PTEC 131 - Exam 2 - Fall 14

44 Questions | Total Attempts: 59

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PTEC Quizzes & Trivia

Questions and Answers
  • 1. 
    Provide an example of how both force and area affect pressure.
  • 2. 
    Pressure is defined as ____________
    • A. 

      Pounds per unit of area

    • B. 

      Inches per unit of area

    • C. 

      Force applied to a unit area

    • D. 

      Flow per unit of area

  • 3. 
    The density of a substance relative to the density of water
    • A. 

      Inches of mercury

    • B. 

      Inches of water

    • C. 

      Bars

    • D. 

      Specific gravity

  • 4. 
    Mass per unit volume
    • A. 

      Specific gravity

    • B. 

      density

    • C. 

      Pressure

    • D. 

      Force

  • 5. 
    Instrument used to measure the difference between two pressure points
    • A. 

      Manometer

    • B. 

      Capacitance transducer

    • C. 

      Differential pressure cell

    • D. 

      Strain gauge transducer

  • 6. 
    Small measurement of pressure equal to 0.036 psi at 4 degrees Celsius
    • A. 

      Inches of mercury

    • B. 

      Inches of water

    • C. 

      Bars

    • D. 

      Specific gravity

  • 7. 
    Device that contains a measurement diaphragm and capacitor plates
    • A. 

      Manometer

    • B. 

      Capacitance transducer

    • C. 

      Differential pressure cell

    • D. 

      Strain gauge transducer

  • 8. 
    Measurement of pressure equal to 0.987 atmospheres
    • A. 

      Inches of mercury

    • B. 

      Inches of water

    • C. 

      Bars

    • D. 

      Specific gravity

  • 9. 
    Measures the level of mercury in pounds per cubic inch
    • A. 

      Inches of mercury

    • B. 

      Inches of water

    • C. 

      Bars

    • D. 

      Specific gravity

  • 10. 
    Pressure measuring device consisting of a group of wires that stretch when pressure is applied.
    • A. 

      Manometer

    • B. 

      Capacitance transducer

    • C. 

      Differential pressure cell

    • D. 

      Strain gauge transducer

  • 11. 
    Pressure measuring device with two fluid chamber tube gauges connected by a U-shaped tube.
    • A. 

      Manometer

    • B. 

      Capacitance transducer

    • C. 

      Differential pressure cell

    • D. 

      Strain gauge transducer

  • 12. 
    Atmospheric pressure at sea level is ________  PSIA.
    • A. 

      0

    • B. 

      2

    • C. 

      27.7

    • D. 

      14.7

  • 13. 
    Atmospheric pressure at sea level is ________  PSIG.
    • A. 

      0

    • B. 

      2

    • C. 

      27.7

    • D. 

      14.7

  • 14. 
    The most common measurement scale for a manometer is ___________.
    • A. 

      Bars

    • B. 

      PSIA

    • C. 

      Inches of Mercury

    • D. 

      Inches of Water

  • 15. 
    The most common measurement scale used for vacuum is ________________.
    • A. 

      Bars

    • B. 

      PSIA

    • C. 

      Inches of Mercury

    • D. 

      Inches of Water

  • 16. 
    PSIA stands for  ______________________.
    • A. 

      Pounds per square inch atmosphere

    • B. 

      Pounds per square inch average

    • C. 

      Pounds per square inch absolute

    • D. 

      Pressure per inch absolute

  • 17. 
    Pressure is increased when:
    • A. 

      The number of molecules per unit of area is decreased

    • B. 

      Heavier molecules per unit area are introduced

    • C. 

      Molecules begin to move faster

    • D. 

      The number of molecules are spread out over a larger unit area.

  • 18. 
    When calculating pressure, liquids and gases are considered as fluids.  
    • A. 

      True

    • B. 

