National Maritime Center

Transcription

1 National Maritime Center Providing Credentials to Mariners Master TV to Master Less than 500 Gross Registered Tons Oceans or Near Coastal (Sample Examination) Page 1 of 6

2 Master TV to Master Less than 500 Gross Registered Tons Oceans or Near Coastal Illustrations: 1 Choose the best answer to the following Multiple Choice Questions. 1. The SS AMERICAN MARINER is ready to bunker with drafts of FWD 14'-06", AFT 17'-00". After all bunkers are on board, soundings indicate the tonnages shown in table ST-0085 below. Use the white pages of The Stability Data Reference Book to determine the free surface correction. o (A) 0.52 foot o (B) 0.70 foot (C) 0.84 foot o (D) 1.10 feet If choice C is selected set score to You have 12 containers of rig supplies each measuring 10'L by 4'B by 5'H and weighing 2.0 tons each. Each container is stowed on deck. What is the maximum VCG permitted of the remaining cargo if you are carrying rig water and load to maximum capacity? See illustration D037DG below. o (A) 0.5 foot (B) 0.9 foot o (C) 1.1 feet o (D) 1.6 feet 3. Using the information in Section 1, the blue pages, of the Stability Data Reference Book, determine the danger angle for permanent list if the KG is 22.2 feet and the drafts are: FWD 23'-06", AFT 24'- 03". (A) 26 o (B) 30 o (C) 34 o (D) 53 If choice A is selected set score to 1. Page 2 of 6

3 Master TV to Master Less than 500 Gross Registered Tons Oceans or Near Coastal Illustrations: 1 4. Your vessel measures 126 feet (38.41 meters) long by 21 feet (6.4 meters) in beam. If the natural rolling period at a draft of 8 feet (2.44 meters) is 6 seconds, what is the GM? (A) 2.4 feet (0.70 meters) o (B) 3.2 feet (0.98 meters) o (C) 3.0 feet (0.90 meters) o (D) 2.8 feet (0.85 meters) If choice A is selected set score to Your vessel's drafts are: FWD 22'-03", AFT 22'-09"; and the KG is 24.4 feet. What is the righting moment when the vessel is inclined to 15? (Use the reference material in Section 1, the blue pages, of the Stability Data Reference Book) o (A) 4,176 foot-tons (B) 5,916 foot-tons o (C) 7,076 foot-tons o (D) 9,003 foot-tons 6. The SS AMERICAN MARINER is loaded with the cargo shown in table ST-0070 below. Use the white pages of The Stability Data Reference Book to determine the amount of liquid loading required in the double bottom tanks to meet a one compartment standard. o (A) tons o (B) tons (C) tons o (D) tons If choice C is selected set score to Your sailing drafts are: FWD 22'-04", AFT 23'-06" and the GM is 3.2 feet. What will be the angle of list if #3 starboard double bottom (capacity 97 tons, VCG 2.5 feet and 23 feet off the centerline) is filled with saltwater? (Use the data in Section 1, the blue pages, of the Stability Data Reference Book) o (A) Less than 1 (B) 3 o (C) 7 o (D) 11 Page 3 of 6

4 Master TV to Master Less than 500 Gross Registered Tons Oceans or Near Coastal Illustrations: 1 8. Weight concentration in which area will cause a vessel's bottom to be subjected to tension stresses? o (A) At both ends o (B) Aft o (C) Forward (D) Amidships If choice D is selected set score to You are loading in a port subject to the tropical load line mark and bound for a port subject to the summer load line mark. You will enter the summer zone after steaming two days. You will consume 28 tons of fuel, water, and stores per day. The hydrometer reading at the loading pier is 1.020, and the average TPI is 55. What is the minimum freeboard required at the start of the voyage? Reference Table BL-0021 below. o (A) 66 inches (B) 74 inches o (C) 70 inches o (D) 62 inches 10. Your drafts are: FWD 24'-09", AFT 27'-02". Use the blue pages of the Stability Data Reference Book to determine the vessels displacement if you are in salt water. o (A) 13,175 tons o (B) 13,350 tons o (C) 13,490 tons (D) 13,620 tons If choice D is selected set score to 1. Page 4 of 6

5 National Maritime Center Providing Credentials to Mariners D037DG 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 5 of 6

6 National Maritime Center Providing Credentials to Mariners D037DG 5/23/2016 Adapted for testing purposes only Further reproduction prohibited without permission Page 6 of 6