Fluid Mechanics Civil Engineering MCQs Part 3

Fluid Mechanics MCQ Part 3

In this Civil Experience article, you will get all Fluid Mechanics MCQs with answers for best practices for competitive exams to crack competitive exams will always update our article and add more and more MCQ so bookmark and share with a friend and help them in exam study preparaiton.

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What would the intensity of excess rainfall that would be represented by a Unit hydrograph of 4 hr duration?

[A] 4 cm/hr
[B] 2 cm/hr
[C] 0.50 cm/hr
[D] 0.25 cm/hr

ANSWER= [D] 0.25 cm/hr

0.25 cm/hr would the intensity of excess rainfall that would be represented by a Unit hydrograph of 4 hr duration

Rational formula is applicable under what condition in prediction of flood for storm of duration 1hr?

[A] The time of concentration at catchment outlet should be higher than 1hr
[B] The time of concentration at catchment outlet should be lesser than 1hr
[C] The time of concentration at catchment outlet should be higher than 0.50 hr
[D] The time of concentration at catchment outlet should be lesser than 0.50 hr

ANSWER = [B] The time of concentration at catchment outlet should be lesser than 1hr

The recurrence intervals for a flood of magnitude 20000m³/s in a river. were observed to be 4 yes, 6 yrs, 5yrs and 10 yrs in a time span of 30 yrs. What would be the Returm period for the flood of magnitude 20000m³/s in the same river?

[A] 4yrs
[B] 5yrs
[C] 6yrs
[D] 10yrs

ANSWER = [C] 6yrs

In hydrological routing. Storage time constant (K) represents _____

[A] Time required for passage of flood wave from upstream section to downstream section
[B] The relative weightage of inflows at upstream section and outflows from downstream section
[C] Base time for inflow flood hydrograph
[D] Base time for outflow flood hydrograph

ANSWER = [A] Time required for passage of flood wave from upstream section to downstream section

In hydrological routing. Storage time constant (K) represents Time required for passage of flood wave from upstream section to downstream section

The duty of a canal network would be maximum at which of the following location?

[A] Head of agricultural field
[B] Head of major distributary
[C] Head of Branch canal
[D] Head of main canal

ANSWER= [A] Head of agricultural field

The field capacity (FC) and permanent wilting point (PWP) of an irrigation field were observed to be 0.30 and 0.10 respectively. Compute the moisture content for optimal growth for the same field, by assuming readily available moisure is 75% of available moisture.

[A] 0.10
[B] 0.15
[C] 0.25
[D] 0.30

ANSWER= [C] 0.25

In case of wastewater disposal in a river, minimum dissolved oxygen level occurs in the zone of

[A] Zone of clear water
[B] Zone of active decomposition
[C] Zone of recovery
[D] Zone of degradation

ANSWER = [B] Zone of active decomposition

Sedimentation with coagulation treatment of water is effective when water is

[A] Slightly acidic
[B] Slightly alkaline
[C] Strong acidic
[D] Strong alkaline

ANSWER = [B] Slightly alkaline

What is the viscosity of a liquid whose kinematic viscosity is 6 stokes and specific gravity is 1.90?

[A] 1.14 poise
[B] 11.40 poise
[C] 0.114 Ns/m²
[D] 11.40 Ns/m²

ANSWER = [B] 11.40 poise

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