Civil Engineering - UPSC Civil Service Exam Questions - Discussion
Discussion Forum : UPSC Civil Service Exam Questions - Section 5 (Q.No. 24)
24.
The following statements relate to a laminar flow :
1. Laminar flow is rotational.
2. In laminar flow the loss of head is proportional to the square of the velocity.
3. In laminar flow the loss of head is proportional to the first power of viscosity.
4. In laminar flow the velocity is constant over the cross-section.
5. Other quantities remaining the same, increase in diameter will increase the Reynolds number in laminar flow.
Of these statements :
1. Laminar flow is rotational.
2. In laminar flow the loss of head is proportional to the square of the velocity.
3. In laminar flow the loss of head is proportional to the first power of viscosity.
4. In laminar flow the velocity is constant over the cross-section.
5. Other quantities remaining the same, increase in diameter will increase the Reynolds number in laminar flow.
Of these statements :
Discussion:
3 comments Page 1 of 1.
Rahul verma said:
3 years ago
Head loss = flv^2/2gd=32uvl/pgd^2.
Option D is correct.
Option D is correct.
Basu said:
7 years ago
Head loss = (32 * viscosity * v * L)/(unit weight * D^2).
Basu said:
7 years ago
The correct option will be C.
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