- Description of camber, sheer, tumble home, Rise of floor by sketch
Camber:-The transverse curvature of the deck from the centerline down to the sides. This camber is used on exposed deck to drive water to the sides of the ship.
Sheer:- The curvature of the deck in a fore & aft directions, rising from midship to the maximum at the ends. It makes a ship more seaworthy by raising the deck at the fore & after ends further from the water and by reducing the volume of water coming on the deck.
Tumble Home:- In some ships, the midship side shell in the region of the upper deck is curved slightly towards the centre line, thus reducing the width of the upper deck & decks above.
Rise of Floor:- The bottom shell of ship is sometimes sloped up from the keel to the bilge to facilitate drainage. The rise of floor is very small.
- What is freeboard and reserve buoyancy ?
Freeboard:-It is the distance from the waterline to the top of the deck plating at the side of the deck amidships.
Reserve Buoyancy:- It is the potential buoyancy of a ship and depends upon the intact, watertight volume above the waterline.
When a mass is added to ship, or buoyancy is lost due to bilging, the reserve buoyancy is converted into buoyancy by increasing the draught. If the loss in bupyancy exceeds the reserve buoyancy the V/L will sink.
- why tankers have less freeboard
The openings in the tankers are small than of other ship & also the permeability is more.
- what do u mean by stability of ship. How a stable ship returns to upright posn if heeled by external force.
STABILITY OF SHIP: The tendency of ship to come back to its upright position when healed by external force is defined as the stability of the ship.
When a ship is healed the centre of buoyancy shifts, this forms a righting lever . thus the wt. of the ship
- what is tender and stiff ship.
Tender Ship:- The ship with a small Metacentric height has a small righting lever at any angle & will roll easily is said to be tender ship. In tender ship, In it the centre of gravity lies below the transverse metacentre. The GM is more than GZ. & these kind of ship are more stable.
Stiff Ship:- The ship with a large Metacentric height has a large righting lever at any angle & has considerable resistance to rolling. A stiff ship is very uncomfortable. In it the Centre of Gravity lies above the transverse metacentre.
- 6. What is free surface effect. How knowledge of free surface effect will be useful. How it is reduced constructionally.
Free Surface Effect:- When a tank of liquid is partially filled & the mass of liquid is moved. This movement affects the Metacentric height. This is called free surface effect.
If free surface effects becomes more, then ship may Capsize.
- Collision bulkhead purpose and location.
- Avoids flooding of ship in case of damage to bows.
- Location is such that it is not so much forward as to get damaged on impact , Neither it should be too far aft so that compartment flooded forward causes extensive trim by head. As a rule located at minimum distance to get maximum space for cargo.
- Minimum at 1/20 of ships length from forward perpendicular
- The collision bulkhead is continuous to upper most continuous deck
- The collision bulkhead is 20% stronger than other bulkheads
- Collision bulkhead is 5 to 8 percent of ships length from forward.
- types of bulkheads. Use of corrugated bulkhead. Sketch same
a. Flat Bulkhead
b. Corrugated Bulkhead
c. Longitudinal Bulkhead
d. Transverse Bulkhead.
e. Watertight Bulkhead
f. Non-Watertight Bulkhead
g. Fire Class A Bulkhead
h. Fire Class B Bulkhead
i. Fire Class C Bulkhead
j. Collision Bulkhead.
k. insulated bulkhead
- Methods of reducing rolling. Sketch of attachment of bilge keel. What ensures ship side will not be damaged if bilge keel suffers a damage.
Various Methods of Reducing Rolling are:-
a. Fin stabliser
b. Bilge keel
10. How much length bilge keel extends to.
It is half of the length of the ship. Starting from midship to fore & aft equally distanced.
11. Mid ship section of bulk carrier and tanker.
12. What is margin line.
Margin Line:- It is the imaginary line which is drawn 75mm below the uppermost continuous deck. It Denotes the limit, upto which can be flooded/ loaded without sinking.
13. What is angle of loll?
Angle of LOL:- It is the angle at which the ship with initial negative Metacentric height will lie at rest in still water.
If the ship is further inclined to an angle less than angle of loll, the ship will sink.
14. what are GZ and KN curves.
15. sketch plimsol marking.
