Longitudinal Strength Part 1

Multiple Choice

Where is the weight concentrated if the ship is experiencing a hogging bending moment?

• Bow

• Stern

• Bow and Stern

• Center

Multiple Choice

For a sagging wave, what is happening at the deck and what is happening at the keel? Are they in tension or compression?

• Deck: Tension

  Keel: Compression

• Deck: Compression

  Keel: Tension

• Deck: Tension

  Keel: Tension

• Deck: Compression

  Keel: Compression

Multiple Choice

Where is the crest of the wave if the ship is experiencing a hogging bending moment?

• Bow

• Stern

• Bow and Stern

• Center

Multiple Choice

A ship has a moment of inertia of its cross section of 8,000,000 in^4. The ship's depth is 30 ft above the keel. If the ship is now subjected to a hogging moment of 35,000 ft*LT, what is the worst stress in lb/in^2 and is it tension or sompression?

• 23,990 psi (Tension)

• 23,990 psi (Compression)

• 18,346 psi (Tension)

• 18,346 (Compression)