Mechanical Engineering - Hydraulics and Fluid Mechanics - Discussion

4. 

The ratio of specific weight of a liquid to the specific weight of pure water at a standard temperature is called

[A]. density of liquid
[B]. specific gravity of liquid
[C]. compressibility of liquid
[D]. surface tension of liquid

Answer: Option B

Explanation:

No answer description available for this question.

Ardestani said: (Mar 15, 2016)  
Please let me know why answer B is correct and not A?

Crazy Basar said: (Feb 9, 2020)  
@Ardestani.

The definition of specific gravity is the ratio of the density of a liquid to the density of the standard liquid(water).

Now, specific weight means the weight per unit volume ..i.e d*g.

Now the ratio of d*g of liquid to the d*g of water. We will get d of liquid / d of water i.e. specific gravity or relative density.

d - Density.
g - Gravitational acceleration.

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