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The approximate liquid depth in an agitation tank is equal to (where, d = tank diameter)?

LohaHridoy
  1. 0.5 d
  2. 0.75 d
  3. D
  4. 2 d

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AhmedNazir

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Answer: Option 3

Let'

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An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank?

Answer: Option 2 Let the capacity of the tank be 100 litres Initially: A type petrol = 100 litres After first operation: A type petrol = $$\frac{{100}}{2}$$ = 50 litres B type petrol =...

1 Answers 1 views
An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank ?

Answer: Option 2 Let the capacity of the tank be 100 litres. Then, Initially : A type petrol = 100 litres After first operation : A type petrol = $$\left( {\frac{{100}}{{2}}} \right)$$ = 50 litres...

1 Answers 1 views
When a cylindrical vessel of radius (r) containing liquid is revolved about its vertical axis ω rad/s, then depth of parabola which the liquid assumes is?

Answer: Option 2 Let'

1 Answers 1 views
Height of liquid in agitation tank is normally maintained equal to the tank diameter. However, if the tank is too tall and a large liquid hold up is desired, then two or more impellers mounted on the same shaft may be used. The clearance between the tank bottom and the bottom most impeller should be about (where, D = impeller diameter)?

Answer: Option 2 Let'

1 Answers 2 views
The loss of head due to viscosity for laminar flow in pipes is (where d = Diameter of pipe, l = Length of pipe, v = Velocity of the liquid in the pipe, μ = Viscosity of the liquid, and w = Specific weight of the flowing liquid)?

Answer: Option 4 Let'

1 Answers 1 views
The total pressure on a horizontally immersed surface is (where w = Specific weight of the liquid, A = Area of the immersed surface, and x = Depth of the centre of gravity of the immersed surface from the liquid surface)?

Answer: Option 3 Let'

1 Answers 1 views
The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface)?

Answer: Option 4 Let'

1 Answers 1 views
The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)?

Answer: Option 2 Let'

1 Answers 15 views
The location of centre of pressure, which defines the point of application of the total pressure force on the surface, can be calculated by applying the principle of moments according to which "sum of the moment of the resultant force about an axis is equal to the sum of the components about the same axis". The centre of pressure of a rectangular surface (of width 'w') immersed vertically in a static mass of fluid is at a depth of(where, y = depth of the liquid)?

Answer: Option 2 Let'

1 Answers 3 views
A tank filled partially with a liquid is subjected to a uniform horizontal acceleration. Which of the following is true for the surface of liquid in the tank?

Answer: Option 1 The liquid surface falls down on the direction of motion and rises up on the back side of the tank.

1 Answers 1 views

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