Chemical Engineering - Fluid Mechanics - Discussion
Discussion Forum : Fluid Mechanics - Section 1 (Q.No. 35)
35.
Which of the following is not a dimension-less parameter ?
Discussion:
7 comments Page 1 of 1.
Tirumareddy jagadish said:
3 years ago
SG is the only one that doesn't have dimension in the above options.
Bhumesh said:
7 years ago
Specific gravity and Fanning friction factor are dimensionless numbers.
Yogesh said:
8 years ago
All three options are dimensionless.
(2)
Mohit said:
8 years ago
Specific Gravity is density of substance with respect to a reference substance (generally H20). So the answer is correct.
(1)
Ravi said:
1 decade ago
Specific gravity is also dimensionless.
Chinna said:
1 decade ago
Answer is is SG = Given density/Reference density,
Example petrol at 15.56*C 755 kg/m3.
So that : (755 kg/m2)/(water = 996.8 kg/m2).
= 0.7574.
Example petrol at 15.56*C 755 kg/m3.
So that : (755 kg/m2)/(water = 996.8 kg/m2).
= 0.7574.
Michael said:
1 decade ago
I think the answer is B because specific gravity is the inverse of density has units unlike fanning frictional factor and Euler's number.
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