ORAL
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CHIEF MATE EXAM ORAL QUESTIONS AND ANSWERS - LATEST QUESTIONS | Page 200
Q. 1991) Lights for sailing vessel at anchor ? separtion / spacing between lights for the above lights ?
X
Q. 1992) PV valve and PV breaker difference ?
XQ. 1993) What certificates and publications are needed to load grain ?
X
code of safe carriage of grain in bulk,grain loading booklet(A-7) and if required document of authorisation(A-3).
Q. 1995) What are special provision in IMDG code ?
XQ. 1996) What is dwt. , and some calculation on deadweight ?
X
Q. 1998) Difference between flame arrester and flame screen ?
X
Flame arresters are used:
to stop the spread of an open fire
to limit the spread of an explosive event that has occurred
to protect potentially explosive mixtures from igniting
to confine fire within an enclosed, controlled, or regulated location
They are commonly used on:
fuel storage tank vents
fuel gas pipelines
safety storage cabinets for paint, aerosol cans, and other flammable mixtures
the exhaust system of internal combustion engines
Davy lamps in coal mines
overproof rum and other flammable liquors[2].
(I think its not flame screen but flame arrestor screen)
Flame arrestor screen: A mechanical device installed on a storage tank or portable container nozzle designed to prevent the build up of flammable vapors and quickly extinguish a fire in the container by rapidly dissipating heat from the fire. It is made of double mesh wire and extends inside the container from the nozzle.
Q. 1999) What is derelict ? reportings to be done once derelict is sighted ?
X
In a very poor condition as a result of disuse and neglect. a vessel which has been abandoned and is drifting in the sea. no engine, no generator, no crew.
