Hydraulics And Fluid Mechanics MCQ Questions & Answers

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Each section contains 100 MCQs on Hydraulics and Fluid Mechanics .

The Prartdtl mixing length is

A) zero at the pipe wall B) maximum at the pipe wall C) independent of shear stress D) none of the above

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The discharge through a V- notch varies as (where H is head)

A) $${{\text{H}}^{\frac{1}{2}}}$$ B) $${{\text{H}}^{ - \frac{1}{2}}}$$ C) $${{\text{H}}^{\frac{5}{2}}}$$ D) $${{\text{H}}^{\frac{3}{2}}}$$

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The units of viscosity are

A) metre²/sec B) kg sec/metre C) newton-sec/metre² D) newton-sec/metre

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is

A) less than 1 B) between 1 and 100 C) 160 D) 200

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

When a body floating in a liquid, is displaced slightly, it oscillates about

A) e.g. of body B) center of pressure C) center of buoyancy D) metacentre

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

The normal stress is same in all directions at a point in a fluid

A) only when the fluid is frictionless B) only when the fluid is incompressible and has zero viscosity C) when there is no motion of one fluid layer relative to an adjacent layer D) irrespective of the motion of one fluid layer relative to an adjacent layer

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

The surface tension of mercury at normal temperature compared to that of water is

A) more B) less C) same D) more or less depending on size of glass tube

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if

A) the area is horizontal B) the area is vertical C) the area is inclined D) all of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Operation of McLeod gauge used for low pressure measurement is based on the principle of

A) gas law B) Boyle’s law C) Charle’s law D) Pascal’s law

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to

A) 1 Pa B) 91 Pa C) 981 Pa D) 9810 Pa

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

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Hydraulics And Fluid Mechanics MCQ Questions & Answers | Civil Engineering