U.S.C.G. Merchant Marine Exam Towing Vessels-Western ... · Towing Vessels-Western Rivers...

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U.S.C.G. Merchant Marine Exam

Towing Vessels-Western Rivers

Q423-Deck General

(Sample Examination)

of 14 Q423-Deck General

8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3

Choose the best answer to the following multiple choice questions.

1. Topside icing decreases vessel stability because it increases __________.

• (A) KG o (B) draft o (C) displacement o (D) free surface

If choice A is selected set score to 1.

2. A mariner whose credential has been revoked shall not be issued another credential without which of the following?

o (A) taking a new examination o (B) approval of the Officer-in-Charge, Marine Inspection o (C) approval of an administrative law judge • (D) approval of the Commandant

If choice D is selected set score to 1.

3. While towing in shallow water which action(s) should be taken?

o (A) Use a floating hawser o (B) Consider the catenary and the effect it may have on the tow o (C) Use a short towing hawser • (D) All of the above


4. In what direction should you coil a right hand laid rope?

o (A) Either a clockwise or counter-clockwise direction o (B) Alternating clockwise and counter-clockwise directions o (C) A counter-clockwise direction • (D) A clockwise direction


5. Who is responsible for any wake damage caused by a passing vessel?

• (A) The person is charge of the passing vessel o (B) No one is responsible for wake damage o (C) The person deemed competent to steer the vessel o (D) The owner of the damaged vessel



8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 6. Regardless of local requirements, when in a U.S. port, all oil spills must be reported to which of the

following agencies?

o (A) Minerals Management Service • (B) National Response Center (USCG) o (C) Environmental Protection Agency o (D) All of the Above

If choice B is selected set score to 1.

7. A block and tackle is "rove to advantage". What does this mean?

o (A) The hauling parts of two tackles are attached o (B) The blocks have been overhauled o (C) The hauling part leads through the standing block • (D) The hauling part leads through the movable block


8. Your tow includes a barge carrying chlorine. Which special requirements must be observed?

o (A) The wing voids shall not be opened when underway. • (B) A cargo information card for chlorine must be in the pilothouse. o (C) You must post a deckhand to keep a special watch on this barge. o (D) All of the above


9. What is the purpose of wire G? Illustration D024DG

• (A) Prevents the boat from sliding when rudder is put hard-over o (B) Hold the boat securely to the tow enabling it to steer the tow o (C) Required on large boats, to aid when backing down o (D) As a safety backing line


10. A nylon line is rated at 15,000 lbs. breaking strain. Using a safety factor of 5, what is the safe working load (SWL)?

• (A) 3,000 lbs. o (B) 5,000 lbs. o (C) 15,000 lbs. o (D) 65,000 lbs.



8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3

11. Which of the following is issued a Towing Safety Management System (TSMS) Certificate?

o (A) TSMS Certificates are not issued o (B) The Master of the vessel o (C) TSMS are issued to the vessel • (D) The owner or managing operator


12. Two vessels are abreast of each other and passing port to port in a confined waterway. What should you expect as your head of your tow approaches the screws of the other vessel?

o (A) Your draft will significantly decrease. o (B) Your bow will sheer away from the other vessel. o (C) Your speed will significantly increase. • (D) Your bow will sheer towards the other vessel.


13. You attach a line to a barge lying off your starboard beam in order to maneuver it into position to make up tow. Which line is used to accomplish this maneuver?

o (A) A jockey line o (B) The fore and aft line o (C) A check line • (D) A swing line


14. How many portable fire extinguishers are required in the machinery space of a 260 GT towing vessel with 2400 B.H.P.?

o (A) Six B-II (Post 2016 Regulation equivalent is Six 40-B:C) o (B) Five B-II (Post 2016 Regulation equivalent is Five 40-B:C) • (C) Three B-II (Post 2016 Regulation equivalent is Three 40-B:C) o (D) Two B-II (Post 2016 Regulation equivalent is Two 40-B:C)

If choice C is selected set score to 1.

15. The owner or Master of a vessel 39.4 feet in length or more pushing ahead or towing alongside in the navigable waters of the United States must ensure that each of the following is appropriate for the vessel's horsepower and tow arrangement EXCEPT which item?

• (A) Hydraulic couplings o (B) Spring lines o (C) Face wires o (D) Push gear



8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 16. When backing down with sternway, where will the pivot point of a vessel be located?

