U.S.C.G. Merchant Marine Exam Towing Vessels – …...Q424 Deck Safety U.S.C.G. Merchant Marine...

National Maritime Center Serving Our Nation’s Mariners

U.S.C.G. Merchant Marine Exam

Towing Vessels – Western Rivers

Q424 Deck Safety

(Sample Examination)

of 15 Q424 Deck Safety

9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3

Choose the best answer to the following Multiple Choice questions.

1. If an engine shuts down due to high jacket water temperature, what action should be taken?

• (A) Allow engine to cool gradually o (B) Open crankcase explosion covers o (C) Back flush the cooling water system o (D) Slowly add cool water to the expansion tank

If choice A is selected set score to 1.

2. Which visual distress signal is acceptable for daylight use only?

o (A) Hand-held red flare • (B) Hand-held orange smoke distress flare o (C) Self-contained rocket-propelled parachute red flare o (D) Red aerial pyrotechnic flare

If choice B is selected set score to 1.

3. If you see an individual fall overboard, which action(s) should you take?

o (A) Pass the word to the bridge o (B) Throw him/her a life buoy o (C) Hail "man overboard" • (D) All of the above

If choice D is selected set score to 1.

4. What is LEAST likely to cause ignition of fuel vapors?

• (A) Explosion proof lights o (B) Static electricity o (C) Loose wiring o (D) An open running electric motor


5. Which is included in the term "Western Rivers," when it refers to regulations requiring towing vessels to carry navigational-safety equipment, charts or maps, and publications?

o (A) Red River and the Old River o (B) Port Allen - Morgan City Alternate Route o (C) Mississippi River and its tributaries • (D) All of the above



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 6. Which is the primary element to successfully rescuing a man overboard?

o (A) Good communication o (B) A dedicated crew • (C) Well-conducted drills o (D) Good equipment

If choice C is selected set score to 1.

7. You are reading the draft marks as shown in illustration D032DG. The water level forward is at the top of the 8, and the water level aft is at the top of the 8. What is the mean draft?

• (A) 8'06" o (B) 8'03" o (C) 8'00" o (D) 7'06"


8. Which of the following in the illustration is the head of boat deck on a towboat? Illustration WR002DG

o (A) B o (B) C o (C) H • (D) S


9. Which of the following in the illustration is the headlog? Illustration WR003DG

o (A) A o (B) C o (C) G • (D) I


10. A fire starts on your towboat while refueling. Which action should you take FIRST?

• (A) Sound the general alarm o (B) Attempt to extinguish the fire o (C) Stop the ventilation o (D) Determine the source of the fire



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 11. Which time frame must you ensure that the new crew members that have never participated in the

required drills on your towboat receive their safety orientation?

• (A) Within 24 hours of reporting for duty o (B) Prior to reporting aboard the towboat o (C) Within the first week of reporting aboard o (D) Within the first month of reporting aboard


12. What does a slow and easy motion of a vessel in a waterway indicate?

o (A) A stiff vessel o (B) A low center of gravity • (C) A small GM o (D) A large GZ


13. Which is TRUE concerning the stowage of life jackets?

o (A) They are always locked watertight containers o (B) They are required to be stowed in messrooms o (C) They are required to be stowed in on central location • (D) They must be stowed in readily accessible locations


14. Which is TRUE concerning the required drills and instruction onboard your towboat?

o (A) Donning of protective clothing for instructional purposes is not required o (B) Participation of at least 50% of the crew is required at each drill o (C) The required drills need only be held on a quarterly basis • (D) The crew must be instructed on the operation of the fuel shut-off for the engine room


15. Which of the following in the illustration is the rake compartment of a hopper barge? Illustration WR003DG

o (A) A o (B) E • (C) H o (D) I



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 16. Which is a requirement of the fire main system on a towboat?

o (A) Portable fire pumps with its hoses and nozzles must be readily accessible and stowed inside the machinery space

o (B) Nozzles fitted to the hoses shall be corrosion-resistant material and only provide a solid stream

o (C) Fixed fire pumps shall be located outside of the machinery spaces • (D) A single length of hose must be capable of reaching any part of the machinery space


17. A towing vessel is required to be fitted with radar if which of the following is TRUE?

• (A) The towboat is 200 gross tons and used exclusively on the Western Rivers o (B) A fleeting towboat pushing a barge ahead to make up a tow o (C) The towboat is less than 12 meters (39.4 feet) in length o (D) The towboat is used solely for assistance towing


