the ratio of ? | |
|
actual velocity of jet at vena contracta to the theoretical velocity
|
||
|
area of jet at vena contracta to the area of orifice
|
||
|
loss of head in the orifice to the head of water available at the exit of the orifice
|
||
|
actual discharge through an orifice to the theoretical discharge
|
||