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| 43. |
The conditions for the stable equilibrium of a floating body are
|
| A. |
the meta-centre should lie above the centre of gravity |
B.
|
the centre of buoyancy and the centre of gravity must lie on the same vertical line |
|
C.
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a righting couple should be formed
|
D.
|
all the above are correct
|
|
Answer: Option D
Explanation:
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| 44. |
The continuity equation is connected with
|
| A. |
viscous/unviscous fluids |
B.
|
compressibility of fluids |
|
C.
|
conservation of mass
|
D.
|
steady/unsteady flow
|
|
Answer: Option C
Explanation:
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| 45. |
The density of water is 1000 kg/m3 at
|
| A. |
0°C |
B.
|
0°K |
|
C.
|
4°C
|
D.
|
20°C
|
|
Answer: Option C
Explanation:
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| 46. |
The increase of temperature results in
|
| A. |
increase in viscosity of gas |
B.
|
increase in viscosity of liquid |
|
C.
|
decrease in viscosity of gas
|
D.
|
decrease in viscosity of liquid
|
|
Answer: Option D
Explanation:
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| 47. |
The peoperty by virtue of which a liquid opposes relative motion between its different layers is called
|
| A. |
surface tension |
B.
|
co-efficient of viscosity |
|
C.
|
viscosity
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D.
|
osmosis
|
|
Answer: Option C
Explanation:
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| 48. |
The point in the immersed body through which the resultant pressure of the liquid may be taken to act is known as
|
| A. |
meta centre |
B.
|
centre of pressure |
|
C.
|
centre of buoyancy
|
D.
|
centre of gravity
|
|
Answer: Option B
Explanation:
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