Environmental Sampling & Analysis Quiz #1

9 Questions | Total Attempts: 176

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Environmental Sampling & Analysis Quiz #1

Environmental sampling is all about taking samples from objects or natural products in our environment and analyzing them to get an answer to a question about the environment of an area. What do you know about collecting samples and testing them? Take this quiz and get to refresh your understanding of the exercise and some of the general considerations in sampling.


Questions and Answers
  • 1. 
    For microbiological samples, you can use plastic, glass, Teflon, stainless steel, aluminum, or brass.
    • A. 

      True

    • B. 

      False

  • 2. 
    The preferred order in sample collection is the following:
    • A. 

      Microbiological samples, inorganic metals, dissolved metals, total metals, VOCs, TRPH.

    • B. 

      VOCs, extractable organics, Dissolved metals, total metals, microbiological samples, inorganic nonmetals.

    • C. 

      Inorganic metals, microbiological samples, dissolved metals, total metals, extractable organics, VOCs.

    • D. 

      VOCs, TRPH, total metals, dissolved metals, microbiological samples, inorganic nonmetals.

    • E. 

      Dissolved metals, total metals, extractable organics, VOCs, inorganic nonmetals, microbiological samples.

  • 3. 
    Duplicate samples are taken to check the _________ of the sampling process.
    • A. 

      Contamination

    • B. 

      Accuracy

    • C. 

      Preciseness

    • D. 

      Conditions

  • 4. 
    Which samples are taken to check analytical performace?
    • A. 

      Composite

    • B. 

      Grab

    • C. 

      Duplicates

    • D. 

      Split

  • 5. 
     Analyte-free water is to be used as rinsing water and for blanks preparation.
    • A. 

      True

    • B. 

      False

  • 6. 
    For extractable organics________________.
    • A. 

      Use plastic containers.

    • B. 

      Use narrow neck glass bottles.

    • C. 

      Use rubber lined caps.

  • 7. 
    What is the chain of custody used for?
    • A. 

      To track samples from collection through analysis.

    • B. 

      For correction actions when needed.

    • C. 

      To avoid any tampering of the sample.

    • D. 

      Both A and B!

    • E. 

      All of the above!

  • 8. 
    The objective of the sampling is to collect a portion of material that represents the actual sample composition.
    • A. 

      True

    • B. 

      False

  • 9. 
    Microbiological samples must be composited when time is a factor within 6 hours of sampling.
    • A. 

      True

    • B. 

      False