Hydrostatic Forces on Surfaces MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Hydrostatic Forces on Surfaces, 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 Hydrostatic Forces on Surfaces 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 Hydrostatic Forces on Surfaces mcq questions that explore various aspects of Hydrostatic Forces on Surfaces problems. Each MCQ is crafted to challenge your understanding of Hydrostatic Forces on Surfaces 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 Hydrostatic Forces on Surfaces 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 Hydrostatic Forces on Surfaces. 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 Hydrostatic Forces on Surfaces knowledge to the test? Let's get started with our carefully curated MCQs!

Hydrostatic Forces on Surfaces MCQs | Page 3 of 6

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Q21.
In a vertically submerged plane surface, pressure at every point remains same

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q22.
The magnitude of total pressure and centre of pressure is independent on the shape of the submerged plane surface.

a.

True

b.

False

c.

May be True or False

d.

Can't say

Discuss
Answer: (b).False
Q23.
What is the variation of total pressure with depth for any submerged surface if we neglect variation in the density?

a.

Linear

b.

Parabolic

c.

Curvilinear

d.

Logarithmic

Discuss
Answer: (a).Linear
Q24.
A pipe line which is 6 m in diameter contains a gate valve. The pressure at the centre of the pipe is 25 N/cm². If the pipe is filled with specific gravity 0.8, find the force exerted by the oil upon the gate.

a.

7.06 MN

b.

14.12 MN

c.

3.53 MN

d.

28.24 MN

Discuss
Answer: (a).7.06 MN
Q25.
The highest and lowest vertices of a diagonal of a square lamina (each side equal to 4m) are 1 m and 3 m respectively as shown. What will be the water force (in kN) on the lamina?

a.

78

b.

118

c.

157

d.

196

Discuss
Answer: (c).157
Q26.
The highest and lowest vertices of a diagonal of a square lamina (each side equal to 4m) are 1 m and 3 m respectively as shown. What will be the depth (in m) of it’s centre of pressure?

a.

1.08

b.

1.58

c.

2.08

d.

2.58

Discuss
Answer: (c).2.08
Q27.
A square lamina (each side equal to 2m) is submerged vertically in water such that the upper edge of the lamina is at a depth of 0.5 m from the water surface. If the pressure on the surface is 12 bar, what will be the total water pressure (in kN) on the lamina?

a.

39

b.

59

c.

64

d.

71

Discuss
Answer: (c).64
Q28.
A container is filled with two liquids of densities ρ₁ and ρ₂ up to heights h₁ and hβ‚‚ respectively. What will be the hydrostatic force (in kN) per unit width of the lower face AB?

a.

ρ₂g(h₁ + hβ‚‚)

b.

ρ₂g(h₁ + \(\frac{h_2}{2}\))

c.

ρ₂g(\(\frac{ρ_1}{ρ_2}\)h₁ + \(\frac{h_2}{2}\))

d.

ρ₂g(\(\frac{ρ_1}{ρ_2}\)h₁ + \(\frac{h_2}{2}\))²

Discuss
Answer: (c).ρ₂g(\(\frac{ρ_1}{ρ_2}\)h₁ + \(\frac{h_2}{2}\))
Q29.
Determine the centre of pressure on an isosceles triangle plate of base 6m and altitude 6m when it is immersed vertically in an oil of specific gravity 0.75. The base of the plate coincides with the free surface of oil.

a.

6 m

b.

3 m

c.

9 m

d.

12 m

Discuss
Answer: (b).3 m
Q30.
A tank contains water upto a height of 0.5 m above the base. An immiscible liquid of specific gravity 0.75 is filled on the top of water upto 1.5 m height. Calculate total pressure on side of the tank.

a.

17780.61 N/m²

b.

35561.22 N/m²

c.

71122.44 N/m²

d.

8890.31 N/m²

Discuss
Answer: (a).17780.61 N/m²
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