ORAL
QUESTIONSADD YOUR
QUESTIONS
2ND MATE EXAM ORAL QUESTIONS AND ANSWERS - LATEST QUESTIONS | Page 91
Q. 901) What is phasing and ranging wrt echo sounder
X
PHASING:phasing is a method in echo sounder to determine the depth of water where the speed of stylus changed but scale is constant
Phasing:
Phasing is a method used in echo sounder to determine depth of the sea bottom. In this method the speed of the stylus is kept constant and the range scale is changed from 0-100 mtrs , 100-200 mtrs , 200-300 mtrs and so on. It is important that the echo sounder range changed and regularly checked.
Ranging:
Ranging is technique were the scale of the echo sounder is kept constant and the stylus is varied according to the depth scale chose. E.g.- 0-100, 0-200, 0-300 mtrs ans so on
Q. 902) What is pssa ? example
X
Particularly Sensitive Sea Area
(PSSA) is an area that needs
special protection through action
by IMO because of its
significance for recognized
ecological or socio-economic or
scientific reasons and which may
be vulnerable to damage by
international maritime activities.
The criteria for the identification
of particularly sensitive sea areas
and the criteria for the
designation of special areas are
not mutually exclusive. In many
cases a Particularly Sensitive Sea
Area may be identified within a
Special Area and vice versa.
Q. 903) What is barograph , barogram ? what does curved lines in barogram indicate ? what enteries are to be made on barogram ?
X
barograph is a instrument which record the change in atm press. onboard ship.
for more detail read met book.
barograph is aneroid berometerwhich measuresd contonuous record of pressure on a paper chart,the barograph has continuous trace on the chart called barogram. the curved line indicate utc are two hor interval.after completing barogram entries regarding lat,long,dates,comparison with barometer are to be filled and it is kept along with the weather log books
Q. 904) What is coal loading precautions ? how will you ventilate
XVentilation for coal cargo is done using the surface ventilation procedure....
Precaution for loading coal refer erol fernandes cargo work pg no.47
Q. 905) Fog signal for vessel aground , if more than 100 mts in length
X
three seperate and distinct strokes ring the bell rapidly for about 5seconds in fore part of the vsl and three seperate and distinct strokes and gong shall be sounded rapidly for about 5second in the after part of the vsl and three seperate and distinct strokes.
Q. 906) Marpol annex 6 , what is seca ? example of seca
Xexample of SECA are north sea,baltic sea,north american waters.
- X
0 and united nation carribean region
Q. 907) Ur vessel is in TSS , CBD , you see a pd vessel on your port bow , take action
XRule no:18 says clearly that it does not apply in TSS,NARROW CHANNEL,OVER TAKING.I'll alert him with 5 rapid and short blast and if further Risk of collision exist I'll take action as per Rule 2&8
cbd means her draft is restricted by the available depth and width of the nav. water.she cant alter the co she is following. so, reduce speed,call the other vsl on vhf,inform master,inform vts
Q. 908) What is IMDG classifications ? what is 6(i) ? what is symbol for class 7
XQ. 909) Bilge alarm requirements for bulk carriers as per SOLAS ch12 ?
Xaudible and visual alarm,one when the water level above the inner bottom in any hold reaches height of 0.5 m and another at a height not less than 15% of the depth of hold but not more than 2 m.
