Question 484 Deck General

70% to pass

What is the threshold limit value (TLV) for a product of PHTHALIC ANHYDRIDE?

A 1 ppm
B 2 ppm
C 3 ppm
D 4 ppm
AI Explanation

The correct answer is A) 1 ppm. The threshold limit value (TLV) for phthalic anhydride is 1 ppm, as established by the American Conference of Governmental Industrial Hygienists (ACGIH). This TLV represents the maximum airborne concentration of a substance to which most workers can be exposed without adverse health effects. The other answer choices are incorrect as they do not match the established TLV for phthalic anhydride.

Related Questions
Q2934:The S.S. Sheet Bend arrives in New York after encountering heavy weather on a vo... Q643:What does item "D" refer to in illustration D045DG of a 30-ton pedestal crane? ... Q1290:Steam driven pumps are considered, by regulations, sources of vapor ignition if ... Q237:While the Pilot is maneuvering the vessel to a dock, what is the primary respons... Q4352:When two ballast pumps used for deballasting a single tank start cavitating, you...

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 →

Pass Your Coast Guard Licensing Exams!

Study offline, track your progress, and simulate real exams with the Coast Guard Exams app

Download on App Store Get it on Google Play Download for Mac