Test: Laminar Flow in Pipes - 2


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6 Questions MCQ Test GATE Civil Engineering (CE) 2023 Mock Test Series | Test: Laminar Flow in Pipes - 2

Test: Laminar Flow in Pipes - 2 for Civil Engineering (CE) 2022 is part of GATE Civil Engineering (CE) 2023 Mock Test Series preparation. The Test: Laminar Flow in Pipes - 2 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Laminar Flow in Pipes - 2 MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Laminar Flow in Pipes - 2 below.
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Test: Laminar Flow in Pipes - 2 - Question 1

A fluid of kinematic viscosity 0.4 cm2/sec flows through a 8 cm diameter pipe. The maximum velocity for laminar flow will be

Detailed Solution for Test: Laminar Flow in Pipes - 2 - Question 1

Maximum Reynold's number for laminar flow = 2000

Test: Laminar Flow in Pipes - 2 - Question 2

In a two-dimensional flow of a viscous fluid couette flow is defined for

Detailed Solution for Test: Laminar Flow in Pipes - 2 - Question 2

Coutte flow is characterized as flow of very low value of Reynolds number between two parallel plate, one is fixed and other is movable.

Test: Laminar Flow in Pipes - 2 - Question 3

Consider the following statements regarding the laminar flow through a circular pipe:
1. The friction factor is constant.
2. Thp friction factor dspends Upon the pipe roughness.
3. The friction factor varies inversely with the Reynolds number of flow.
4. The velocity distribution is parabolic.
5. The pressure drop varies directly with the mean velocity.
Of these statements:

Detailed Solution for Test: Laminar Flow in Pipes - 2 - Question 3

For laminar flow th rough circular pipe  It is neither constant, and does not depend on pipe roughness. 
As head loss varies directly with mean velocity so pressure drop also.

Test: Laminar Flow in Pipes - 2 - Question 4

The velocity profile in fully developed laminar flow in a pipe of diameter D is given by u = u0(1 - 4r2/D2), where r is the radial distance from the center. If the viscosity of the fluid is μ, the pressure drop across a length L of the pipe is

Detailed Solution for Test: Laminar Flow in Pipes - 2 - Question 4

We Know that,
Pressure drop across a length L of pipe is
    ...(i)

Test: Laminar Flow in Pipes - 2 - Question 5

Consider fully developed laminar flow in a circular pipe of a fixed length:

1) The friction factor is inversely proportional to Reynolds number

2) The pressure drop in the pipe is proportional to the average velocity of the flow in the pipe

3) The friction factor is higher for a rough pipe as compared to a smooth pipe

4) The pressure drop in the pipe is proportional to the square of average of flow in the pipe.

Which of the above statements are correct?

Test: Laminar Flow in Pipes - 2 - Question 6

Laminar developed flow at an average velocity of 5 m/s occurs in a pipe of 10 cm radius. The velocity at 5 cm radius is

Detailed Solution for Test: Laminar Flow in Pipes - 2 - Question 6

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