      False

  • 19. 
    Directions:  Convert 100 inches H2O to psig using the following Conversion Chart to make the following conversions.   Conversion ChartConvert psig to psiapsig + 14.7Convert psia to psigpsia - 14.7Convert psig to inches of H2Opsig x 27.7Convert psig to inches of Hgpsig x 2.04Convert inches of H2O to psigheight of liquid          27.7Convert inches Hg to psigheight of liquid          2.04 New Units      =      Known Units       x      New Eq Units                                     Known Eq Units       
    • A. 

      204

    • B. 

      49.01

    • C. 

      3.61

    • D. 

      2770

  • 20. 
    Directions:  Convert 4.47 inches Hg to psig using the following Conversion Chart.                                                Conversion ChartConvert psig to psiapsig + 14.7Convert psia to psigpsia - 14.7Convert psig to inches of H2Opsig x 27.7Convert psig to inches of Hgpsig x 2.04Convert inches of H2O to psigheight of liquid  27.7Convert inches Hg to psigheight of liquid  2.04 New Units      =      Known Units       x      New Eq Units                                         Known Eq Units       
    • A. 

      2.19

    • B. 

      9.11

    • C. 

      123.81

    • D. 

      19.17

  • 21. 
    Directions:  Convert 3 psi to inches H2O using the following Conversion Chart.                                                      Conversion ChartConvert psig to psiapsig + 14.7Convert psia to psigpsia - 14.7Convert psig to inches of H2Opsig x 27.7Convert psig to inches of Hgpsig x 2.04Convert inches of H2O to psigheight of liquid     27.7Convert inches Hg to psigheight of liquid   2.04 New Units      =      Known Units       x      New Eq Units                                       Known Eq Units       
    • A. 

      249.30

    • B. 

      83.10

    • C. 

      20.70

    • D. 

      6.12

  • 22. 
    Directions:  Convert 24.2 inches Hg to inches H2O using the following Conversion Chart.                                                       Conversion ChartConvert psig to psiapsig + 14.7Convert psia to psigpsia - 14.7Convert psig to inches of H2Opsig x 27.7Convert psig to inches of Hgpsig x 2.04Convert inches of H2O to psigheight of liquid 27.7Convert inches Hg to psigheight of liquid2.04 New Units      =      Known Units       x      New Eq Units                                  Known Eq Units       
    • A. 

      328.60

    • B. 

      49.36

    • C. 

      670.34

    • D. 

      0.49

  • 23. 
    Directions:  Convert 50 inches H2O to psig using the following Conversion Chart.                       Conversion ChartConvert psig to psiapsig + 14.7Convert psia to psigpsia - 14.7Convert psig to inches of H2Opsig x 27.7Convert psig to inches of Hgpsig x 2.04Convert inches of H2O to psigheight of liquid 27.7Convert inches Hg to psigheight of liquid2.04 New Units      =      Known Units       x      New Eq Units                                  Known Eq Units       
    • A. 

      24.50

    • B. 

      1385

    • C. 

      1.81

    • D. 

      102.00

  • 24. 
    Directions:  Convert 23.2 inches H2O to psig using the following Conversion Chart.                                                      Conversion ChartConvert psig to psiapsig + 14.7Convert psia to psigpsia - 14.7Convert psig to inches of H2Opsig x 27.7Convert psig to inches of Hgpsig x 2.04Convert inches of H2O to psigheight of liquid  27.7Convert inches Hg to psigheight of liquid   2.04 New Units      =      Known Units       x      New Eq Units                                       Known Eq Units       
    • A. 

      8.5

    • B. 

      11.37

    • C. 

      642.64

    • D. 

      0.84

  • 25. 
    Directions:  Convert 300 inches H2O to inches Hg using the following Conversion Chart.                                                         Conversion ChartConvert psig to psiapsig + 14.7Convert psia to psigpsia - 14.7Convert psig to inches of H2Opsig x 27.7Convert psig to inches of Hgpsig x 2.04Convert inches of H2O to psigheight of liquid   27.7Convert inches Hg to psigheight of liquid  2.04 New Units      =      Known Units       x      New Eq Units                                     Known Eq Units       
    • A. 

      10.83

    • B. 

      147.05

    • C. 

      22.09

    • D. 

      220.90

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