Buoyancy and Floatation MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Buoyancy and Floatation, a fundamental topic in the field of Fluid Mechanics. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Buoyancy and Floatation 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 Buoyancy and Floatation mcq questions that explore various aspects of Buoyancy and Floatation problems. Each MCQ is crafted to challenge your understanding of Buoyancy and Floatation principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Fluid Mechanics tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Buoyancy and Floatation MCQs are your pathway to success in mastering this essential Fluid Mechanics topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Buoyancy and Floatation. 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 Buoyancy and Floatation knowledge to the test? Let's get started with our carefully curated MCQs!

Buoyancy and Floatation MCQs | Page 3 of 4

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Q21.
A block of material of specific gravity 0.45 floats in water. Determine the meta-centric height of the block if its size is 3 m * 2 m* 0.8 m.

a.

0.506 m

b.

0.376 m

c.

1.012 m

d.

0.127 m

Discuss
Answer: (b).0.376 m
Q22.
A solid cylinder of diameter 4.5 has a height of 2.5 metres. Find the meta-centric height of the cylinder when it is floating in water with its axis vertical. The sp. gr. of the cylinder=0.45.

a.

1.9 m

b.

3.8 m

c.

5.7 m

d.

.95 m

Discuss
Answer: (a).1.9 m
Q23.
In case of spherically shaped bodies of uniform mass distribution and completely immersed in fluid and floating, the centre of buoyancy coincides with centre of gravity.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q24.
Proper explanation for metacentre is:

a.

Point at which line of action of force meets the normal axis of body when it is given angular displacement

b.

Intersection of line passing through new centre of buoyancy and centre of gravity.

c.

point about which body starts oscillating when it is given small angular displacement

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q25.
The metacentric height is affected by the change in density.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (a).True
Q26.
or a completely immersed body, the metacentric height is always zero.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q27.
Meta centre always lies below the centre of gravity

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q28.
The principle of floatation of bodies is based on the premise of

a.

Metacentre

b.

Newtons first law

c.

Newtons law of viscosity

d.

None of the mentioned

Discuss
Answer: (a).Metacentre
Q29.
A solid cylinder of diameter 5.0 m has a height of 6.0 m. Find the meta-centric height of the cylinder if the specific gravity of the material of cylinder 0.45 and it is floating in water with its axis vertical.

a.

-0.29 m

b.

-0.61 m

c.

-1.16 m

d.

0.14 m

Discuss
Answer: (b).-0.61 m
Q30.
A solid cylinder of 15 cm diameter and 40 cm long, consists of two parts made of different materials. The first part at the base is 1.5 cm long and of specific gravity=6.5. The other part of the cylinder is made of the material having specific gravity 0.75. State, if the it can float vertically in water.

a.

It will float

b.

It will not float

c.

Data insufficient

d.

None of the mentioned

Discuss
Answer: (a).It will float
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