Question 763 Deck General

70% to pass

Depending on its concentration, which product(s) can be classified as either grade D or E?

A Sulfuric acid
B Formaldehyde solutions 37% to 50%
C 1,1,1-trichloroethane
D All of the above
AI Explanation

The correct answer is B) Formaldehyde solutions 37% to 50%. Formaldehyde solutions with a concentration between 37% and 50% can be classified as either grade D or grade E depending on the exact concentration. This is because formaldehyde solutions in this concentration range are considered hazardous materials and are regulated accordingly by the US Coast Guard. The other options, sulfuric acid (A) and 1,1,1-trichloroethane (C), do not have this dual classification and would be consistently categorized as a single hazardous material grade.

Related Questions
Q@q.QuestionNumber:According to the Chemical Data Guide, which extinguishing agent is NOT recommen... Q@q.QuestionNumber:The term "segregated ballast" is defined in the U.S. regulations as ballast wate... Q@q.QuestionNumber:The plans, for use during emergencies aboard the DEEP DRILLER, are readily avail... Q@q.QuestionNumber:On the COASTAL DRILLER, the level of water in each of two pump bilge pits is mon... Q@q.QuestionNumber:What is the preferable way to extinguish an LNG fire?

Ready to test your knowledge?

Take a Deck General Practice Exam
Official Resources
USCG Navigation Center USCG National Maritime Center Merchant Mariner Credentials
← Previous Question All Questions Next Question →

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience with progress tracking.

Get the App