18. Which installed equipment on a towing vessel must be tested and logged when a new Master assumes command?

o (A) Internal communications, including sound-powered telephones o (B) Navigational lights and search lights o (C) Vessel control alarms • (D) All of the above must be tested


19. When should the lubricating oil be changed on a heavy duty diesel engine?

• (A) When it has been in use for a specified interval o (B) Only when a sample rubbed between fingers feels thin o (C) When it no longer supports combustion o (D) When it gets dark in color


20. Which navigational equipment is required to be tested and logged before a towing vessel embarks on a voyage of more than 24 hours?

o (A) Radar(s) and VHF radio(s) o (B) GPS receiver(s) o (C) Compass and/or swing meter • (D) All required navigational equipment, without exception



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 21. Your towboat is pushing a loaded tank barge and has been involved in a collision with another

vessel. Which is an indicator that the barge is damaged and sinking?

• (A) The barge takes on a list to starboard o (B) The barge appears to be riding higher out of the water o (C) Your boat's speed increases by 0.2 mph o (D) The face and jockey wires are a little slack


22. The owner or Master of a towing vessel shall ensure that all tests and inspections of gear take place. When are these actions required to be logged?

o (A) Daily, at 0800 local zone time o (B) Immediately after assuming the watch o (C) Weekly, before 2400 Saturday • (D) When a new Master assumes command


23. If you are unable to stop a diesel engine by any other means, which action can you take?

• (A) Discharge a CO2 extinguisher in the air inlet o (B) Pull off the distributor cap o (C) Secure the starting air supply valve o (D) Secure the jacket water


24. What is used as an indicator of initial stability?

o (A) GZ o (B) KG • (C) GM o (D) KM


25. The owner or Master of a towing vessel that is operating within a Vessel Traffic Service (VTS) area must report specific information to the service. Which of the following choices is NOT required to be reported?

• (A) The type of credential he/she holds and its serial number o (B) Any characteristics of the vessel that affect its maneuverability o (C) Any malfunction of propulsion machinery, steering gear, radar, gyrocompass or depth-

sounder, if installed o (D) A shortage of personnel, lack of charts, maps or other required publications



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 26. You are reading the draft marks as shown in illustration D032DG. The water level is about 4 inches

below the bottom of the number 11. What is the draft?

• (A) 10'-08" o (B) 10'-10" o (C) 11'-04" o (D) 11'-08"


27. Which term defines the upward pressure of displaced water of a vessel?

o (A) Freeboard o (B) Deadweight • (C) Buoyancy o (D) Draft


28. After extinguishing a paint locker fire using the fixed CO2 system, which is the next action that should be taken to the space?

o (A) Check the oxygen content of the space • (B) Keep the space closed with vents off until all boundaries are cool o (C) Douse the space with water to prevent reflash o (D) Open the space and all burned material removed


29. What does a pyrometer measure on a diesel engine?

o (A) Water pressure • (B) Exhaust temperature o (C) Air box pressure o (D) Water temperature


30. Which of the following in the illustration is the bilge knuckle of a barge? Illustration WR003DG

o (A) C o (B) D o (C) K • (D) L



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 31. When the forward drafts and the after drafts are averaged, which of the following describes the

result?

o (A) Mean of the calculated drafts o (B) True mean draft o (C) Draft at the center of flotation • (D) Mean draft


32. By regulation, who is responsible to ensure that procedures are established to address fall overboard prevention and recovery of persons in the water?

o (A) The operator on watch o (B) The Master of the towboat • (C) The owner or managing operator of the towing vessel o (D) The United States Coast Guard


33. Which statement is TRUE concerning life jackets which are severely damaged?

• (A) They must be replaced. o (B) They must be tested for buoyancy before being continued in use. o (C) They can be used for children. o (D) They can be repaired by a reliable seamstress.


34. Which statement is TRUE concerning the fire pump on your towing vessel?

o (A) The pump shall be capable of delivering water simultaneously from two hydrants on the main deck at 50 psi and a flow rate of 70 gpm

o (B) Hoses for the stations must have a minimum diameter of 2 inches and 75 feet in length to reach any part of the machinery space

o (C) Remote operation of all valves necessary for the operation of the pump is not required if the remote start switch for the pump is outside of the machinery space

• (D) A fix fire pump must be capable of being energized remotely from outside of the engine room and also locally at the pump



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 35. Which of the following in the illustration is the wing tank of hopper barge? Illustration WR003DG

o (A) A o (B) H • (C) K o (D) L


36. On which route is a towing vessel over 39.4 feet in length NOT required to carry an echo-sounding device?

o (A) Coastwise Routes o (B) Great Lakes o (C) Inland Waters, other than the Western Rivers • (D) Western Rivers