• (A) The pivot point will be about one-quarter of the combined length of the vessel and the tow from the stern

o (B) The pivot point will shift to the head of the tow o (C) The pivot point will be aft of the propellers o (D) The pivot point will be about one-third of the length from the head tow


17. In relation to the turning circle of a vessel, which defines the term "transfer"?

o (A) The distance gained in the direction of the original course • (B) The distance gained at right angles to the original course o (C) The distance around the circumference of the turning circle o (D) The distance the ship moves sidewise from the original course away from the direction of the

turn after the rudder is first put over


18. A marine chemist issues gas free certificates and is certified by which organization?

o (A) Mine Safety Appliance Association • (B) National Fire Protection Association o (C) American Chemical Society o (D) Marine Chemists Association


19. When piloting a vessel, how are visual references used to establish a constant rate of turn?

o (A) Keep the fixed object's relative bearing opening, for a constant rate of turn. o (B) Begin the turn when the fixed object is on the beam. • (C) Fixed objects that stay on the same relative bearing when the boat is turning indicate a

constant rate of turn. o (D) Visual references cannot be used to maintain a constant rate of turn.


20. Fire protection regulations for towing vessels require that drills be conducted on board the vessel as if there were an actual emergency. Drills include all of the following, EXCEPT which item?

o (A) One person putting on protective clothing, if the vessel is so equipped o (B) Breaking out and using the vessel's emergency equipment • (C) Participation by selected crew members o (D) Testing all alarm and detection systems



8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 21. Which of the following must be included in the "oil transfer procedures" required by U.S Pollution

Prevention Regulations?

o (A) The location, size, and barrel capacity of each tank that is capable of carrying oil • (B) Any special procedures inherent to that particular vessel for topping off tanks o (C) The emergency cleanup and containment procedures to be followed in the event of an oil spill o (D) All of the above


22. What type of knot in illustration D030DG below is indicated by the Letter "G"?

• (A) Fisherman's bend o (B) Round turn and two half hitches o (C) Timber hitch o (D) Barrel hitch


23. Which statement is TRUE about nylon line?

• (A) Nylon stoppers should be used with nylon line. o (B) Manila line will usually last longer than nylon line. o (C) A normal safe working load will stretch nylon line 50%. o (D) Nylon line is excellent for use in alongside towing.


24. Which is the term given to a rope made of a combination of wire and fiber, known for its flexibility and elasticity?

o (A) Preformed o (B) Independent • (C) Spring lay o (D) Lang lay


25. What is the goal of a Safety Management System?

• (A) To implement the responsible person's safety and environmental protection policies o (B) To direct the navigation of a vessel on the Western Rivers by utilizing specific check points o (C) To designate the Master of the towboat as the sole responsible person for all safety related

incidents o (D) To oversee the safe transportation of petroleum barges in specific areas



8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 26. 33 CFR 156 deals with matters concerning which of the following topics?

o (A) Vessel construction and design o (B) Lifesaving and firefighting equipment • (C) Oil and hazardous material transfer operations o (D) Operation of nautical school ships


27. You are berthed at a cargo facility where you have just completed discharging a dangerous cargo. You must complete topside repairs involving hot-work before sailing. Which of the following statements is TRUE?

o (A) You can make repairs with permission of the facility owner since you are empty and the cargo is on the facility.

• (B) The Captain of the Port may give specific approval to make hot-work repairs. o (C) The repair area must be inspected by a marine surveyor to ensure that it can be done safely. o (D) Hot-work repairs at such a facility are prohibited.


28. Which agency must approve the Safety equipment on board inspected vessels?

o (A) The National Safety Council • (B) The U.S. Coast Guard o (C) The Safety Standards Bureau o (D) The Occupational Safety and Health Administration (OSHA)


29. In the illustration, what is the purpose of item "G"? Illustration D024DG

• (A) To prevent the towboat from shifting when the rudder is put hard over o (B) To distribute the vessel's thrust over a wider area o (C) To keep the barges from shifting fore and aft o (D) To prevent the towboat from capsizing if item I should part


30. Which describes how flanking rudders effect a vessel's heading when going astern?

o (A) The discharge current being channeled to impinge on the vessel's deadwood o (B) The water flow due to the vessel's movement through the water o (C) The tunnel effect of the water flow past opposing rudders • (D) The effect of the propeller flow on the rudders



8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 31. A ballasted vessel sinks enroute to a dry dock. Under these circumstances, the vessel's owner can

claim which loss?

o (A) Particular average o (B) Constructive total loss • (C) Actual total loss o (D) General average


32. Which of the following in the illustration is a face wire? Illustration D024DG

o (A) A o (B) G o (C) H • (D) I


33. What is the minimum number of portable fire extinguishers required on board a 45-foot towing vessel that has a fixed fire system in the machinery space?

o (A) One B-I (Post 2016 Regulations equivalent is One 10-B:C) • (B) Two B-I (Post 2016 Regulations equivalent is Two 10-B:C) o (C) Three B-I (Post 2016 Regulations equivalent is Three 10-B:C) o (D) Four B-I (Post 2016 Regulations equivalent is Four 10-B:C)


34. Which is/are the consequences when your tug reduces speed to shorten tow?

o (A) The towing hawser may drag the bottom and put the tug in irons o (B) The tow may continue its momentum and overtake the tug o (C) The length of the tow gets shorter as the strain is reduced • (D) All of the above


35. What effect does bank suction have upon the hull of a vessel in shallow water?

o (A) The hull has a greater pressure on land side of the stern o (B) The hull has a lesser pressure on the land side of the bow o (C) The hull has a greater pressure on the land side of the bow • (D) The hull has a lesser pressure on the land side of the stern



8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 36. In reference to the maneuvering of a vessel, which is TRUE regarding advance?

