WorksheetsSCS1 sample 4
Total questions: 38
Worksheet time: 3hrs 10mins
Define the term lightship displacement
The weight of a vessel when empty, i.e weight of the hull and machinery
The total weight of a ship remaining after deducting the weight of the cargo aboard
The total weight of the stores, bunkers, fresh water and cargo carried by a ship
The weight of a vessel when empty, i.e weight of the hull
What do you understand by the term 'Freeboard'
Waterline to the keel
Waterline to the main deck
Waterline to the center of gravity
Waterline to the center of buoyancy
Define the term deadweight
the total weight of a ship remaining after deducting the weight of the cargo aboard
Under deck tonnage
The total weight of stores, bunkers, fresh water and cargo carried by a ship
The total weight of a ship and all its contents
In the course of a voyage a vessel is passing from fresh water to salt water. What would be the effect?
An additional volume of water is displaced
A lesser volume of water is displaced
Draft increases
The volume of water displaced remains the same
A Ship in unstable or neutral equilibrium is made stable by:
Lowering the ship effective center of gravity
Raising the ship effective center of gravity
Loading cargo on main deck
Discharging half of a fresh water tank
What would the ship's stability condition be if the center of gravity coincided with the metacenter?
The ship would have excessive stability
The ship would be in a condition of neutral equilibrium
The ship would have positive GM
The ship would have negative GM
In the course of a voyage, fuel is consumed from tanks located in the bottom of the ship. What effect would this have on the stability of the ship?
It would increase the ship's stability
It would decrease the ship's stability
It would have no appreciable effect on the ship's stability
It would improve the seaworthiness of the ship GM
The point at the intersection of vertical lines through the centers of buoyancy in initial and slightly inclined positions is:
The center of gravity
The metacenter
The righting moment
The righting lever
The combination of a force applied at a distance is called a:
Lever
Heel
Moment
Righting lever
A Ship is considered to be too 'tender'. What is the best action to take?
The effective center of gravity of the ship should be lowered within that ship
The effective center of gravity of the ship should be raised within that ship
All double bottom tanks should be emptied
Weights should be loaded on deck
What would the ship's stability condition be if the center of gravity is above the metacenter?
The ship would have excessive stability
The ship would have a positive GM
The ship would have a negative GM
The ship would be in a condition of neutral equilibrium
On a ship, when ballast is discharged from double bottom tanks:
The center of gravity of the ship lowers
The center of gravity of the ship is above the metacenter
The center of gravity of the ship raises
The center of gravity of the ship doesn't change
A tank only partially filled will cause a loss of effective GM. This effect is maximum when:
The tank is three quarters full
The tank is half full
The tank is less than full
The tank is emptied
Moment of statical stability may be defined as
The moment to return the ship to the equilibrium position when inclined by an external force
The moment to return the ship to the initial position when inclined by an external force
The moment to return the ship to the unstable position when inclined by an external force
None of the above
Why should fish not be carried on deck?
The weight of the fish raises the center of gravity of the ship and the vessel may become unstable
The weight of the fish lowers the center of gravity of the ship and the vessel may become unstable
The weight of the fish doesn't change the center of gravity of the ship, but the vessel may become unstable
The weight of the fish lowers the center of gravity of the ship above the metacenter
The safe functioning of the roll dampening paravane is largely dependent on:
The towing speed and on their complementary operation
The size and shape of the equipment
The type of vessel
All of the above
In bad weather, beam seas can cause:
Excessively long and slow rolling period from side to side
Excessive rolling that can cause cargo to shift, creating a dangerous list
Excessively short and slow rolling period from side to side
Excessive pounding
An inclining experiment is carried out:
When the ship is as near to the light condition as possible
When the ship is as near to the loaded condition as possible
When there is maximum free surface within the ship
None of the above
Carrying heavier gear may compromise vessel stability and righting moments because:
There is a reduction of freeboard
The center of gravity will be raised
Deck edge immersion will occur at smaller angles of heel
All of the above
"Weathertight" means:
That in any sea conditions water will not penetrate into the vessel
Protection against rain and snow
Capable of preventing the passage of water through the structure in any direction under a head of water for which the surrounding structure is designed watertight.