16. How aft peak tank is sealed from stern tube.
The propeller enters the shaft outside from the ship, acting as its barrier. In case of water cooled Stern Tube, Gland packing are used to prevent water ingress inside. But incase of Lignum vitae bearing, some water is allowed to go.
In case of Oil cooled Stern tube, the rubber seals fitted with springs are used.
17. what is block coefficient. If we say that block coefficient of one ship is 0.9 and 0ther 0.95. what does it mean.
Block Coefficient:- It is the ratio of volume of displacement to the product of the length, breadth & draught.
Cb = Volume of displacement / (L x B x d)
When Block coef. If more, it means Volume of displacement is more.
18. Regulations for pumping out ER bilges in Special areas and outside special areas.
Pumping out ER Bilges outside special area:
As per Marpol Annex I, Regulation 15.
Any discharge into the sea of oily or oily mixtures from ships of 400 GRT & above shall be prohibited except when all the following conditions are satisfied:-
1. The ship should be proceeding enroute from Point A to point B.
2. The oily mixture is processed through an oil filtering equipment.
3. The oily content of the effluent without dilution does not exceeds more than 15ppm.
4. The oily mixture does not originate from cargo pump room bilges on oil tankers.
5. The oily mixture, in case of oil tankers, is not mixed with oil cargo residues.
Pumping out ER Bilges inside special area.
1. The ship should be proceeding enroute from Point A to Point B.
2. The oily mixture is processed through an Oil filtering Equipment approved by the Administration.
3. The oil content of the effluent without dilution does not exceeds more than 15ppm.
4. The oily mixture does not originate from Cargo pump room bilges on oil tankers.
5. The oily mixture in case of oil tankers, is not mixed with oil cargo residues.
6. Any discharge into sea of oil or oily mixtures from any ship shall be prohibited in Antarctic area.
19. Name special areas.
As Per MARPOL Annex 1, Regulation 1, the special areas are:-
1. Mediterranean Sea
2. Baltic sea
3. Black sea
4. Red Sea
5. Gulf area
6. Gulf of Aden area
7. Antarctic area.
8. North West European Waters
9. Oman area of the Arabian sea.
20. Regualtions for pumping out p/p room bilges.
As per MARPOL Annex 1, Regulation 34.
Outside Special area.
1. The tanker is not within a special area.
2. The tanker is more than 50 nautical miles away from the nearest land.
3. The tanker is proceeding enroute from Point A to point B.
4. The instantaneous rate of discharge of oil content does not exceeds 30litres/ nautical miles.
5. The total quantity of oil discharged into the sea does not exceeds 1/30000 of the total quantity of the particular cargo.
6. The tanker has in operation an Oil Discharge Monitoring and Control System & slop tank arrangement approved by the Administration.
Inside Special Area
Any discharge into the sea of oil or oily mixture from the cargo area of an oil tanker shall be prohibited while in special area.
21. What to do if bilge oil separator for ER is not working.
1. Make an entry into the Oil Record book.
2. Inform the nearest port authority or the port where the V/L is heading.
22. Explain the procedure to pump out ER Bilge step by step.
a. Inform Chief Engineer.
b. Note down the V/L Position from the bridge.
c. Take the sounding of the bilge tank.
d. Check the 15ppm alarm for its proper working.
e. Open the overboard valve , open sea water valve & bilge pump inlet and outlet valve.
f. Note down the time of starting.
g. Start the bilge pump & fill the OWS with sea water. Let the OWS run on sea water for 10-15 mins.
h. Slowly close the sea water inlet valve & start opening the outlet valve of the bilge tank.
23. SOPEP ? purpose
SOPEP :- Shipboard Oil Pollution Emergency Plan
As per MARPOL Annex 1, Regulation 37.
Every oil tanker of 150GRT and above and every ship other than oil tanker of 400GRT & above shall carry onboard a SOPEP approved by the administration.
The SOPEP consists of:-
1. The procedure to be followed by Master & other person having charge of the ship to report an Oil Pollution incident.
2. The list of authorities or persons to be contacted in event of Oil Pollution incident.
3. A detailed description of the action to be taken immediately by persons onboard to reduce or control the discharge of oil.
4. The procedures & point of contact on the ship for co-ordinating ship board action with national & local authorities.
24. Garbage disposal how.
As per MARPOL Annex V, Regulation for the prevention of pollution by Garbage from ship.
