The distance between metacentre and ______________ is called metacentric height?

Related Mcqs:

1. The curve of metacentre for a floating body ____________ the curve of buoyancy?

   A. Is always below
   B. Is the evolute of
   C. Intersects at right angle
   D. Is tangential to

2. For an unstable equilibrium of a floating body (where, M = metacentre.) ?

   A. M is above G
   B. M is below G
   C. M & G coincide
   D. None of these

3. Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water column in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm)?

   A. H
   B. 12.6 H
   C. 13.6 H
   D. 14.6 H

4. For laminar flow of Newtonian fluid in a circular pipe, the velocity distribution is a function of the distance ‘d’ measured from the centre line of the pipe, and it follows a ______________ relationship?

   A. Logarithmic
   B. Parabolic
   C. Hyperbolic
   D. Linear

5. A Bingham fluid of viscosity μ = 10 Pa.s and yield stress, η0 = 10 KPa, is shared between flat parallel plates separated by a distance of 10-3 m. The top plate is moving with a velocity of 1 m/s. The shear stress on the plate is________________?

   A. 10 KPa
   B. 20 KPa
   C. 30 KPa
   D. 40 KPa

6. What is the pipe called which lifts water from a reservoir to a greater height than the initial level in the supply reservoir ?

   A. Penstock
   B. Siphon
   C. Tunnel
   D. Pressure pipeline

7. When the water is warm, the height to which it can be lifted by a pump_________________?

   A. Decreases due to reduced viscosity
   B. Decreases due to reduced vapour pressure
   C. Increases due to increased vapour pressure
   D. Decreases due to increased frictional resistance

8. A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below: Δ P/L = 375 × 103 VOM + 10.94 × 106 V2 OM (SI units) If water is to be used as the fluidising medium, in actual operation, the above bed has a height = 1 m. What is the porosity of the fluidised bed ?

   A. 0.2
   B. 0.5
   C. 0.7
   D. 0.8

9. The equivalent diameter for flow through a rectangular duct of width B and height H is___________________?

   A. HB/2 (H + B)
   B. HB/(H + B)
   C. 2HB/(H + B)
   D. 4HB/(H + B)

10. A bed consists of particles of density 2000 kg/m3. If the height of the bed is 1.5 metres and its porosity 0.6, the pressure drop required to fluidise the bed by air is_________________?

    A. 25.61 kPa
    B. 11.77 kPa
    C. 14.86 kPa
    D. 21.13 kPa