Page 137 - NAVAL SCIENCE 3 TEXTBOOK

142 NAVAl. SKII.I.S

3. \·Vhat nauticaln<1mes are given to these parts of a ship? 18. \-Vhat are the purposes of the sh,lkedowil and underway
training cruise?
A. Front part
19. A. \Vhat is a ship's designation composed of?
B. Back part
B. \-Vhat are the first-letter designators of major naval vessels?
C. Middle of ship, lengthwise
20. A. \·Vhat determines a class of ships?
D. Lengthwise direction
B. \Vhat do the letters G and N indicate in a ship's designator?
E. Crosswise direction
C. \Vhat does a T before a ship's designator mean?
E lvlidpoint iuea
G. Widest part of ship
CRIT ICAL THINK ING
H . . Main deck, forward
I. Main deck, aft 1. How does the construction of a naval warship differ from a
J. Main deck and above typic<ll dry cargo nlerchant ship? \·Vhy the differences?
K. Below the Illain deck 2. Research some of the features that have been incorporated in
new naval warships built during the 1990s and beyond that
L. Right of centerline
make themlllore resistant to damage than ships built earlier.
1vl. Left of centerline \Vhat provided the impetus for these changes?
N. In the rigging 3. Briefly describe the different types of propulsion systems
4. A. \Vhat name is given to the girders attached to the keel that found on present -day naval warships.
support the watertight skin of the ship? 4. J\·lake a table listing common features of a building sllch as
ll. What is the watertight skin called? foundations, walls, doors, as so on, then list in the table the
corresponding Ilautical features in a boat or ship.
C. \·Vhat additional strengthening beams run fore and aft?
5. \-Vhat is another name for the deck edge where the main deck
meets with the shell or side plating? VOCABULARY
6. How are all compartments in a ship identified? propulsion plant weather deck
7. A. How are decks numbered below the main deck? armament scuppers
sea\\'orthiness list, trim
B. Above the main deck?
endurance collision bulkhead
8. A. \-Vhat llame is given to all structures above the main deck?
habitability superstructure
B. \,Vhat is the highest structure above the main deck?
landlubber mainmast
C. \-Vhat equipment is installed on this structure? bulkhead foremast
9. A. \'Vhat main components does a steam propulsion plant overhead pigstick
have? quarterdeck jackstaft·
B. \Vhat is the biggest difference between a steam and nuclear- fore. <lft stack
athwartships reduction gear
powered vessel?
bow, stern rpm
10. Briefly describe how a gas turbine engine works.
forecastle propeller shaft
11. \·Vhat part of the propulsion system actually drives the ship
"\11 tail nuclear reactor
through the water?
watertight integrity variable-pitch propeller
12. \'Vhy is there heavy shielding around the reactor compartment amidships subassembl)'
of a nuclear propulsion plant? port, starboard christening
13. \'Vhere are ships built? beam commission pennant
14. \-Vhat are the basic steps in building a ship? quarter shakedown cruise
keel hull number
15. In what three ways can a ship be launched?
gunwale ship designator
16, \Vho chooses the Ilame of a new ship?
roll, pitch, yaw compartment
17. A. \-Vho places a naval ship in commission? draft wardroom
13. \-Vhat is the first order of the new cOlllmanding officer after freeboard head (ship compartment)
he or she reads the orders? stateroom