1. The disposal into the sea of all plastics, plastic garbage bags and incinerator ashes from plastic products which may contain toxic or heavy metal residues is prohibited.
2. The disposal of garbage i.e., dunnage, lining & packing materials to be made 25 Nautical miles away from the nearest land.
3. Disposal of food wastes and all other garbage including paper products, rags, glass, metal to be made 12 Nautical miles away from the nearest land.
4. Disposal of food wastes can be permitted if it has passed through a comminuter or grinder , distance is more than 3 Nautical miles from the nearest land. Such comminuted or ground garbage shall be capable of passing through a screen with openings no greater than 25mm.
25. What chapter of Solas refers to Bulk carriers, Chemical tankers, ISM code, ISPS code
Bulk Carrier : SOLAS Chapter 12 Additional Safety Requirement for Bulk Carriers
Chemical Tankers:- SOLAS Chapter 7 Carriage of Dangerous goods.
ISM Code: SOLAS Chapter 9 Management for the safe operation of ship.
ISPS Code: SOLAS Chapter 11-2 Special Measures to enhance maritime security.
26. How to test emergency generator . What all places it supplies.
27. Markings on Life boat and life raft.
As per LSA Code book Chapter 4.
Marking on Lifeboat.
a. Name of Ship
b. Port of Registry
c. IMO Number
d. Lifeboat dimension
e. Carrying Capacity
f. Maker Name
g. Serial number
Marking on Liferaft:
a. Name of Ship.
b. Port of Registry
c. IMO Number
d. Carrying Capacity
e. Maker Name
f. Serial Number
g. Date of last servicing.
28. Types of brakes on life boat.
1. Centrifugal brake
2. Deadman Handle
29. Purpose of limit switches on life boat.
To prevent the overloading of motor, in case the person operating the heaving of lifeboat gets unconscious.
30. Specialty of tanker lifeboat.
31. What type of fixed fire extinguishing system on board. Description. Mainteannace.
32. Types of foams.
a. Low Expansion Foam
b. Medium Expansion Foam
c. High Expansion foam
33. Sprinkler system how tested?
a. Close the section isolating valve, this will raise an alarm indicating zone isolation.
b. Now, open the test valve, if no water comes out, then it means the NR valve placed after the section isolating valve is not leaking.
c. Since, the section after the NR valve remains pressurized, opening of the drain valve will cause the water pressure in the section line to decrease. A pressure switch sensor senses the decreased pressure & raises an alarm.
d. Now, close the drain valve, open the section isolating stop valve. To check the flow switch, open the flow test switch to activate an alarm.
e. All the above alarms will be indicated on the navigation bridge, E/room as well as in the Fire Control Room. The alarm will also indicate the particular zone from where it has risen.
f. If all the alarm conditions are satisfied, close all the testing valves, open the section isolating valve, purge the sprinkler line by air and again keep the line pressurized. Check from the pressure gauge, that proper pressure has been maintained or not.
34. Chemicals in DCO extinguisher.
Sodium bicarbonate & Magnesium striate
35. Sketches of DCP and Co2 extinguisher
36. Maintenance on Co2 system.
- Check the hinges of the CO2 Room door & grease it.
- Check the pressure gauge.
- Check the condition of the blower.
- Check all lightings are properly working.
- If Manual pull cables operate the remote release controls, they should be checked to verify the cables & corner pulleys are in good condition and freely move and do not require an excessive amount of travel to activate the system.
- Check the weight of the CO2 Bottles.
- The discharge piping & nozzles should be tested to verify that they are not blocked. The test should be performed by isolating the discharge piping from the system & flowing dry air or nitrogen from test cylinder or through any other suitable means.
- The hydrostatic test of all the cylinders should be done once in 10 years atleast.
- The alarm to be tested.
- The CO2 Lines should be blown through with service air.
37. Why fire line fitted with relief valve and drain valve
Relief valve:- Relief valve is provided if pumps are capable of developing the pressure exceeding the design pressure of water service pipes, hydrants & hoses. It assists to avoid any overpressure to develop in any part of the fire main.
The fire line is fitted with relief valve to prevent the damage to pipe in case , the V/L is fighting fire with the help of shore while in dry-dock.
