CHMM Practice Exam Questions and Answers Fully Solved 100%

A cone of depression occurs: a. during soil vapor extraction b. during air sparging c. during ground water extraction d. near landfills due to a drop in housing prices - c. during ground water extraction A corrosive is: a. any material that will corrode any living tissue with which it comes into contact b. any material that will attack and destroy by chemical action, any living tissue with which it comes into contact c. any material that will attack and destroy, by mechanical action, any living tissue with which it comes into contact d. any material that will not attack and/or destroy, by chemical action, any living tissue with which it comes into contact - b. any material that will attack and destroy by chemical action, any living tissue with which it comes into contact A due diligence assessment: a. is required by EPA for all real estate transactions b. is always expensive and is always required by the lender c. can be cost effective and help minimizes future liability d. must always adhere to ASTM standards - c. can be cost effective and help minimizes future liability A permittee submits renewal application by the deadline stated in the permit. Regulatory agency fails to act on renewal prior to permit's expiration date. What happens next? a. The regulated activity must cease b. The terms of the existing permit will continue to apply, until the renewal application is acted upon by the regulatory agency c. The agency must issue and emergency permitd. The applicant must obtain a court order to continue the regulated operation - b. The terms of the existing permit will continue to apply, until the renewal application is acted upon by the regulatory agency A UST is defined as "any one or combination of tanks which is used to contain an accumulation of regulated substances, and the volume of which including the volume of underground pipes connected thereto is": a. Twenty percent or more beneath the surface of the ground b. One hundred percent beneath the surface of the ground c. Fifty percent or more beneath the surface of the ground d. Ten percent or more beneath the surface of the ground - d. Ten percent or more beneath the surface of the ground About how many gallons of distilled water must be added to 1 gallon of pH=4 leachate in order to adjust the pH to 6? a. 3 b. 9 c. 90 d. 900 - c. 90 Atomic Mass is: a. the number of protons in the nucleus b. the total number of protons & neutrons in the nucleus c. a nuclear particle that has an atomic weight of one and is electrically neutral d. a particle that contains all the positive charge and essentially all the weight of the atom - b. the total number of protons & neutrons in the nucleus BLEVE is the acronym for: a. Boiling Liquids Evaporate Very Expensively b. Boiling Liquids Erode Very Efficiently c. Boiling Liquids End Vapor Explosionsd. Boiling Liquid Expanding Vapor Explosion - d. Boiling Liquid Expanding Vapor Explosion Boiling Point is the temperature at which: a. the vapor pressure of a solid just equals atmospheric pressure b. the vapor pressure of a liquid is greater than atmospheric pressure c. the vapor pressure of a liquid is less than atmospheric pressure d. the vapor pressure of a liquid just equals atmospheric pressure - d. the vapor pressure of a liquid just equals atmospheric pressure CERCLA addresses which of the following environmental issues? a. Release of air toxics at an operating TSD facility b. Site contamination created by past activities c. Generation and disposal of hazardous substances d. Prevention of future site contamination through Superfund development grants - b. Site contamination created by past activities Cobalt-60 has a 5 year half life. If the initial activity of a Cobalt-60 source is 20 mCi, what is the activity after 10 years in mCi? a. 5 b. 0 c. 2 d. 10 - a. 5 Common law is: a. a body of rules and procedures designed to govern and protect persons and properties b. sometimes referred to as "court-made" law c. as real as any law passed by any legislative body d. all of the above - d. all of the above