FREE ETC Environmental Sampling & Analysis Questions and Answers

Question 1

What is the first step in preparing for an environmental sampling event?

Accepted Answer

Developing a sampling plan

Answer

Collecting samples from random locations

Answer

Calibrating laboratory equipment

Answer

Sending samples to the lab immediately

Question 2

Which tool is most appropriate for collecting soil samples?

Accepted Answer

Soil auger

Answer

Graduated cylinder

Answer

Spectrophotometer

Answer

Gas chromatograph

Question 3

Why is it important to use clean and sterile containers when collecting water samples?

Accepted Answer

To prevent contamination

Answer

To meet shipping regulations

Answer

To ensure proper chemical reactions

Answer

To maintain sample temperature

Question 4

What does a chain of custody form ensure in sample analysis?

Accepted Answer

Tracks who handled the sample

Answer

Confirms sample temperature

Answer

Labels the sample container

Answer

Stores chemical composition

Question 5

Which parameter is commonly measured in water quality testing?

Accepted Answer

pH level

Answer

Viscosity

Answer

Turbulence

Answer

Hardness of container

Question 6

Why must samples be stored at appropriate temperatures during transport?

Accepted Answer

To preserve sample integrity

Answer

To comply with airline regulations

Answer

To prevent spills

Answer

To reduce analysis time

Question 7

Which of the following is the primary reason for using chain of custody documentation in environmental sampling?

Accepted Answer

To ensure sample integrity and legal defensibility

Answer

To track sampling equipment locations

Answer

To record the weather conditions during sampling

Answer

To monitor laboratory staff schedules

Question 8

What is the most appropriate container material for collecting volatile organic compound (VOC) samples?

Accepted Answer

Glass container

Answer

Plastic container

Answer

Aluminum foil

Answer

Paper bag