# Resistance In Fluid Systems: Question Preview (ID: 1294)

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To calculate fluid resistance |
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a) divide pressure drop by flow rate. | b) multiply pressure drop by flow rate. | c) divide flow rate by pressure drop. | d) multiply flow rate by pressure drop. | |

Viscosity is the resistance of a fluid. When the temperature increases, liquids |
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a) become thinner. | b) become thicker. | c) have a higher viscosity. | d) flow more slowly. | |

When designing fluid systems, the efficiency of the system is increased when fluid flow is |
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a) laminar. | b) not streamlined. | c) turbulent. | d) swirling and mixing. | |

If you double the pressure of a fluid in a pipe, the flow rate will |
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a) double. | b) be half as much. | c) increase then decrease. | d) remain the same. | |

The roughness in a pipe causes |
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a) turbulence. | b) rusting. | c) blockage. | d) decreased resistance. | |

A pipe has a fluid resistance of 10 psi/gpm. If the pressure drop is 5 psi, what is the flow rate of the fluid? |
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a) 10 psi / 5 gpm | b) 10 psi * 5 gpm | c) 5 gpm / 10 psi | d) 5 gpm + 10 psi | |

What is the fluid resistance of a hose that has a flow rate of 10 gpm and a pressure drop of 30 psi? |
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a) 30 psi / 10 gpm | b) 30 psi * 10 gpm | c) 10 gpm / 30 psi | d) 10 gpm + 30 psi | |

If two identical pipes have the same diameter but different lengths, which has the greater fluid resistance? |
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a) the longer pipe | b) the shorter pipe | c) the pipe with no scale build up | d) the pipe with fewer bends. | |

Adding bends or turns to pipes causes the fluid resistance to |
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a) increase. | b) decrease. | c) remain the same. | d) drop to zero. | |

Which of the following is a correct english unit for fluid resistance? |
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a) psi/gpm | b) (N/m2) / (m3/sec) | c) gpm/psi | d) (m3/sec) / (N/m2 | |

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