Question 1 Remove Topic Question Text Why is gassing-up carried out before loading a flammable cargo into an inerted system? Explanation Gassing-up changes the atmosphere from inert gas to cargo vapour so the system can then be cooled and loaded safely. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 2 Remove Topic Question Text What is the purpose of the ethane vaporizer during gassing-up or pressure make-up operations? Explanation The vaporizer converts liquid cargo into vapour for controlled atmosphere change and pressure support. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 3 Remove Topic Question Text What is the main objective at the cargo tank bottom during initial cooldown? Explanation Initial cooldown aims to reduce temperature differences safely and limit thermal stress. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 4 Remove Topic Question Text What should be prepared before cooling down membrane cargo tanks? Explanation The DTS specifically highlights preparing cofferdam heating before cooldown of membrane containment systems. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 5 Remove Topic Question Text During cooldown of a membrane ship, which spaces require pressure monitoring and control? Explanation Membrane operations depend on careful monitoring of barrier and insulation-related spaces during temperature changes. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 6 Remove Topic Question Text Why is spray cooldown effective? Explanation Spray systems improve heat transfer by spreading liquid into fine droplets with high surface area. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 7 Remove Topic Question Text When should the ship request a loading rate increase from the terminal? Explanation A stable pressure trend indicates the system is accepting cargo in a controlled way. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 8 Remove Topic Question Text What tank pressure range should typically be maintained during loading using the reliquefaction plant? Explanation This operating band helps maintain controlled loading and stable vapour handling. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 9 Remove Topic Question Text What filling limit is stated for this ethane loading revision set? Explanation The referenced loading material uses a 98.0% filling limit. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 10 Remove Topic Question Text What does reference temperature mean in the loading limit calculation? Explanation Reference temperature links allowable filling to the pressure relief valve setting and cargo vapour pressure behaviour. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 11 Remove Topic Question Text Why are cargo tank levels staggered before final topping off? Explanation Staggering levels gives operators better control and reduces the risk of overfilling several tanks at once. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 12 Remove Topic Question Text Why should reliquefaction plant suction normally be stopped before topping off? Explanation Stopping suction reduces surface disturbance and helps obtain a more reliable final level. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 13 Remove Topic Question Text Why is one filling valve often left open after loading is completed? Explanation Leaving an appropriate path open helps avoid pressure build-up from trapped liquid warming up. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 14 Remove Topic Question Text Which of the following is an automatic trigger for emergency shutdown during loading? Explanation Overfill protection is one of the core automatic ESD functions in cargo transfer. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 15 Remove Topic Question Text After a PERC release, what remains attached to the ship's manifold? Explanation The lower section remains on the ship side after release. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 16 Remove Topic Question Text Within what time should liquid line ESD valves close fully and smoothly during the trip test? Explanation The loading material states a full closure time of 30 seconds for liquid line ESD valves. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 17 Remove Topic Question Text Where is the motor located on the deepwell cargo pump arrangement used in the training material? Explanation The deepwell arrangement places the motor on top with a long shaft down to the pump. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 18 Remove Topic Question Text After filling the shaft seal system, what pressure should be maintained relative to tank pressure? Explanation Keeping sealing oil above cargo tank pressure prevents cargo leakage past the seal. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 19 Remove Topic Question Text At the start of cargo pump operation, how much should the discharge valve initially be opened? Explanation A slightly open discharge valve helps control start-up and avoid unstable pump operation. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
Question 20 Remove Topic Question Text When liquid height falls below about 2 meters, what action helps reduce cavitation risk? Explanation Reducing the discharge rate helps protect suction conditions and prevent cavitation as NPSH falls. Option 1 Remove Option 2 Remove Option 3 Remove Option 4 Remove Add Option
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