• (A) The advance will be maximum when the vessel has turned through 90 degrees from the base course

o (B) Advance is the measurement of the shifting of the pivoting point of the vessel o (C) The vessel's advance is the distance gained at right angles to the base course o (D) The advance will be maximum when the vessel has turned through 180 degrees from the

base course


37. What are the venting requirements for a barge with a cargo of adiponitrile?

o (A) Gooseneck vents fitted with flame screens o (B) Closed venting with a vapor recovery system o (C) Open venting • (D) Pressure-vacuum relief valves


38. Which fitting is a timberhead? Illustration WR001DG

• (A) A o (B) B o (C) C o (D) D


39. Which is a button fitting that is found mostly on lock walls? Illustration WR001DG

o (A) A o (B) B o (C) C • (D) D


40. What is the name of a long pole with a hook at one end, used to reach for lines?

• (A) Pike pole o (B) Hooker o (C) Jack staff o (D) Line rod



8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 41. According to U.S. regulations, what vessels are required to have the "Discharge of Oil Prohibited"

placard?

o (A) Foreign vessels when engaged in noncommercial service o (B) U.S. vessels less than 26 feet in length o (C) Foreign vessels not in U.S. navigable waters • (D) U.S. Vessels 26 feet or more in length


42. You are towing astern in open shallow water. What action should you take if your tow sinks?

o (A) Attempt to beach it before it goes under • (B) Pay out cable until it's on the bottom and place a buoy on the upper end o (C) Shorten cable to keep it off the bottom o (D) Release it immediately


43. Regulations for Subchapter D cargoes require that venting for cargo tanks in which only grades D or E liquids are to be transported shall, as a MINIMUM, be of which type? (tank barge constructed on or after July 1, 1951)

o (A) Straight vents open to atmosphere • (B) Gooseneck vents and flame screens o (C) Branch vent lines connected to a vent header system o (D) Individual pressure vacuum relief valves


44. The owners of the River Duchess agree to a charter with the Down River Towing Company. The owners stipulate in the charter party that they must approve the Master of the vessel for the entire life of the contract. The Charterer becomes the "owner for a time" under this type of contract. What is the name of this charter party?

o (A) Time • (B) Bareboat o (C) Voyage o (D) Lease


45. Which knot in illustration D030DG below represents a single becket bend?

o (A) E o (B) F o (C) G • (D) H



8/18/2020

Q423-Deck General U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 46. Failure to notify the Coast Guard of an oil spill can carry a prison sentence of what duration?

o (A) Not more than 1 year o (B) Not more than 2 years o (C) Not more than 3 years • (D) Not more than 5 years


47. What is the main reason to lubricate a wire rope?

o (A) Prevent rotting o (B) Prevent kinking • (C) Lubricate the inner wires and prevent wear o (D) Keep the wire soft and manageable


48. Which is TRUE concerning the requirements of marking the name and hailing port of a documented vessel?

o (A) A document towboat operating on the Western Rivers is only required to have the name of the vessel marked on the pilot house

• (B) On square bow vessels the name shall be clearly marked on the exterior of the part of the bow

o (C) Vessels with square bows are required to have the vessel name and hailing port marked each side of the bow area

o (D) A document towboat is required to have the vessel's name and official number marked on the stern of the vessel


49. You have a tow of chemical barges. The mate reports an ammonia smell around the head of the tow. You would suspect a leak in the barge carrying which substance?

o (A) Methyl chloride • (B) Morpholine o (C) Propanolamine o (D) Heptane


50. Which is the root cause of wake damage to a vessel or structure in a narrow channel?

o (A) Improper steering of the vessel o (B) Slack mooring lines o (C) Trim of the vessel • (D) Excessive speed



8/18/2020

National Maritime Center Serving Our Nation’s Mariners

5/2/2018

D024DG

Adapted for testing purposes only from The Deckhand’s Manual

Copyright © 1961 by Kenneth Finefield Further reproduction prohibited without permission


National Maritime Center

Serving Our Nation’s Mariners

11/27/2018

Adapted for testing purposes only from NOEL, Knight’s Modern Seamanship, 17th edition

Copyright © 1984 by Van Nostrand Reinhold Company Inc.

Further reproduction prohibited without permission

D030DG


National Maritime Center

Serving Our Nation’s Mariners

1/9/2020

WR001DG

Adapted for testing purposes only from The Deckhand’s Manual

Copyright © 1961 by Kenneth Finefield

Further reproduction prohibited without permission of 14 Q423-Deck General

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