Hydraulics And Fluid Mechanics MCQ Questions & Answers

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Each section contains 100 MCQs on Hydraulics and Fluid Mechanics .

The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is

A) 32 km B) 20 km C) 8 km D) 4 km

Discuss

Answer & Solution

Answer: Option A

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

If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will

A) rise until its weight equals the buoyant force B) tend to move downward and it may finally sink C) float D) none of the above

Discuss

Answer & Solution

Answer: Option B

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

A liquid would wet the solid, if adhesion forces as compared to cohesion forces are

A) less B) more C) equal D) less at low temperature and more at high temperature

Discuss

Answer & Solution

Answer: Option B

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

A metal with specific gravity of o floating in a fluid of same specific gravity a will

A) sink to bottom B) float over fluid C) partly immersed D) be fully immersed with top surface at fluid surface

Discuss

Answer & Solution

Answer: Option D

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

The time oscillation of a floating body with increase in metacentric height will be

A) same B) higher C) lower D) lower/higher depending on weight of body

Discuss

Answer & Solution

Answer: Option C

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

If the surface of liquid is convex, men

A) cohesion pressure is negligible B) cohesion pressure is decreased C) cohesion pressure is increased D) there is no cohesion pressure

Discuss

Answer & Solution

Answer: Option C

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

In series-pipe problems

A) the head loss is same through each pipe B) the discharge is same through each pipe C) a trial solution is not necessary D) the discharge through each pipe is added to obtain total discharge

Discuss

Answer & Solution

Answer: Option B

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

An ideal flow of any fluid must fulfill the following

A) Newton’s law of motion B) Newton’s law of viscosity C) Pascal’ law D) Continuity equation

Discuss

Answer & Solution

Answer: Option D

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

In a static fluid

A) resistance to shear stress is small B) fluid pressure is zero C) linear deformation is small D) only normal stresses can exist

Discuss

Answer & Solution

Answer: Option D

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

The motion of air mass in a tornado is a

A) free vortex motion B) forced vortex motion C) free vortex at center and forced vortex outside D) forced vortex at center and free vortex outside

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