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2ND MATE EXAM ORAL QUESTIONS AND ANSWERS - LATEST QUESTIONS | Page 91
Q. 901) Explain sewage treatment plant and values ?
X
type approved by admin.
test results laid n ispp cert.
shal nt produce visible float nor discoloration of surrounding water.
Q. 903) Marpol annex 4 and 5
X
Annex IV Regulations for the Prevention of Pollution by Sewage from Ships
Annex V Regulations for the Prevention of Pollution by Garbage from Ships
Q. 904) Quote rule 19 , rule 37 and annex 4
X
1> a gun or other explosive fired
2>a cont sounding of fog signal
3>rockets or shells
4> n.c. flag
5>mayday
6> sos
7> ball, square ,ball
8> flames, smoke signal, raising lowering of arms
Q. 905) What is squat ? how will you reduce effect of squat ?
X
The Change in ships trim when being at motion or being stationary is called squat. The Squat is mainly experienced over in shallow waters it increases with square of the speed of the ship in order to reduce squat ship speed has to be reduced squat is calculated by the formulae
squat= V(square)/100*Cb
Squat is a bodily sinkage of a ship due to its movement through the water and is depend on speed, ship form, and the underwater clearance.
The overall decrease in the underkeel clearance fwd. and aft is called squat.
TO ELIMINATE SQUAT;
reduce speed,
Sufficiant UKC is to be kept to avoid SQUAT.
Q. 906) What is cargo securing manual ? contents , diff b / w cargo securingmanual and lashing manual ?
XQ. 907) What is raster charts , vectors charts , which is better and why
XVector charts are more advantageous than raster chart because vector chart enables user to select many alarms, such as depth alarms, various modes such as head up and north up, Zooming facility, Add or remove the data required.
as it is in vector charts info stored in layers so u can select the reqd info which v cant do on vecor charts .
Q. 908) What is osc wrt iamsar manual ? what is the duties of osc ? what is mrcc , mcc , lut
XOSC - On scene Coordinator
MRCC - Maritime Rescue Coordination Center.
MCC - Mission coordination center
LUT - Local User Terminal
about duties of OSC refer IAMSAR vol3
Q. 910) 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.
