Equipment Theory

28 Questions

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Equipment Quizzes & Trivia

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Questions and Answers
  • 1. 
    Gases being composed of discrete molecules in random motion" best describes
    • A. 

      The ideal gas law

    • B. 

      The kinetic theory of gases

    • C. 

      Daltons Law

    • D. 

      Charles Law

  • 2. 
    The Kinetic activity of gases is largely dependent upon
    • A. 

      Their concentration

    • B. 

      The pressure

    • C. 

      The temperature

    • D. 

      They type of gas

  • 3. 
    Chambers A and B are connected by high pressure tubing and separated by a valve. If chamber A contains 500psi of gas and chamber B contains 50 psi of gas, what will occur when the valve is opened?
    • A. 

      The pressures in the chambers will remain equal

    • B. 

      Chamber A will be pressurized by chamber B

    • C. 

      Gas will flow from chamber A to chamber B until pressures equalize

    • D. 

      The pressure in chamber B will increase to a level greater than in Chamber A

  • 4. 
    Pascals Law describes
    • A. 

      The relationship between volume and pressure of gas

    • B. 

      The relationship between pressure and temperature of a gas

    • C. 

      The relationship between temperature and volume of a gas

    • D. 

      The equal distribution of pressure transmitted by a fluid

  • 5. 
    A device used clinically to measure small pressures is termed a:
    • A. 

      Mercury barometer

    • B. 

      Aneroid barometer

    • C. 

      Manometer

    • D. 

      Reducing valve

  • 6. 
    A Bourdon Gauge
    • A. 

      Uses coiled tube

    • B. 

      Uses a sealed diaphragm

    • C. 

      Measures pressure

    • D. 

      Measures flow

  • 7. 
    The Statement, "As temperature increases, pressure also increases, " best describes"
    • A. 

      Gay-Lussac's Law

    • B. 

      Daltons Law

    • C. 

      Henrys Law

    • D. 

      Charles Law

  • 8. 
    Bernoulli's theorem best describes"
    • A. 

      The relationship between temperature and pressure of a gas

    • B. 

      The relationship between volume and pressure of a gas

    • C. 

      An energy balance or conservation between velocity and pressure

    • D. 

      The relationship between pressure of a gas and its ability to dissolve into a liquid

  • 9. 
    An air entrainment mask operates by mixing source gas (oxygen) and room air. This device operates using:
    • A. 

      Viscous shearing and vorticity

    • B. 

      Bernoulli's theorem

    • C. 

      Venturi's principle

    • D. 

      Poiseuill'es Law

  • 10. 
    You are analyzing the FIO2 of a patent's HAFOE device, which reads 0.85. The entrainment port is set at 40%. Why would the analyzed oxygen concentration differ so much from the setting?
    • A. 

      The analyzer is malfunctioning

    • B. 

      The patient's respiratory rate is affecting oxygen delivery

    • C. 

      More room air is being entrained

    • D. 

      There may be an obstruction distal to the entrainment port

  • 11. 
    A gases velocity is said to be choked when:
    • A. 

      Velocity can no longer increase

    • B. 

      A maximum temperature is reached

    • C. 

      Pressure is at a maximum

    • D. 

      The concentration is at a maximum

  • 12. 
    A patient with reactive airway disease is experiencing bronchospasm. The patient's work of breathing has dramatically increased in the last few minutes. This is an example of:
    • A. 

      Poiseuille's Law

    • B. 

      The Bernoulli Theorem

    • C. 

      Increased airway resistance

    • D. 

      Decreased lateral pressure

  • 13. 
    The rate of gas diffusion into or out of a liquid is directly proportional to the partial pressure of the gas" best describes:
    • A. 

      Charles Law

    • B. 

      Ficks Law

    • C. 

      Henry's Law

    • D. 

      Gay-Lussacs Law

  • 14. 
    Which of the following is constructed in a similar way to a thermos bottle?
    • A. 

      Oxygen Cylinder

    • B. 

      Oxygen Concentrator

    • C. 

      Liquid Oxygen Reservoir

    • D. 

