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Flashcards in Final Deck (36):
1

The slightly upward convexity in the main deck

Camber

2

The vertical distance from the projected line of top of deck to waterline

Freeboard

3

The outward curve perpendicular to the vessel

Flare

4

The vertical distance from the keel to the waterline

Draft/draught

5

The vertical distance from the keel to the line of top deck

Depth

6

Draft+freeboard =

Depth

7

The extreme width of a ship

Beam

8

The inclination inward from the waterline; the difference between beam at waterline and beam at main deck

Tumble home

9

The height to which a vessel’s frame rises from the horizontal

Dead rise

10

A vertical line usually at the after end of the rudder post, if no rudder post the center of the rudder stock

After perpendicular

11

The curved section between the bottom in the side of the ship to which all water drains

Bilge

12

The longitudinal vertical plane of a vessel

Centerline

13

The total weight of cargo fuel water stores passengers and crew that a ship can carry

Deadweight

14

The height of the ship at the midship section from the baseline to the molded line of the deck at the side

Depth

15

The total weight of a ship when a float including everything on board

Displacement

16

Compartments at the bottom of the ship between the inner and outer bottoms used for ballast tanks water fuel oil etc.

Double bottom

17

Vertical line through the intersection of the stem with the load water line

Forward perpendicular

18

Inside of a hull, cargo space

Hold

19

The plating the forms the upper surface of the double bottom a.k.a. tank top

Inner bottom

20

A Mark on a ship that indicates maximum allowable draft

Plimsoll mark

21

Vertical structural supports

Stanchions

22

The vertical deflection of a ships hull where the hull is bent upwards of midships

Hogging

23

Vertical deflection of a ships hull where the hull is bent downward amidships

Sagging

24

Hogging and sagging are caused by

Cargo distribution and or the way the ship is supported by a wave

25

What causes stress on a ships structure?

Weight vs Buoyancy

26

Name the three types of stress

Compression tension and Shear

27

Dimensions of structural members are

Scantlings

28

What motions in a seaway are rotational

Roll
Pitch
Yaw

29

What motions in a seaway are linear?

Heave
Surge
Sway
Pound

30

What motions in the seaway are on the longitudinal axis

Roll and surge

31

What motions in the seaway are on the transverse axis

Pitch and sway

32

What motions in the seaway are on the vertical axis

Pound heave and yaw

33

A continual worsening of list or trim indicates

Progressive flooding

34

What is the main purpose of closing appliances

To ensure water tight integrity

35

What are three ways to control progressive flooding?

Maintain water type boundaries, pump out flooded compartments, and repair hull damage above the waterline

36

The watertight bulkhead near the bow of the ship a.k.a. for peak bulkhead

Collision bulkhead