Pass Benchmark: 70% (21/30) • Standard: USCG NMC / 46 CFR
USCG Deck General (Set 42)
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Question 1 of 30
When discharging an oil cargo, the first consideration is to __________.
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30 MCQs #1 When discharging an oil cargo, the first consideration is to __________. #2 Which tanker discharge pattern would be the safest and most efficient? #3 You are on a tankship discharging oil. When all of the oil that the main cargo pumps can handle is pumped out of a tank, the remainder is __________. #4 Which tanker discharge pattern would be the safest and most efficient? #5 While discharging a cargo, the stripping of the tanks falls behind schedule. What does this indicate? #6 Where would you expect to find a "charged mist" on a tanker? #7 Your tank vessel is loaded down to her marks, and you find that she has too much trim by the stern. To adjust the trim you may __________. #8 Your tank vessel is fully loaded, and you find that she is down slightly by the head. To adjust the trim, you may __________. #9 When loading bulk liquid cargo, what is the FIRST action you should take if a cargo valve jammed open? #10 Petroleum cargo tanks should not be topped off at deck level when loading on a cold day because __________. #11 A vessel loads edible oil in a deep tank through a manhole at the mid-length of the tank. In order to fill the tank to maximum capacity, what trim should the vessel have? #12 In controlling pollution, which action should be taken after all dirty ballast has been transferred to the slop tank and prior to discharge through the oily water separator? #13 When measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery, check it __________. #14 The term "load on top" is used on many crude oil carriers, what is this a method for? #15 Where do you check when measuring the oxygen content of the cargo tanks prior to loading cargoes requiring vapor recovery? #16 Petroleum cargo tanks should not be topped off at deck level when loading on a cold day due to which of the following? #17 When cleaning a tank by the Butterworth process, you should begin to pump out the slops __________. #18 What is NOT a requirement for the safe and effective use of a crude oil washing system? #19 You are planning to use a crude oil washing system. What precaution must be taken with the source tank for the washing machines? #20 You have water washed your cargo tanks using the fixed machines. What should you do before using portable machines to clean areas screened from the wash of the fixed machine by structural members? #21 The complete details of a crude oil washing system aboard your vessel, including the operating sequences and procedures, design characteristics, a description of the system, and required personnel will be found in the __________. #22 You are cleaning the tanks after carrying a cargo of crude oil. Which statement is TRUE? #23 You have completed a crude oil wash. What action should be taken with the oil in the lines running to the washing machines? #24 What is the maximum percent of oxygen, by volume, allowed to be maintained in the cargo tanks prior to the commencement of crude oil tank washing? #25 What is NOT a requirement for the safe and effective use of a crude oil washing system? #26 In order for you to operate your vessels crude oil wash system, the cargo tanks to be washed must be which of the following? #27 Where will the complete details of a crude oil washing system aboard your vessel, including the operating sequences and procedures, design characteristics, a description of the system, and required personnel be found? #28 You are planning to use the crude oil washing system on your tankship. What is required to prevent electrostatic buildup in the tanks? #29 You have water washed your cargo tanks using the fixed machines. What should you do before using portable machines to clean areas screened from the wash of the fixed machine by structural members? #30 Which of the following shall be used to isolate fire hydrant valves on a crude oil tanker from the crude oil washing system?
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