      Oxygen Piping System

  • 15. 
    Safety features incorporated into regulators or reducing valves include:
    • A. 

      DISS outlet

    • B. 

      PISS inlet

    • C. 

      American Standard inlet

    • D. 

      Pressure relief valves

  • 16. 
    Which of the following is (are) true for an "H" size oxygen cylinder?
    • A. 

      When full, it contains 2200 psi

    • B. 

      It contains 22 cubic feet of gas

    • C. 

      It will have "3AA" stamped on the shoulder

    • D. 

      It contains 244 cubic feet of gas

  • 17. 
    The marking "3AA' indicates:
    • A. 

      The cylinder type

    • B. 

      The contents of the cylinder

    • C. 

      The cylinder serial number

    • D. 

      The cylinder size

  • 18. 
    The lightest compressed gas cylinder for ambulatory use is a (an):
    • A. 

      3AA steel cylinder

    • B. 

      Aluminum (3AL) cylinder

    • C. 

      Fiber-wrapped cylinder

    • D. 

      Portable liquid reservoir

  • 19. 
    A device that mixes air and oxygen is termed a (an):
    • A. 

      Concentrator

    • B. 

      Oxygen enricher

    • C. 

      Oxygen proportioner

    • D. 

      Reducing valve

  • 20. 
    When troubleshooting an oxygen concentrator, you find that the device is operating yet you are unable to obtain the desired flow of oxygen-enriched gas. Possible problems include:
    • A. 

      A tripped circuit breaker

    • B. 

      Obstructed delivery tubing

    • C. 

      Obstructed humidifier

    • D. 

      A dirty filter

  • 21. 
    Advantages of transfixing portable cylinders from a home oxygen concentrator include:
    • A. 

      Convenience

    • B. 

      Cost savings

    • C. 

      Speed of filling the cylinder

    • D. 

      All of the above

  • 22. 
    When making a call on a home care patient, you weigh her liquid reservoir, which registers 80lbs. You know the manufacturer's weigh to be 60lbs, and that your patient uses 3L/min oxygen. how much gas does her reservoir contain, and can she wait for 5 hours before your company's delivery truck arrives?
    • A. 

      12,340 L oxygen remaining

    • B. 

      5484 L oxygen remaining

    • C. 

      30 Hours duration remaining

    • D. 

      84 Hours duration remaining

  • 23. 
    An advantage of using a demand pulse flow oxygen delivery system in the home care environment is that:
    • A. 

      Less oxygen is used

    • B. 

      It is less expensive for the patient

    • C. 

      A humidifier is not required

    • D. 

      None of the above

  • 24. 
    When selecting an oxygen-conserving device for ambulatory use, it is important to:
    • A. 

      Select the unit based on overall cost

    • B. 

      Perform an ambulatory oxygen saturation trial using the unit

    • C. 

      Draw arterial blood gases before and after ambulation

    • D. 

      None of the above

  • 25. 
    A potential disadvantage to the CAIREHELIOS system is:
    • A. 

      It is heavier than other portable liquid reservoirs

    • B. 

      It has a smaller capacity than competing units

    • C. 

      It must be used with the HELIOS7 dual lumen cannula

    • D. 

      It can only provide flow rates of put to 2 L/min

  • 26. 
    Back pressure will affect the accuracy of which of the following flowmeters?
    • A. 

      Compensated Thorpe Tube

    • B. 

      Uncompensated Thorpe Tube

    • C. 

      Bourdon flowmeter

    • D. 

      All of the above

  • 27. 
    A back pressure compensated flowmeter:
    • A. 

      Reads correctly if back pressure is applied

    • B. 

      Reads lower than the actual flow when back pressure is applied

    • C. 

      Has the needle valve downstream from the Thorpe tube

    • D. 

      Has the needle valve upstream from the Thorpe tube

  • 28. 
    When using a fixed orifice flowmeter, it is important to:
    • A. 

      Calibrate it using a calibration flowmeter

    • B. 

      Use the correct inlet pressure

    • C. 

      Ensure that there is no restriction in the inlet tubing

    • D. 

      Adjust the regulator to the pressure on the label