SCS Objective Questions

1. You are transferring fuel from a supply vessel to your Ship. If you close off one tank in the line of tanks being filled, the flow rate to the other open tanks on the same line will _______________.
A.   increase
B.   decrease
C.   stop
D.   stabilize

2. A vessel having a concentration of weight toward the top of the vessel is said to be ____________.
A.   stiff
B.   tender
C.   buoyant
D.   neutral

3. At all angles of inclination, the true measure of a vessel's stability is the _____________.
A.   metacentric height
B.   displacement
C.   righting moment
D.   inclining moment

4. Which statement about the free surface correction is TRUE?
A.  It is added to the uncorrected GM to arrive at the corrected available GM.
B.  It is obtained by dividing the free surface moments by 12 times the volume of displacement.
C.  It is obtained by dividing the total free surface by the total vertical moments.
D.  It is subtracted from the total longitudinal moments before dividing by displacement to find LCG.

5. The wooden planking that protects the tank top from cargo loading is called__________.
A.  ceiling
B.  shores
C.  frames
D.  toms

6. Keel scantlings of any vessel are greatest amidships because __________.
A.  connections between forebody and afterbody are most crucial
B.  of maximum longitudinal bending moments
C.  of severest racking stresses
D.  resistance to grounding is at a maximum amidships

7. Position of center of buoyancy of a box shaped barge is at
A.  Half of the draught;
B.  Half of the depth of the hull
C.  All of the above
D.  None of the above

8. In ships construction, structural hull members installed athwart ship are
A.  deck beams
B.  stringers
C.  girders
D.  breasthooks

9. The structural members of the hull extending in a fore and aft direction are called
A.  frames
B.  joiners
C.  longitudinals
D.  knees

10. In a longitudinally framed ship, the longitudinal frames are held in place and supported by athwartship members called
A.  stringers
B.  web frames
C.  pillars
D.  brackets

11. The inner bottom of a ship is the
A.  plating forming the engine room tank top
B.  doubler plating installed over the flat keel plate
C.  watertight boundary formed by the skin of the ship
D.  compartment between the tank top and skin of the ship

12. In ship construction, the hull frame members extending athwartship are called
A.  deck frames
B.  stringer frames
C.  longitudinal frames
D.  transverse frames

13. The double bottom in a vessel is a space comprised of
A.  plating forming the engine room tank top
B.  doubler plating installed over the flat keel plate
C.  a watertight boundary formed by the inner bottom
D.  compartments between the inner and outer bottoms

14. Vertical support members used to strengthen bulkheads are called
A. stiffeners
B. panels
C. stanchions
D. brackets                  

15.  When the propeller blades are integral with the hub, the propeller is called a
A.  built up propeller
B.  solid propeller
C.  controllable pitch propeller
D.  suction back propeller

16. The garboard strake is located
A.  at the very bottom center
B.  just under the sheer line
C.  at each side of the keel
D.  at the turn of the bilge

17. Which of the devices listed prevents water from entering the ship's hull via the propulsion shaft?
A.  stern tube packing or mechanical shaft seal
B.  deflector ring and drain
C.  spring bearings
D.  oiler rings

18. Compared to internal structural plating, the exterior hull plating on a ship is usually
A.  stronger
B.  thinner
C.  more corrosion resistant
D.  a lower grade steel

19.Bulkheads forming part of the tanks on a ship are stiffened to withstand
A.  deck loads from above
B.  dynamic forces while afloat
C.  hydrostatic pressure
D.  over pressurization

20. A continuous watertight bulkhead on a ship may also be a/an
A.  structural bulkhead
B.  exterior bulkhead
C.  centerline bulkhead
D. joiner bulkhead

21. A bronzed sleeve is secured to the propeller tailshaft by
A.  keying
B.  shrinking
C.  threading
D.  pressing

22. The tailshaft is usually supported by the
A.  spring bearings
B.  tail bearings
C.  astern tube bearings
D.  propeller bearings

23. Structural bulkheads on a ship are usually
A.  continuous
B.  watertight
C.  transverse
D. non watertight

24. The inclining experiment conducted on a merchant ship is the method for determining the exact location of the 
A. ship's displacement in seawater
B. position of the ship's center of gravity
C. position of the ship's center of buoyancy
D. position of the ship's metacenter 

25.The potential weakest part of the anchor chain would be the
A.  stud link
B.  solid link
C.  fluke link
D.  detachable link

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