Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Deck General (Set 28)
30:00
|Question 1 of 30
Question Navigator
Correct Incorrect Pending Starred
Question 1 of 30
What is 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?
Browse Questions in Set 28
30 MCQs #1 What is 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? #2 On a tank barge constructed on or after July 1, 1951, what is the required vent size for each cargo tank? #3 According to U.S. regulations, how much hose should you use in transferring oil in bulk? #4 The combined fan discharge rate in an inert gas system is related to the __________. #5 What is the lowest temperature at which the vapors of a flammable liquid will ignite and cause self-sustained combustion in the presence of a spark or flame? #6 The advantages of using an inert gas system on a tank vessel is that it provides __________. #7 What is the primary hazard of liquefied petroleum gas and liquefied natural gas? #8 Which of the following will prevent a flammable atmosphere from occurring in a cargo tank on a tank vessel? #9 A tank vessel transferring non-flammable hazardous cargo in bulk must display warning signs. These signs must __________. #10 The flame screens installed on tank vents that may contain combustible gases, are designed to prevent explosions by which of the following? #11 When loading a tanker, you should do which of the following? #12 How does an inert gas system on a tanker function to prevent explosions in cargo tanks? #13 Insulating flanges minimize the dangers arising from which of the following? #14 When loading a tanker, you should __________. #15 Most crude oils are classified as grade __________. #16 Which commodity would be regulated by subchapter D, Rules and Regulations for Tank Vessels? #17 Which statement is TRUE concerning combustible gas indicators? #18 Before welding is permitted on a fuel tank, it must be certified or declared as which of the following? #19 U.S. regulations state that a person may not transfer oil or hazardous materials to or from a vessel unless each person-in-charge has signed which of the following documents? #20 How many portable fire extinguishers are required in the cargo tank area of an unmanned tank barge during cargo transfer, if the barge has no cargo pumps of her own? #21 Grade D combustible liquids have a maximum flash point of __________. #22 When using the Code of Federal Regulations (CFR's) for Tank Vessels, you see T/O and B/C. What do the T and B tell you? #23 During the ballast voyage, how are the tanks kept cold on an LNG tanker? #24 What is the flash point of a Grade D liquid? #25 The terminal indicates to you that they are going to use a booster pump to assist the discharging operation. You start the discharge, and in a few minutes the pressure drops sharply. This could be a result of which of the following? #26 What form of venting of cargo tanks is allowed for a tank barge certificated to carry grade B petroleum products? #27 When the inert gas system is temporarily unable to maintain a positive pressure, or an oxygen content less than 8%, how should cargo operations be adjusted? #28 Cargo tanks carrying grades D or E liquids on tank barges are required to be vented with which of the following? #29 What is NOT a precaution to be taken when topping off? #30 You are loading 465,000 barrels of cargo oil. At 0900 you find that you have loaded 207,000 barrels. At 1030 you find that you have loaded 223,000 barrels. If you continue loading at the same rate, you will finish at approximately __________.
Question Discussion & Notes
0Have a doubt, memory trick, or exam update? Share your insights with fellow mariners.
Loading mariner discussions...