Drain Valve :- Drain valve is fitted to drain the fire line when not in use & also prevent the damage to pipe due to icing, while V/L is operating in Sub-zero temperature area.
38. Purpose of isolating valve and where situated
An isolating valve is fitted to separate the section of fire main within machinery space containing main fire pumps from the rest of fire main.
Generally Situated in the Fire station
39. Discharge procedure for Co 2 in Er and Rentry.
40. International shore connection purpose and drawing
As per SOLAS Chapter II-2, Regulation 10 :- Construction Fire Detection, Fire Extinction & Fire Prevention.
Purpose of International Shore Connection is to facilitate such a connection to be used on either side of ships hydrant.
O.D – 178mm
I.D – 64mm
Bolt Circle Diameter- 132mm
Slots in Flange – 4 Holes 19mm diameter equidistantly placed.
Flange Thickness- 14.5 mm
Bolts & nuts – 4 Each of 16mm diameter & 50mm long.
41. Maintenance of fire hoses, coupling, hydrants, nozzles
42. Bunkering procedure and precautions
43. What entries abt bunkers in oil record book.
- Date and time of start & stop of bunkering.
- Position of vessel.
- Quantity of bunker taken.
- Bunker taken in which tank
- Any internal fuel transfer done while bunkering.
44. Purpose of ISM code.
ISM Code:- As per SOLAS Chapter IX. Management for the Safe Operation of Ship.
ISM is International Safety Management Code for safe operation of ships & for pollution prevention as adopted.
Purpose of this code is to provide an international standard for safe management and operation of ships and for pollution prevention.
The objective is to ensure safety at sea, prevention of human injury or loss of life & avoidance of damage to the environment , in particular to marine environment and to property.
45. Where u will find information on code on ship.
On Navigational Bridge
46. What certificate issued for ISM code.
DOC- Document of Compliance . Valid for 5 years
SMC- Safety Management Certificate. Valid for 5 Years
Interim DOC- Valid for 12 months.
Interim SMC- Valid for 6 months
47. What is difference between Non conformity and observation.
48. What is major non conformity
49. Which Imo publication gives u guidelines for watch keeping.
50. What certificate u r appearing for.
Officer in-charge of an engineering watch at Operational Level.
51. Enclosed space entry. How to prepare a tank for enclosed space entry.
52. IG system, function of PV valve, high velocity vent.
53. What is regulation 13G and 13 H
54. What is CAS
CAS- Condition Assessment Scheme
Tanker type 1:- Oil Tankers above 20000 DWT, not having segregated ballast tank(SBT)
Tanker Type 2:- Oil tankers above 20000 DWT having SBT.
Type 1 tankers have already been phased out by 2005.
CAS Applies to only Type 2 tankers. Which are to be phased out in segregated manner by April 2015.
CAS is a method of checking structural integrity of ship, & its certification by regular inspection by authority. The said inspections are carried on annually by authorities.
55. How u measure rudder drop and purpose
Rudder drop is measured by Trammel Gauge.
Purpose:- To know about the rudder jumping.
56. what happens if allowed rudder drop is not kept.
The bearings on which rudder weight is coming will wear down fastly.
57. works done in dry dock.
58. What is transom post?
59. What is the function of Stern frame.
60. draw cross sectional view of stiffner
62.What are the routine tests and maintenance on high expansion foam system?
63. What are the preparations before the ship going for drydocking?
64. Your have just joined a ship then how will you identify that the ship is following the regulations of Marpol Annex 1?
65.What are the entries made in Oil record book?
As per MARPOL Annex 1. Regulation 17. Regulation for the prevention of pollution by oil. Enteries done in Oil Record book are:-
a. Ballasting or cleaning of fuel oil tanks.
b. Discharge of dirty ballast or cleaning water from fuel oil tanks.
c. Collection & disposal of oil residues, sludge & bilge oil.
d. Bunkering of fuel or bulk lubricating oil.
e. Any failure of the Oil Filtering Equipment.
f. Date & time of the operation.
66. p-v valve & p-v breaker settings
67. Alarms and trips of boiler and IG system
Alarms in IG System
a. Scrubber High Level
b. Scrubber low level
c. Deck seal High level
d. Deck seal low level
e. High O2 Content
f. High blower casing temp.
g. Low lube oil pressure alarm.
