38 TANKER TRAINING SYSTEM ( ADV. )
A O/O- ship means Ore/Oil, but what can she really carry?
+ Either ore or oil
Where do you find the design standards for new ships (oil tankers) ?
+ In regulation 13F of Annex I of MARPOL 73/78
When will the new regulation regarding “phase-out” of single hull tankers enter into force?
+ September 2002
What types of ships are commonly known as Pre-MARPOL tankers ?
+ A ship which DO NOT comply with the requirements for protectively located segregate ballast tanks
Why were first generation oil tankers equipped with trunk-ways or “summer tanks”?
+ To reduce large area of free surface
What is the name of the hydrocarbon, which is composed of one carbon atom and four hydrogen atoms?
+ Methane
What is sweet crude?
+ Crude with low levels of sulphur
Where do we find unsaturated hydrocarbons?
+ In alkenes
What is the max quantity of oil to be discharged into the sea outside of special areas (new tankers)?
+ 1/30 000 of total quantity of the particular cargo
What is the name of molecules, which is capable to polymerise?
+ Monomers
What is the max allowable oil content in “arrival ballast” ?
+ 15 ppm
What are important factors in order to eliminate the risk of fire and explosion in the cargo area on a tanker?
+ Avoid source of ignition & flammable atmosphere
Where do we find information regarding mechanical ventilation in cargo tanks ?
+ SOLAS
What is the most suitable and convenient equipment to use for measuring very low concentration of toxic gas ?
+ Chemical indicator tubes
What is the most common cooling agent?
+ Water
What is maximum oil content in the arrival ballast water ?
+ 15 ppm
What is the max oil content in the ballast/washing water allowed to be pumped overboard outside special areas during voyage ?
+ 30 litres per n/mile
What is the name of the instrument checking the oil content in the ballast / washing water pumped overboard ?
+ Oil Discharge Monitoring Equipment
What is the maximum total quantity of oil allowed to be discharged into the sea from ”new tankers”?
+ 1/30000 of total quantity of the particular cargo
Where to report a discharge or probably discharge of oil at sea ?
+ To the nearest coastal State
With regard to the phase-out timetable,
With regard to the phase-out timetable, what is the principle cut-off date for all single hull tankers ?
+ In 2015
What is the main purpose with an expansion coupling?
+ Make the pipes capable to move back & forth in side the coupling
What is the name of the line, which is used to strip the last amounts of cargo ashore ?
+ Small diameter line
What is the maximum length of an oil tank ?
+ The maximum length 20% L ( L is length of the vessel )
What is required number(s) of wash bulkhead(s) if the length of the tank exceeds 10 % L or 15 m ?
+ Minimum three wash bulkheads
With regard to cargo heating what is the recommended carrying temperature on waxy crude pour points over 100 F ?
+ From 120 F to 135 F
Why are some types crude oils that contain paraffin wax heated ?
+ To stop excessive deposits of wax forming on cooling surfaces
What is VEF ( vessel experience factor)?
+ Experiences difference between the ship cargo figure & the Bill of Lading figure
What is the def of NSV (net standard temperature) ?
+ NSV = NOV corrected to standard temperature
Do the presence of in gas prevent evaporation and loss of cargo ?
+ No
Why should naphtha based condensate never be shipped on unclean tanks containing crude oil ROB ?
+ The condensate can form chemical composition such as asphalt
How to determine the density of the slop after tank washing ?
+ By use of a Hydrometer
What will govern the behavior of the crude oil during the voyage ?
+ The cloud point
What will happen if a centrifugal pump is fitted without a non-return valve on the delivery side ?
+ Full back flow at the time the pump stops
What is the most negative side of a centrifugal pump ?
+ The lack of self-priming capacity
A steam driven piston pump is self-operating, while other stripping systems are depending of the use of cargo pump(s). Which one(s) of the following are depending of cargo pump(s) ?
+ Ejector & the vacuum strip
What will be the manometer pressure after the pump if you are pumping, with a centrifugal pump, water with density of 1000 kg/m3 and the head is 100 m ?
+ 981 kPa
Which international convention dealing fire-fighting arrangement etc. ?
+ SOLAS
What is jettison of cargo?
+ Pump cargo overboard in case of emergency
What will be the ship's supplementary fire alarm signal while alongside a terminal ?
+ By a series of long blast on the ships whistle
What is the maximum oxygen content in the supplied inert gas during operation ?
+ Not exceed 5% by volume
What is the maximum oxygen in the cargo tanks content during operation ?
+ Not exceed 8% by volume
During discharging operating, the inert gas is replacing the discharge cargo. What is the requirement to the inert gas plant's capacity ?
+ At least 125% of the maximum discharge rate
What is the purpose of the scrubber?
+ To cool the volume of the IG and remove contaminants
What is requirement with regard to number of inert gas blowers on a flue gas plant ?
+ At least 2 blowers
What is the requirement to member of non-return device to be fitted in the inert gas supply main ?
+ At least 2 non-return devices
In connection with IG system, what type of device to be fitted on the navigation bridge ?
+ Meter to indicate IG pressure forward of the non-return device