NGWA Augering & Monitoring Well EXAM ACTUAL EXAM ALL QUESTIONS and CORRECT ANSWERS LATEST UPDATE THIS YEAR

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NGWA Augering & Monitoring Well EXAM ACTUAL
EXAM ALL QUESTIONS and CORRECT ANSWERS LATEST
UPDATE THIS YEAR


QUESTION: The most efficient method of drilling a bedrock monitoring well would be... -

ANSWER-... air rotary with a down-hole hammer.




QUESTION: The difference between the flight OD and the ID of a hollow-stem auger is

generally... - ANSWER-4-5 inches.




QUESTION: The safety of operation of a hollow-stem auger drill rig is compromised when... -

ANSWER-... drilling operations occur closer than the 100' safety zone from an electrical line.




QUESTION: Daily inspection of drilling equipment should include, but is not limited to... -

ANSWER-Inspection of cable, hoses, etc.


All fluid levels


First aid kit available




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QUESTION: The drilling method used to construct a monitoring well should... - ANSWER-...

minimize disturbance of subsurface materials




QUESTION: The "auger fork" is a device that slips through the flights of the auger column and...

- ANSWER-... keeps the augers from "sliding" back into the borehole when removing the augers

from the borehole.




QUESTION: For drilling operations at a hazardous waste site, the exclusion zone is... - ANSWER-

... the area on-site that is potentially contaminated and where workers must wear PPE as

stipulated in the site specific health and safety plan.




QUESTION: An advantage of using hollow-stem augers is... - ANSWER-... no drilling fluid is used,

eliminating contamination by drilling fluid additives.




QUESTION: A disadvantage of using cable tool drilling for monitoring wells is... - ANSWER-...

possible problems in controlling heaving sands.




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