Trips in IG System
a. High Casing Temp. trip
b. Low lube oil pressure trip.
c. Low/ no flow scrubber water
d. Low / no flow deck seal water.
e. High boiler pressure trip.
f. Low boiler pressure trip.
Alarms in Boiler
a. Low water level Alarm
b. Too low water level alarm.
c. High water level alarm
d. High fuel oil temp. alarm.
e. Low fuel oil temp. alarm
f. Low boiler pressure alarm.
Trips in Boiler
a. Low Low level water trip
b. High boiler pressure trip.
c. Flame failure
d. Low fuel oil pressure trip.
69.EEBD/SCBA checks and operation.
Checks on SCBA
a. Examine all tubing for any cracks, cuts or any damage.
b. Examine inhalation/ exhalation valve and face mask is clear, clean & dry.
c. Open cylinder valve, listen for audible leaks( with positive pressure sets)
d. Check whether correct pressure is maintained inside the cylinder.
e.To check actual cylinder air pressure & that there are no leaks in the system. Open the cylinder valve & read the pressure registered on the gauge, compare with full pressure marked on the cylinder. Close the valve & observe the pressure gauge. Pressure should not drop more than 10 bars in 1 min.
f. Check correct operation of the audible warning whistle. When 80% of Oxygen is consumed whistle should blow automatically telling wearer that only 20%( 10 mins) of air is left inside.
g. Tightness of face mask & wearer’s face be checked for effective tightness of the seal.
h. Pressure gauge to be checked for proper working.
i. Cylinder valve should operate freely.
68. Why emergency bilge suction is BELL MOUTHED?
69. WHAT IS THE DIFF betn stiffeners of collision BKHD and normal BKHD .
70.What safeties on deck on tanker?
71.If fire takes place in CO2, What action to take?
72. Various alarms & trips in COPT System?
73. Diagram of Crankcase relief door?
(a) L.O.Low pressure alarm & trip.
(b) L..O High temperature alarm.
(c) Overspeed trip
(d) High back pressure alarm & trips.
(e) High discharge pressure alarm & trip.
(f) Steam inlet low pressure trip.
(g) Rotor axial movement trip.
(h) I.G. system abnormal trip.
(i) Pump bearing high temperature trip.
(j) Intermediate shaft bearing high temperature trip.
(k) Casing overheat trip.
(l) Emergency trip.
75. What is given in SOLAS Chapter 4, 5 & 11-1?
SOLAS Chapter 4 refers to Radio communication. In this chapter International Navtex, Sea Area A1, A2, A3 & A4 , GMDSS, Digital selective Calling are defined.
SOLAS Chapter 5 refers to Safety of Navigation . This chapter tells about Voyage Date Recorders, Navigation Bridge visibility, steering gear testing & drills.
SOLAS Chapter 11-1 refers to Special measures taken to enhance maritime safety. In this chapter, it is told about Ships Identification Number, Continuous Synopsis Record.
76.Meaning of Panting,Pounding?
Panting :- As the waves pass along the ship they cause fluctuations in water pressure which tend to create an in- and- out movement of the shell plating. The effect is mostly found to be greatest at the ends of the ship, particularly at the fore end. Such effect is termed as Panting.
Pounding:- When a ship meets heavy weather and commences heaving and pitcxhing, the rise of the fore end of the ship occasionally synchronises with the trough of the wave. The fore end then emerges from the water and re-enters with a tremendous slamming effect known as pounding.
77. Function of Bulbous bow?
78. What is COW?
COW :- Crude Oil Washing
As per MARPOL Annex 1, Regulation 33. Regulation for the prevention of pollution by oil .Every crude oil tanker of 20000 Dwt and above shall be fitted with cargo tank cleaning system using crude oil washing.
The purpose of COW is to reduce accumulation of sludge in tanks & reduce the amount of carry over cargo.
During operation of COW, tanks must have oxygen content less than 8 % and under positive IG Pressure.
The advantage of COW is that tank remains clean & ROB cargo is less & hence increases cargo carrying capacity.
79. What IG System Requirement. Why IG System not used on ships which are less than 20000 dwt?
Every oil tanker of 20000 DWT or above should be provided with an IG System.
IG System is not used on ship which are less than 20000Dwt because COW is not applicable to ship which are lesser than 20000 DWT .
