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Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Fluid Mechanics for Mechanical Engineering  >  Test: Flow Through Pipes - 1 - Mechanical Engineering MCQ

Test: Flow Through Pipes - 1 - Mechanical Engineering MCQ


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10 Questions MCQ Test Fluid Mechanics for Mechanical Engineering - Test: Flow Through Pipes - 1

Test: Flow Through Pipes - 1 for Mechanical Engineering 2025 is part of Fluid Mechanics for Mechanical Engineering preparation. The Test: Flow Through Pipes - 1 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Flow Through Pipes - 1 MCQs are made for Mechanical Engineering 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Flow Through Pipes - 1 below.
Solutions of Test: Flow Through Pipes - 1 questions in English are available as part of our Fluid Mechanics for Mechanical Engineering for Mechanical Engineering & Test: Flow Through Pipes - 1 solutions in Hindi for Fluid Mechanics for Mechanical Engineering course. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free. Attempt Test: Flow Through Pipes - 1 | 10 questions in 30 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Fluid Mechanics for Mechanical Engineering for Mechanical Engineering Exam | Download free PDF with solutions
Test: Flow Through Pipes - 1 - Question 1
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If a set of pipes described by (L1 D1,f1), (L2, D2, f2)... are connected in series then an equivalent pipe (Le, De, fe) is related as

Test: Flow Through Pipes - 1 - Question 2
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If a set of pipes described by (L1 D1,f1), (L2, D2, f2)... are connected in parallel between two points, then an equivalent pipe (Le, De, fe) is related as

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Test: Flow Through Pipes - 1 - Question 3
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The head loss in a sudden expansion from 5 cm diameter to 10 cm diameter pipe, in terms of velocity V1 in the 5 cm pipe

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Test: Flow Through Pipes - 1 - Question 4
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In a sudden contraction, the velocity head changes from 0.5 m to 1.25 m. The coefficient of contraction is 0.66. The head loss in this contraction is
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  • The head loss in a sudden contraction is calculated using the formula:
    Head Loss = (1 - Cc)2 * (V22 - V12)/2g

Given:

  • Initial velocity head, V12/2g = 0.5 m
  • Final velocity head, V22/2g = 1.25 m
  • Cc = 0.66
  • Substitute values:
    Head Loss = (1 - 0.66)2 * (1.25 - 0.5) = 0.332 m
  • The correct answer is B: 0.332 m.

 

Test: Flow Through Pipes - 1 - Question 5
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The minor loss due to sudden contraction is due to
Detailed Solution for Test: Flow Through Pipes - 1 - Question 5

In sudden contraction, right after the sudden contraction  Ac , a vena contracta is formed; and then, right after, the flow widens again to fill the entire pipe. The region between the wall interior pipe and the vena contracta will be a region of separated flow.  The flow pattern after the vena contracta is similar to that after an abrupt enlargement and the loss is caused due to expansion of flow after sudden contraction.

Test: Flow Through Pipes - 1 - Question 6
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The loss at the exit of a submerged pipe in a reservoir is
Test: Flow Through Pipes - 1 - Question 7
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 A pipe has a well rounded entrance from a reservoir. If the head loss at the entrance is expressed a  the value of K would be about
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Head loss for well rounded entrance as compared to sharp cornered entrance is very small.

Test: Flow Through Pipes - 1 - Question 8
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 In a 15 cm pipe line, the minor losses add upto   The length of a pipe of 15 cm diameter 2fif {f = 0.03) equivalent to this loss is
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For given condition,

Test: Flow Through Pipes - 1 - Question 9
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Three identical pipes of lenght L, diameter D and friction factor f, are connected in series between two reservoirs. The size of a pipe of length L and of the same friction factor f, equivalent to above pipeline, is
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Test: Flow Through Pipes - 1 - Question 10
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Two pipe systems in series are said to be equivalent when
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