Protection against water drops falling vertically
Hatches refers to:
The cover that closes and opening in the deck
The raised portion of an opening in a vessel's deck
The strengthened corners of openings in a vessel's deck
The opening in a vessel's deck
What is an advantage of using aluminum alloy for the construction of vessels?
It is much cheaper than other materials
It requires much less maintenance
It is light weight and may aid stability
All of the above
Freeing ports on a fishing vessel are necessary:
To provide an emergency escape for the crew in case of capsizing of the vessel
To provide rapid and effective removal of water from the deck of the vessel
To provide a safe and easy way to load fish in cargo holds
In case a vessel has to leave the harbor rapidly in an emergency
Flush deck scuttle covers on a fishing vessel shall:
Be weathertight
Be effectively retained on hinges or by a chain permanently attached to the ship's structure
Have a specified minimum diameter
Be in sufficient number as specified in the Fishing Vessel Inspection Regulations
A small underwater hull breach resulting from an impact with floating debris could be temporarily repaired to allow the vessel to return to port by:
Using polyester resin and fiberglass mat
ticking a rubber patch on the breach
Pounding softwood wedges into the breach with a hammer
Inserting cement into the breach
Water is flowing from a damaged through-hull fitting and is flooding the vessel. It could best be temporarily repaired by:
Inserting quick cement into the through-hull fitting
Sticking a rubber patch on the through-hull fitting
Pounding softwood wedges into the through-hull fitting
Pounding conical soft wood plug into the open through-hull fitting
When a CO2 smothering system is installed on a vessel, means shall be provided for:
Automatically stopping all ventilation fans supplying the space protected
Automatically shutting all fire dampers in ventilation ducts
Automatically triggering the general alarm bell of the vessel
Automatically stopping the generators
All aspects of vessel's hull, machinery and equipment should be in a good state of repair and in good working order, especially:
When preparing the vessel for any inspection
When the vessel is caught in bad weather
To maintain insurance coverage
At all times
What are anodes used for?
For filling seams of wood planks with oakum to ensure water tightness
For the protection of plating from the action of bilge water
For the protection of metal from corrosion
Anodes can be used for all of the above
Under the Canada Shipping Act 2001, who shall ensure that a vessel, its machinery and equipment meet the requirements of the regulations?
The authorized representative
The skipper
The crew
The Marine Safety Inspector
F/V Skate has a displacement of 320MT and a FWD trim of 1.0m. What will be the value of the flooding angle?
26.82 degrees
40 degrees
50.82 degrees
60.82 degrees
F/V Skate has its Fuel Aft Port and Starboard tanks filled to 98% of their capacity with fuel oil of 0.87 specific gravity. What is the height of the vertical center of gravity of the fuel contained in those two tanks?
3.232 m
6.464 m
4.635 m
8.03 m
F/V Skate has its Fuel Aft Port and Starboard tanks filled to 98% of their capacity with fuel oil of 0.87 specific gravity. Find the total free surface moment for those two tanks?
1.44 MT-m
2.88 MT-m
8.03 MT-m
16.05 MT-m
F.V Skate has a displacement of 270 MT and a FWD trim of 1.0m. Find the new draft if a weight of 8 metric tons is loaded.
3.50 m
3.55 m
3.60 m
3.65 m
F.V Skate has a displacement of 303 MT and a FWD trim of 1.5 m. Find the GM if the vessel's KG is 4.11 m?
8.72 m
4.61 m
3.75 m
0.50 m
F/V Skate has a displacement of 270 MT and a FWD trim of 1.5 m. What is the maximum height that its ship's center of gravity must not exceed in order to comply with all stability criteria?
0.350 m
1.5 m
3.982 m
4.015 m
F/V Skate CONDITION 9 ("WORST OPERATING CONDITION WITH TOPSIDE ICE PORT ARRIVAL FULL LOAD 10% CONSUMABLES") at what height above the keel has the center of gravity of the accumulated topsides ice been considered?
10% of the depth above deck
10% of the depth below deck
7.01 m
20.32 m
F/V Skate CONDITION 9 "WORST OPERATING CONDITION WITH TOPSIDE ICE PORT ARRIVAL FULL LOAD 10% CONSUMABLES". At what angle of heel will the FWD air supply become immersed?
At 7.163 degrees
At 10.78 degrees
28.75 degrees
At 49.27 degrees
