Test: Flow Through Pipes - 2


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10 Questions MCQ Test Topicwise Question Bank for Civil Engineering | Test: Flow Through Pipes - 2

Test: Flow Through Pipes - 2 for Civil Engineering (CE) 2022 is part of Topicwise Question Bank for Civil Engineering preparation. The Test: Flow Through Pipes - 2 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Flow Through 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: Flow Through Pipes - 2 below.
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Test: Flow Through Pipes - 2 - Question 1

Two reservoirs at different levels are connected by two parallel pipes of diameter '2d' and 'd'. The ratio of the flows in the two pipes (larger: smaller) is

Detailed Solution for Test: Flow Through Pipes - 2 - Question 1


⇒ Q1/Q2 = 4/1

Test: Flow Through Pipes - 2 - Question 2

A 15 cm diameter pipe carries a flow of 70 L/s of an oil (RD = 0.75). At a section 12 cm above the datum the pressure is vacuum of 2 cm of mercury, if the kinetic energy correction factor a for this section is 1.1, the total head at the section in metres of oil is 

Detailed Solution for Test: Flow Through Pipes - 2 - Question 2

Total head =  + ρ/y + z (here p is negative).

Test: Flow Through Pipes - 2 - Question 3

The loss of head due to friction in a pipe of uniform diameter in which viscous flow is taking place is
where Re = flow Reynold’s number

Test: Flow Through Pipes - 2 - Question 4

In the Moody diagram the third parameter is ks/D. Here ks is

Test: Flow Through Pipes - 2 - Question 5

A compound pipe of diameters d1, d2 and d3 having length l1, l2 and l3 respectively, is to be replaced by an equivalent pipe of uniform diameter d and length l. The size of the equivalent pipe is given by

Detailed Solution for Test: Flow Through Pipes - 2 - Question 5

For pipes in series equivalent pipe is given by:

For pipes in parallel equivalent pipe is given by

Test: Flow Through Pipes - 2 - Question 6

In a pipe flow, the shear velocity u. is related to the Darcy-Weisbach friction factor f as u./V =

Detailed Solution for Test: Flow Through Pipes - 2 - Question 6

friction factor,


Test: Flow Through Pipes - 2 - Question 7

Two pipe systems are said to be equivalent when

Test: Flow Through Pipes - 2 - Question 8

An oil of kinematic viscosity 0.25 stokes flows, through a pipe of diameter 10 cm. The flow is critical., at a velocity of 

Detailed Solution for Test: Flow Through Pipes - 2 - Question 8

R= 2000 = VD/v
2000 =  ⇒ V = 0.5 m/sec 

Test: Flow Through Pipes - 2 - Question 9

Which one of the following phenomena in a pipe flow is termed as water hammer?

Test: Flow Through Pipes - 2 - Question 10

The pressure at the summit of a syphon is

Detailed Solution for Test: Flow Through Pipes - 2 - Question 10

The centre line of pipe is well above the hydraulic grade line and therefore the pressure is negative or below atmospheric.

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