Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR

USCG Deck General (Set 23)

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Question 1 of 30

What is the lowest temperature at which a liquid gives off sufficient vapors to form a flammable mixture with air in the presence of an ignition source?

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30 MCQs

#1 What is the lowest temperature at which a liquid gives off sufficient vapors to form a flammable mixture with air in the presence of an ignition source? #2 What is the flash point of iso-Hexane? #3 According to the Chemical Data Guide, the flash point for the grade B flammable liquid piperylene is __________. #4 According to the Chemical Data Guide, to what chemical family does 1,3 - pentadiene belong? #5 What is the Vapor pressure of ethylene oxide at 46° C? #6 What is the Reid vapor pressure of a grade B product? #7 What is the Reid vapor pressure of allyl chloride? #8 What is the boiling point of carbon disulfide? #9 According to the Chemical Data Guide, what is a characteristic of allyl chloride? #10 Which of the following is classified as a flammable liquid? #11 Which is an example of a grade B flammable liquid? #12 What is a grade B flammable liquid? #13 Which is a grade B flammable liquid? #14 Which of the following would be a good extinguishing agent for a grade B product of 1,3-Pentadiene? #15 What is a major health hazard of the product tert-butylamine? #16 Which of the flash points would indicate a grade D combustible liquid? #17 Grade D liquids are those having flash points of __________. #18 An example of a grade D product is __________. #19 Which cargo is considered volatile? #20 You are loading epichlorohydrin onto your barge. According to the Chemical Data Guide, you could expect to detect a leak by smell if the concentration in air was at least __________. #21 According to the Chemical Data Guide, epichlorohydrin is a(n) __________. #22 In order to determine the fire and explosion hazard data for naphtha, you would use that information contained in the Chemical Data Guide for which chemical? #23 Depending on its concentration, which product(s) can be classified as either grade D or E? #24 The flash point of a product is 100°F. What can happen if it is heated above 110°F? #25 According to the Chemical Data Guide, which extinguishing agent should be used on a petrolatum fire in an open area? #26 If a crew member is exposed to phenol by way of skin or eye contact, you should IMMEDIATELY __________. #27 Camphor oil is classified as a __________. #28 Which flash point would indicate a grade E combustible liquid? #29 Grade E liquids are those having a flash point of __________. #30 Heavy fuel oils when spilled are __________.

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