The capillary rise at 20°C in a clean glass tube of 1 mm bore containing water is approximately
A. 5 mm
B. 10 mm
C. 20 mm
D. 30 mm
Answer: Option D
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Related Questions on Hydraulics and Fluid Mechanics in ME
A flow in which the quantity of liquid flowing per second is constant, is called __________ flow.
A. Steady
B. Streamline
C. Turbulent
D. Unsteady
A hydraulic ram is a device used to
A. Store the energy of water
B. Increase the pressure of water
C. To lift water from deep wells
D. To lift small quantity of water to a greater height when a large quantity of water is available at a smaller height
A. The weight of the body
B. More than the weight of the body
C. Less than the weight of the body
D. Weight of the fluid displaced by the body
30
Option d is correct.
Using formula h= 4sigma cos($) /(¶gd)
well,
formula for raise in hight is
h=((4*surface tension*cos(angle))/(density*9.81*diameter))
from table at 20 degree c
tension=73*10^-3
on substitute u get 29.736mm which is equal to 30mm
well,
formula for raise in hight is
h=((4*surface tension*cos(angle))/(density*9.81*diameter))
Solution??