37. How would the exhaust of a properly operating diesel engine appear?

o (A) Light gray haze o (B) Light brown haze o (C) Light blue haze • (D) Perfectly clear


38. Which defines the function of a spark arrestor?

o (A) Grounds static electricity reducing chance of explosion o (B) It keeps sparks from falling into an open tank o (C) Utilized to secure covers on ullage openings • (D) Prevents sparks from getting out of an engine's exhaust system


39. An important step in fighting any electrical fire is to take which action?

o (A) Stop the vessel • (B) De-energize the circuit o (C) Stop ventilation o (D) Apply water to extinguish the fire



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 40. By regulation, who is responsible to ensure that fall overboard prevention and recovery of persons in

the water procedures are complied with on your towboat?

o (A) The managing operator of the towboat o (B) The Master o (C) The owner of the towboat • (D) All of the above


41. Where a propeller shaft passes through the hull, which device prevents water from entering the hull?

o (A) propeller boss o (B) sea cock o (C) stop-water • (D) stuffing box


42. You are reading the draft marks as shown in illustration D032DG. The water level forward is 4 inches below the 11, and the water level aft is 2 inches below the top of the 11. What is the mean draft?

o (A) 11'-08" o (B) 11'-04" • (C) 11'-00" o (D) 11'-06"


43. Fires which occur in energized electrical equipment, such as switchboard insulation, are which classification?

o (A) A o (B) B • (C) C o (D) D


44. If you must jump overboard from a vessel into the water, what does the correct posture include?

o (A) Knees bent and held close to the body with both arms around legs o (B) Body straight and arms held tightly at the sides for feet first entry into the water o (C) Both hands holding the life preserver below the chin with knees bent and legs crossed • (D) Holding down the life preserver against the chest with one arm crossing the other, covering

the mouth and nose with a hand, and feet together



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3 45. Your towboat has just been involved in a collision. Which is the FIRST action you should take?

• (A) Sound the general alarm o (B) Turn on the Not Under Command Lights o (C) Start the fire pump o (D) Contact the Company Office


46. Which extinguishing agent is/are suitable to combat a class B fire in an engine compartment?

o (A) Carbon dioxide o (B) Dry chemical o (C) Foam • (D) All of the above


47. Which term describes the section of each end of a barge which is heavily reinforced to take the pressure of pushing?

• (A) Headlog o (B) Towhead o (C) Collision bulkhead o (D) Bullnose


48. If you must enter water on which there is an oil fire, which is the best action to take?

o (A) Wear very light clothing o (B) Protect your life preserver by holding it above your head o (C) Keep both hands in front of your face to break the water surface when diving head first • (D) Enter the water on the windward side of the vessel


49. You are in a channel in U.S. waters near an industrial plant with a load/discharge facility for barges. You hear a siren being sounded at the facility. What does this indicate?

o (A) A barge at the facility has commenced loading or discharging operations. o (B) The facility is warning a barge to shut down transfer operations due to weather conditions

(electrical storms, tornado, etc.). • (C) There is danger at the facility due to a fire or cargo release. o (D) A towboat with a hazardous cargo barge is being moved to or from the facility.



9/10/2019

Q424 Deck Safety U.S.C.G. Merchant Marine Exam Towing Vessels-Western Rivers Illustrations: 3

50. It is necessary to secure the forced ventilation to a compartment where there is a fire to__________.

o (A) extinguish the fire by carbon monoxide smotheringo (B) allow the exhaust fans to remove smokeo (C) protect fire fighting personnel from smoke• (D) prevent additional oxygen from reaching the fire



9/10/2019

National Maritime Center

Serving Our Nation's Mariners

12/22/2017

WR002DG

Adapted for testing purposes only from The Deckhand’s Manual

Copyright © 1961 by Kenneth Finefield

Further reproduction prohibited without permission of 15

Q424 Deck Safety



12/22/2017

WR003DG

Adapted for testing purposes only from The Deckhand’s Manual

Copyright © 1961 by Kenneth Finefield

Further reproduction prohibited without permission of 15

Q424 Deck Safety



8/16/2018

D032DG

Adapted for testing purposes only

Further reproduction prohibited without permission of 15 Q424 Deck Safety

U.S.C.G. Merchant Marine Exam Towing Vessels – …...Q424 Deck Safety U.S.C.G. Merchant Marine...

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