A. G is above B
B. B is above G
C. B & G coincide
D. None of these
Related Mcqs:
- Hydrometer measures the specific gravity of liquids based on the principles of buoyancy. Pycnometer is used to measure the specific gravity of_________________?
A. Powder & granular solids
B. Liquids
C. Low melting point semi-solids
D. All A, B & C - A floating/submerged body is always stable, if its centre of gravity___________________?
A. Lies above its centre of buoyancy
B. And centre of buoyancy coincide
C. Lies below its centre of buoyancy
D. Lies above its metacentre - 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 - A mercury (specific gravity = 13.6) manometer connected across an orificemeter fitted in a pipe shows a manometer reading of 2 cms. If the manometer liquid is changed to carbon tetrachloride (specific gravity = 1.6), then for the same flow rate of water the new manometer reading will be _______________ cms?
A. 17
B. 42
C. 84
D. 1.8 - Centre of pressure in an immersed body is ______________ the centre of gravity?
A. Above
B. Below
C. At
D. Either above or below; depends on the liquid density - 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 - A centrifugal pump used to pump water is used to pump an oil with specific gravity of 0.8 at the same rate. The power consumption will now_________________?
A. Increase
B. Decrease
C. Remain same
D. Data insufficient to predict - 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, the minimum fluidisation velocity, VOM is_________________?
A. 12 mm/s
B. 16 mm/s
C. 24 mm/s
D. 28 mm/s - Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will______________________?
A. Increase
B. Decrease
C. Remain same
D. Data insufficient to predict pressure drop - The pressure drop per unit length of pipe incurred by a fluid ‘X’ flowing through pipe is Δp. If another fluid ‘Y’ having both the specific gravity & density just double of that of fluid ‘X’, flows through the same pipe at the same flow rate/average velocity, then the pressure drop in this case will be__________________?
A. Δp
B. 2Δp
C. Δp2
D. Δp/2