80. What is Bilge keel, duct keel , camber, flare?
81. Explain Sprinkler system operation, bulb colour code operation & draw diagram of quartzoid bulb?
82. How to measure propeller drop?
Propeller drop is measured with Poker Gauge.
83. How to calibrate Oxygen Analyser?
a. SPAN Gas:- SPAN gas consists of 99.99% Nitrogen. As per it the O2 analyser should show 0.01% oxygen.
b. The analyzer is kept in fresh air where it should show 20.97% oxygen.
84. Limits of NOx & SO x and why they are not applicable to boilers? What are the precautionary & prevention measure to reduce? What are the certificates concerning this?
Limits of NOx:-
a. 17.0 g/Kw-h when n less than 130 rpm.
b. 45.0 x n -0.2 g/Kw-h when is 130 or more but less than 2000 rpm
c. 9.8 g/Kw-h when n is 2000 rpm or more.
Limits of Sox.
Outside SECA the Sox content in fuel oil should not be more than 4.5 %.
Inside SECA the Sox content in fuel oil should not be more than 1.5 %.
If the fuel oil taken in SECA is having more than 1/5 % Sox content , then Exhaust Gas Cleaning system be fitted to reduce the total emission of sulphur oxides from ship, including both auxiliary and main propulsion engines to 6.0 g Sox / Kw-h or less.
85. Difference between Major Non conformity & Non-conformity?
86. What is free-surface effect?
87. Regulation regarding air pollution?
MARPOL Annex VI:- Regulation for the prevention of pollution by air from ships.
Regulation 12:- Ozone depleting Substance
Any deliberate emissions of Ozone depleting substance shall be prohibited. Deliberate emissions include emissions occurring in the course of maintaining, servicing, repairing or disposing of systems or equipments.
New installations which contain ozone depleting substance shall be prohibited on all ships, except that new installations containing HCFCs are permitted until January 2020.
The substances & equipment containing such substances, shall be delivered to appropriate reception facilities when removed from ships.
Regulation 13:- Nitrogen Oxide(NOx)
This regulation applies to the diesel engine with a power output of more than 130 KW which is installed on a ship constructed on or after 1st January’2000. & to diesel engines with a power output of more than 130 KW which has undergone major conversion on or after 1st January’2000.
This regulation does not applies to emergency diesel engine, engines installed in lifeboats & any device intended to be used solely in case of emergency.
Regulation 14:- Sulphur Oxide (Sox)
The sulphur content of any fuel used on board ships shall not exceed 4.5% m/m.
In SECA Area the sulphur content should not exceed 1.5% m/m.
If in SECA area fuel used is having sulphur content more than 1.5% m/m , then exhaust gas cleaning system to be provided to limit emission of Sox to 6.0g Sox /Kw-h or less.
Regulation 15:- Volatile Organic Compound
Regulation 16:- Shipboard Incineration
88. Why the ship's rudder stock diameter is always preferred to be more than 230 mm?
89. what is the difference between flame arrester and flame screen?
Flame Arrrester will not let the fire to come out from inside.
Flame Screen will not let the fire to come in from outside.
90. what is a sole plate?
shoe plate is dat plate which is placed at the bottom of sterframe
it helps give the ship a streamline finish and also reduces eddies formed
91. diffrence between code & convention?
onvention - meeting (example imo convention)
code - a book which has recommendatory legal mandate, published after a convention.
example imdg code, blu code
- Which Type of Pump is used to Drain Water from Cahin Locker?
- What Is the Weight of a CO2 Bottel of Fixed Installation System.
- What are the safety on Engine room Overhead Crane.
- Overload trip.
- Limit switch at fore & aft side.
- Limit switch port & starboard movement.
- Switch button have non-metallic body.
- Emergency stop.
- How You will Identify in Fixed CO2 Installation System that Which Particular Bottel is Leaking.
- How We Will Drain The Water & Mud From Chain Locker.
- What are the regulation regarding use of Low Expansion Foam system on deck?
The ratio of low expansion foam system used on deck should not have ratio more than 1:12.
- NRT & GRT of your ship and definations?
NRT :- Net Registered Tonnage
It is the tonnage obtained by deduction from the Gross Tonnage, the tonnage of spaces which are reqd. for the safe working of ship:
(a) Master’s Accomodation
(b) Crew Accomodation and allowance for provison stores.
