What precautions should be taken prior to lighting off a boiler? - Answers Purge furnace of
combustible gases
What type of cleaning tool should never be used when cleaning boiler fuel oil atomizer parts? -
Answers Steel tools
While vacuum is being raised on the main unit and the turbine warmed condensate is
recirculated to the main condenser tube to - Answers Ensure the condensation of air ejector
steam
Most auxiliary turbine feed pumps do not require an external source of gland sealing steam
because they - Answers Exhaust to pressures above atmospheric
In a pressure type main propulsion turbine lubrication system, the lube oil service pumps
normally take suction from the main sump. What do they discharge to? - Answers Lube oil
coolers
What is a ballast tank - Answers A compartment within a boat ship or other floating structure
that holds water used to provide stability. To stabilize the ship by flooding certain designed
tanks with seawater.
Where are topside tanks located - Answers On the topside of the cargohold
Describe the aim of the ballast water management convention. - Answers To prevent the spread
of aquatic organisms from one region to another and halt damage to the marine environment
from ballast water discharge.
What should you do to prevent oil from escaping into sea when ballasting through the cargo
piping system? - Answers Start the cargo pump then open the sea suction valves
Which type of pump would be used to transfer fairly large amounts of ballast water at relatively
low pressure? - Answers Propeller pump
Describe method most ballast tanks gauges work on. - Answers Pneumatic pressure
differentials
Which authority carries out an onboard survey prior to the issue of an international ballast water
management certification? - Answers Flag state or classification society
Heavy fuel oil used in a fuel oil and treatment system shown will have its lowest viscosity where?
- Answers At the main engine fuel oil header
To minimize corrosion, fuel oil strainer discs spacers and scraper blades are made of - Answers
Mono metal or stainless steel