Fluid Mechanics MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Fluid Mechanics, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Fluid Mechanics MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Fluid Mechanics mcq questions that explore various aspects of Fluid Mechanics problems. Each MCQ is crafted to challenge your understanding of Fluid Mechanics principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Fluid Mechanics MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Fluid Mechanics. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

So, are you ready to put your Fluid Mechanics knowledge to the test? Let's get started with our carefully curated MCQs!

Fluid Mechanics MCQs | Page 26 of 77

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Q251.
Buoyant force

a.

for non-symmetrical bodies is not vertical.

b.

depends on the depth of the submergence of the floating body.

c.

depends on the weight of the floating body.

d.

none of these.

Discuss
Answer: (c).depends on the weight of the floating body.
Q252.
Which of the following options will facilitate the achievement of a very high head (say 30 metres) in case of a centrifugal pump?

a.

Increasing the impeller speed and the volute area.

b.

Increasing the number of vanes in the impeller.

c.

Mounting of two or more impellers in series on a single shaft.

d.

Either of (a), (b) or (c).

Discuss
Answer: (c).Mounting of two or more impellers in series on a single shaft.
Q253.
An equipotential line is __________ to the velocity vector at every point.

a.

normal

b.

normal

c.

tangential

d.

none of these

Discuss
Answer: (b).normal
Q254.
Path followed by water jet issuing from the bottom of a water tank will be a

a.

parabola (vertex being at the opening).

b.

hyperbola.

c.

horizontal straight line.

d.

zig-zag path (which is geometrically undefined).

Discuss
Answer: (a).parabola (vertex being at the opening).
Q255.
Which of the following produces maximum pressure difference for transportation of gases ?

a.

Vaccum pumps

b.

Blowers

c.

Fans

d.

Compressors

Discuss
Answer: (d).Compressors
Q256.
Drag co-efficient in hindered settling is __________ that in free settling.

a.

less than

b.

equal to

c.

not necessarily greater than

d.

always greater than

Discuss
Answer: (d).always greater than
Q257.
Efficiency of power transmission (ฮท) through a circular pipe is given by (ht - hf)/ht, which has a maximum value of __________ percent.

a.

33:3

b.

50

c.

66.6

d.

88.8

Discuss
Answer: (c).66.6
Q258.
One dimensional fluid flow implies the

a.

flow in straight lines only.

b.

uniform flow.

c.

steady uniform flow.

d.

flow in which transverse components are zero.

Discuss
Answer: (d).flow in which transverse components are zero.
Q259.
__________ forces act on a particle moving through a stationary fluid.

a.

Gravity

b.

Drag

c.

Buoyant

d.

all (a), (b), & (c)

Discuss
Answer: (d).all (a), (b), & (c)
Q260.
Consider a centrifugal pump having a specific impeller diameter, fixed impeller speed pumping a liquid of constant density at a particular discharge capacity. With decrease in the capacity of the pump, the __________ decreases.

a.

NPSH required.

b.

BHP required by the pump.

c.

head of the liquid pumped.

d.

all (a), (b) and (c).

Discuss
Answer: (d).all (a), (b) and (c).
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