(c) Wheel House, Chartroom, Navigation Aids room
(d) Space for safety equipment & batteries.
GRT :- Gross Registered Tonnage
The Gross Registered Tonnage is found by adding to the Underdeck Tonnage, the tonnage of all enclosed spaces between the upper & the second deck.
- Emergency Generator- Location & services supplied.
Location:- Should be on the uppermost continuous deck outside from the engine room but not located at the forward collision bulkhead.
(a) For a period of 3 Hrs at Emergency lighting at every muster & embarkation station.
(b) For a period of 18 hrs at:-
(i) In all service & accommodation alleyways, stairways & exits, personal lift cars & personnel lift trunks.
(ii) In the machinery spaces & main generating stations including their control positions.
(iii) In all control stations, machinery control rooms, and at each main & emergency switchboard.
(iv) At all stowage positions.
(v) At the steering gear.
(vi) At the fire pump & in all cargo pump rooms.
(vii) The navigational lights.
(viii) VHF & MF Radio installation.
(ix) The ship earth radio station.
(x) At all internal communication equipment
(xi) The fire detection & fire alarm system.
(xii) Intermittent operation of the daylight signalling lamp & all integral signals that are required in an emergency.
- Emer. Fire pump-Location ,Capacity & how to check performance?
Location of Emergency Fire pump :- The space containing the pump should not be contiguous to the boundaries of machinery space or those spaces containing main fire pumps.
Normally located at : Steering Gear Compartment, Aft of Collision Bulkhead, Shaft Tunnel, Forward part of ship.
Capacity:- Shall have capacity not less than 25 m3/hr & pump should be able to deliver water at following pressure with two hydrants opens:
Passenger Ship above 4000 GRT :- 4 bar
Passenger ship below 4000 GRT :- 3 Bar
Cargo ship above 6000 GRT :- 2.7 Bar
Cargo ship below 6000 GRT :- 2.5 bar
The throw at the top most deck should not be less 12 meter.
- Precautions to be taken before entering battery room?
- Lifeboat lowering procedure?
- Minimum of 5 persons are required to lower the L/B.
- One person goes inside the L/B and passes the end of toggle painter and plugs the drain.
- Check all lifeline and falls are clear of L/B.
- Make fast the other end of toggle painter on a strong point forward of the ship.
- Remove forward and aft gripes and both person stand by for passing bowing tackle and tricing pendant.
- Remove harbour safety pin.
- Make sure the ship’s side is free of everything, no water or garbage is there.
- Now, one person lift’s the dead mans handle slowly which releases the brake.
- The boat along with cradle sides downward till it comes to the embarkation deck.
- By pulling tricing pendant , bring it alongside the embarkation deck.
- Persons embark inside the boat.
- Now, tricing pendant is removed and the whole load comes on falls.
- Now, boat is further lowered with deadman’s handle.
- As soon as the boat comes around 1meter above the sea-water, it can be released.
- What are the lifeboat equipments?
- Sufficient buoyant oars
- 2 boat hook.
- 2 Buckets
- 6 Hand Flares
- 2 Rocket parachutes
- 2 smoke signals.
- Food Ration.
- 1 knife and 3 tin opener.
- Hand Pump
- Tow line
- Anti-sea sickness tablets
- 1 set of fishing tackles.
- Waterproof torch
- Day light signalling lamp.
- Radar reflector
- First Aid Kit
- Sea Anchor
- 1 Whistle
- Portable fire extinguisher
- Thermal Protective aid
- What is Garboard Strake?
Strake adjacent to the keel on each side of the ship is called Garboard strake.
- What is sheer strake?
Uppermost strake in the side shell.
106. What is Stringer plate?
Outboard deck strake.
107. What is stealer strake?
Number of adjacent strakes fitted at the end of the ship area called stealer strake.
108. What all things are written in BDN( Bunker Delivery Note)?
a. Name of Barge/Port
b. Position of vessel.
c. Delivery date
d. IMO number
e. Gross tonnage of Vessel
f. Vessel name
g. Time of starting
h. Time of stopping
i. Product name & code
j. Viscosity at 50 Degree C
k. Density @ 15°C
l. Water Content % V/V
m. Flash Point ° C
n. Sulphur Content % m/m
o. Pour Point °C
p. Quantity taken @ 35°C