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2ND MATE EXAM ORAL QUESTIONS AND ANSWERS - LATEST QUESTIONS | Page 89
Q. 881) How do prevent air pollution through bunkering ?
X
Q. 883) During loading your PV breaker blows ? actions ?
X
Stop Loading. Let the pressure of tank falls to level below the pressure setting of PV valve. Close individual tank IG branch valve.Verify the Cause of Over pressurization of Tanks. Fill up PV breaker (Glycol + water) and resume loading
Remember to check the Pressure sensor setting installed in each tanks after sailing
Q. 884) What is passivation ?
X
Passivation is the process of making a material "passive", usually by the deposition of a layer of oxide on its surface. In...
Q. 886) While dischaging in a tanker you obsereve tank pressures reducing. what are dpossible reasons and how ? explain your actions as
Xwhen disch igs is supplying inert gas contonously to da tanks so may be igs is not working or experiencing problems or pv v/vs having a leakage
may be the vaccum side of the pv valve is not working or , the vrl if used, the valve of the vrl is not opened or the vrl line is chocked by some solidifying cargo like hmd or the tank pressure sensor is not working prperly ... these or some possible ways.
check venting system , may be some vent open if falling slowly , drastic redustion I.G stopped .... if vent open close it ... ig failure inform E/R ... ALL CASES CALL C/O....This is wat is expected ...
Q. 887) What is damage stability manual ?
X
It contains stability of ship during its damaged condition and capacity to resist damage situation caused by flooding due to the water overflow into bilges
