For the Streamlined Flow of a Viscous Liquid,such as Water,in

question 77

Multiple Choice

For the streamlined flow of a viscous liquid,such as water,in a capillary tube,which of the following is correct?

• A)The coefficient of viscosity depends on the radius of the inside of the tube raised to the fourth power.
• B)The velocity of the liquid is essentially zero at the tube walls and increases toward the center of the tube.
• C)There is no pressure difference along the tube provided the tube is less than 10 cm in length.
• D)The volume flow rate through the tube can never be constant.
• E)None of these is correct.

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