Applying the principles of Poiseuille's law,which statement is true?
A) The resistance offered by a tube is inversely proportional to its length.
B) As the radius of a tube decreases, the pressure gradient increases.
C) The more viscous the fluid, the easier it is to move the fluid through a tube.
D) The driving pressure of a gas is indirectly proportional with the length of the tube.

Question

Quizplus · Accepted Answer

Poiseuille's law can be rewritten as: DP = Q * [(8nl)/(Pr4)].According to this equation,the following statements can be made.The more viscous a fluid,the greater the pressure gradient required to cause it to move through a given tube.The resistance offered by a tube is directly proportional to its length.The pressure required to achieve a given flow through a tube must increase in direct proportion to the length of the tube.The resistance to flow is inversely proportional to the fourth power of the radius.Small changes in the radius of a tube will cause profound increases in the resistance to flow through that tube.

Applying the Principles of Poiseuille's Law,which Statement Is True