Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Deck General (Set 34)
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Question 1 of 30
Which statement is TRUE of centrifugal pumps aboard tank vessels?
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30 MCQs #1 Which statement is TRUE of centrifugal pumps aboard tank vessels? #2 What is the major function of the deck water seal in an inert gas system? #3 Your ship has loaded 9,000 barrels of fuel oil at a cargo temperature of 35°C (95°F). API gravity is 44°. The volume correction factor (VCF) is .0005. You are bound for New Jersey from Venezuela. How many gallons would you expect to unload if the cargo temperature is 55°F at the discharge port? #4 What percent of oxygen content by volume, must each inert gas system be designed to supply the cargo tanks with a gas, or mixture of gases? #5 By regulation, cargo tank atmosphere must be inert before and during which operation? #6 A single fitting installed in a pipeline that either blanks off the pipe or allows a full flow passage of a liquid through the pipe is referred to as a __________. #7 Each hose used for transferring vapors must __________. #8 The tank barge on which you are preparing to load petroleum is required to have on board one B-II fire extinguisher. What does NOT meet this requirement? #9 Which of the following best describes the heat value of a fuel? #10 A B-II fire extinguisher has a minimum capacity of __________. #11 Which portable fire extinguisher is classified as a type B-III extinguisher? #12 When loading a petroleum cargo which is below average ambient temperatures, You must do which of the following? #13 Which of the following applies to cargo tank safety valves? #14 Where is a permanently installed system of gas detection required? #15 Which tank barges require draft marks? #16 On tank vessels, fully charged fire extinguishers are considered semi-portable when they have a gross weight of more than __________. #17 Which of the signals listed is required to be displayed during the day while bunkering? #18 A tank which carries liquid is dangerous to the stability of a vessel when it is in what state? #19 Deck foam systems, designed to protect cargo areas on tank vessels built after January 1, 1975, must have a supply of foam-producing material to operate the system at its designed rate of foam production for __________. #20 The purpose of inert gas systems aboard tank vessels is to __________. #21 What is the total number of approved low-velocity spray ("water-fog") applicators required aboard a tankship? #22 On a vapor control system, each vessel's vapor connection flange must have a __________. #23 Which of the following grade classifications is assigned to Camphor oil? #24 The tankship Northland is loaded as shown in table BL-0027 below. Use the salmon colored pages in the Stability Data Reference Book to determine the sagging numeral. #25 According to regulations, how many B-II hand portable fire extinguishers are required in the cargo tank area of an unmanned, cargo pump-equipped tank barge engaged in transferring grade B flammable liquids? #26 A tankship has 40 gallons of 6% foam concentrate aboard. Approximately how much foam solution can be produced from this supply? #27 Which statement about the use of portable electric lights in petroleum product tanks is TRUE? #28 Portable fire extinguishers must be provided for the cargo tank area of an unmanned tank barge __________. #29 You have berthed in a port area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo? #30 U.S. regulations require any tankship making a voyage of over 48 hours duration to conduct certain tests not more than 12 hours prior to leaving port. Which of the following must be tested to meet this requirement?
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