GTFC / GAS TANKER FAMILIARISATION COURSE EXIT EXAM 1.0

• The purpose of remotely controlled measuring of tank levels are to measure

1. Height from liquid surface to top stringers in the tank
2. Height of liquid in the tank                       *
3. Height from bottom shell to top stringers in the tank
4. Height of bottom girders in the tank

• One of the following is Not an alarm on an inert gas plant, which one ?

1. Low pressure alarm
2. Low oxygen alarm                     *
3. Deck seal low water alarm
4. Scrubber high water level alarm

• While commencement of loading cargo direct high pressure loading is advisable

1. True
2. False                            *

• On all gas ships, any pipe-work entering or leaving the cargo tank must do so through the _________ of the tank

1. At the end
2. Top                                  *
3. Bottom
4. Forward end

• If a centrifugal pump operating with a positive suction head becomes air bound, your FIRST response should be to ______

1. Vent the casting                       *
2. Tighten the packing
3. Close the discharge
4. Reprime the pump

• How much cleaner is natural gas to burn ?

1. Reducing carbon dioxide emission by 20% to 30%                         *
2. Reducing carbon monoxide emissions up to 75%
3. Reducing nitrous oxide emission by approximately 50%
4. All of the above

• Self contained breathing apparatus – SCBA is also called as

1. Compressed air breathing apparatus – CABA                              *
2. EEBD
3. ELSA
4. None of the above

• The space enclosed by the ships structure in which a cargo containment system is situated called ______

1. Hold space
2. Compressor room
3. Motor room
4. Engine room      

• The liquefied gas is normally carried in its fully refrigerated condition at its atmospheric boiling point of -104⁰ c  is _________

1. Ethylene                                 *
2. Propane
3. Butane
4. Ammonia

• How is cooling / cleaning water supplied to the inert gas scrubber tower ?

1. By the main sea water pumps
2. By the cargo condenser pump
3. By the scrubber sea water pump                     *
4. By the deck seal sea water pump

• Which safety device is fitted on the deck inert as line to monitor the supply condition of the inert gas ?

1. The inert gas high temperature alarm
2. The inert gas low flow alarm
3. The inert gas low pressure alarm                                   *
4. The inert gas reverse flow alarm

• Tank relief V/V used for release of excessive pressure

1. True                                  *
2. False

• What characteristics should insulation materials possess for use in gas carriers ?

1. Low thermal conductivity, ability to bear loads
2. Ability to withstand mechanical damage, lightweight
3. Unaffected by cargo liquid or vapour
4. All the above                               *

• Which of the following is the ultimate source of energy for us ?

1. LNG
   Nuclear
2. Solar                     *
3. CNG

• Why strainers are commonly installed in the cargo piping system ?

1. To protect the cargo handling plant
2. To protect equipment from the damage by foreign objects
3. Both a and b                 *
4. None of the above

• Which of the would you consider essential equipment to carry when working on the deck of ship carrying ammonia ?

1. Gloves
2. Personal o₂ meter
3. Gas mask                          *
4. Personal hydrocarbon alarm

• What is the condition of the inert gas as it is produced by the boilers or inert gas generators ?

1. Free of oxygen and clean                            *
2. Hot and containing soot particles
3. Dirty and saturated
4. Superheated and black or greyish in colour

• For what reason cargo sampling is necessary in gas tanker ?

1. To establish safe conditions prior to cargo transfer
2. To establish that the cargo is within commercially agreed specifications at various pumps
3. Both a and b                                  *
4. None of the above

• What is the MAIN danger to be guarded against when discharging using a cargo heater with sea water as the heating medium ?

1. Over pressurizing of the gas side of the heater
2. Freezing of the water side of the heater                     *
3. Over pressurizing of the water side of the heater
4. Overheating of the gas side of the heater

• Magnesium , titanium , lithium , potassium are classified as

1. Class A fire
2. Class B fire
3. Class C fire
4. Class D fire                             

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