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Test: Fluid Mechanics Level - 3


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25 Questions MCQ Test Civil Engineering SSC JE (Technical) | Test: Fluid Mechanics Level - 3

Test: Fluid Mechanics Level - 3 for Civil Engineering (CE) 2022 is part of Civil Engineering SSC JE (Technical) preparation. The Test: Fluid Mechanics Level - 3 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Fluid Mechanics Level - 3 MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Fluid Mechanics Level - 3 below.
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Test: Fluid Mechanics Level - 3 - Question 1

If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be

Detailed Solution for Test: Fluid Mechanics Level - 3 - Question 1

Test: Fluid Mechanics Level - 3 - Question 2

An open vessel of water is accelerated up an inclined plane. The free water surface will

Test: Fluid Mechanics Level - 3 - Question 3

The line of action of the buoyant force acts through the centroid of the

Test: Fluid Mechanics Level - 3 - Question 4

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

Test: Fluid Mechanics Level - 3 - Question 5

The velocity at the exit of the pipe as shown in the below figure will be

Test: Fluid Mechanics Level - 3 - Question 6

The following terms relate to floating bodies :
Centre of gravity .....G
Meta Centre .....M
Weight of floating body.....W
Buoyant force ......FB
Match List I with List II and select these correct answer

Test: Fluid Mechanics Level - 3 - Question 7

Match List I with List II and select the correct answer.

 

Detailed Solution for Test: Fluid Mechanics Level - 3 - Question 7

Answer : D

Test: Fluid Mechanics Level - 3 - Question 8

Match List I with List II and select the correct answer:

Test: Fluid Mechanics Level - 3 - Question 9

Match List I (fluid properties) with List II (related terms) and select the correct answer

Test: Fluid Mechanics Level - 3 - Question 10

Match List I with List II and select the correct answer.

Test: Fluid Mechanics Level - 3 - Question 11

Newton's law of viscosity for a fluid states that the shear stress is

Test: Fluid Mechanics Level - 3 - Question 12

The General relationship between shear stress (ζ) and velocity Gradient  ( du/dy ) for a fluid can
be written as

ζ = A  ( du/dy )+ B
If n < 1, B = 0
Then the fluid known as

Test: Fluid Mechanics Level - 3 - Question 13

If angle of contact of a drop of liquid is acute than

Test: Fluid Mechanics Level - 3 - Question 14

Match List I (Physical properties of fluid) with List II (Dimensions/definitions) and select the correct answer using the codes given below the lists.

Test: Fluid Mechanics Level - 3 - Question 15

An increase in pressure of 2 bars decreases the volume of a liquid by 0.01 per cent. The bulk modulus of elasticity of the liquid is

Test: Fluid Mechanics Level - 3 - Question 16

The pressure inside a soap bubble of 50 mm diameter is 25 N/m2 above the atmospheric pressure. What is the surface tension is soap film

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Test: Fluid Mechanics Level - 3 - Question 17

Bourdon gauge measures

Test: Fluid Mechanics Level - 3 - Question 18

When can a piezometer be not used for pressure measurement in pipes

Test: Fluid Mechanics Level - 3 - Question 19

What is the difference in pressure head, measured by a mercury-oil differential manometer for a 20 cm difference of mercury level?  (Sp. gravity of oil = 0.8)

Detailed Solution for Test: Fluid Mechanics Level - 3 - Question 19

Difference in pressure head in m of oil (i.e. lighter liquid)

Test: Fluid Mechanics Level - 3 - Question 20

In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle θ, sensitivity of inclined tube to sensitivity of U-tube equal to

Test: Fluid Mechanics Level - 3 - Question 21

In figure if the pressure of gas in bulb A is 50 cm Hg vacuum and Patm = 76 cm Hg, the height of column H is equal to

Detailed Solution for Test: Fluid Mechanics Level - 3 - Question 21

Test: Fluid Mechanics Level - 3 - Question 22

A U-tube manometer is used to measure the pressure in an oil pipe A as shown in the figure.The specific gravity of the oil is 0.8 and that of mercury is 13.6. The equivalent gauge pressure is nearly.

Detailed Solution for Test: Fluid Mechanics Level - 3 - Question 22

Test: Fluid Mechanics Level - 3 - Question 23

A multi-tube manometer filled with water up to level A, B and C as shown in the figure is rotated about the vertical axis at A. The water levels at A, B and C will all lie on

Test: Fluid Mechanics Level - 3 - Question 24

A U-tube manometer shown attached to an air pipe reads a height of 20 cm of mercury as shown. What is the pressure in kPa in the air pipe ?
 

Detailed Solution for Test: Fluid Mechanics Level - 3 - Question 24

Test: Fluid Mechanics Level - 3 - Question 25

A metal block is thrown into deep lake. As it sinks deeper in water, the buoyant force acting on it

Detailed Solution for Test: Fluid Mechanics Level - 3 - Question 25

Objects weigh more in air than in water. When the stone sinks, the weight of the stone appears to weigh less. The missing weight is equal to the weight of the water displaced. This weight is equal to the buoyant force.
That is, Loss in weight of body = Weight of water (liquid) displaced by the body = Buoyant force or upthrust exerted by water (any liquid) on the body.
Once the stone is fully submerged, the buoyant force will remain unchanged because the volume of water that it displaces will remain unchanged.

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