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Domestic Vessels: Subchapter T > Study Questions > Flashcards

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1
Q

What is a T boat?

A

(46 CFR 175.110(a)) A vessel of less than 100 gross tons that carries 150 or less passengers, or has overnight accomodations for 49 or less passengers, and that:
- Carries more than six passengers, including at least one for hire.
- Is a submersible vessel and carrying at least one passenger for hire.
- Is a ferry carrying more than six passengers.

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2
Q

What gives us our authority to conduct T boat inspections?

A

46 USC 3301 (vessels subject to inspection), 14 USC 102 (Coast Guard authority to promulgate and enforce regulation for safety of life and property on high seas).

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3
Q

When did the modern subchapter T come into effect?

A

March 11, 1996.

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4
Q

When must a T boat also comply with SOLAS requirements?

A

(46 CFR 175.120) When carrying more than 12 passengers on an international voyage.

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5
Q

When does a T boat need a Load Line?

A

(46 CFR 175.122) When over 24 meters/79 feet on an international voyage and required by subchapter E.

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6
Q

For how long is a COI valid?

A

(46 CFR 176.107) For 1 year for SOLAS vessels, otherwise 5 years.

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7
Q

What is the order of severity for routes?

A

(46 CFR 176.110(b)) Oceans, coastwise, limited coastwise, Great Lakes, lakes/bays/sounds, rivers.

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8
Q

What passenger count criterion cannot be combined with any other criterion?

A

(46 CFR 176.113(c)) Deck rail length. Fixed seating and deck area may be combined.

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9
Q

What must be conspicuously placed in a position where it can be seen by passengers?

A

(46 CFR 176.302/306/310) The COI, stability letter, and COI expiration sticker.

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10
Q

When can the annual inspection take place, and what is its scope?

A

(46 CFR 176.500(b)) Within 3 months before or after each anniversary date, and the same scope but in less detail

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11
Q

When does a vessel need a hull exam or internal structural exam?

A

(46 CFR 176.600(c)) If it operates in salt water for more than 3 months in any 12 month period, every 2 years; otherwise, every 5 years.

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12
Q

What is the boundary line between salt and fresh water on the Columbia River?

A

(CID Policy 01-18) A line drawn from Point Ellice, WA to the NW corner of Astoria, OR.

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13
Q

What should be done with PFDs found to be defective and incapable of repair?

A

(46 CFR 176.808(d)) The owner or operator shall destroy it in the presence of the MI.

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14
Q

How many child-sized PFDs are required?

A

46 CFR 176.808(e)) 10% of the total number of people allowed on board, or one for each child if greater (school field trip etc.)

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15
Q

What reference is used to govern inspection and servicing of portable fire extinguishers?

A

(46 CFR 176.810(b)(1)) NFPA 10.

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16
Q

Does the person inspecting/servicing portable extinguishers need to hold any special certification?

A

(46 CFR 176.810(b)) Monthly inspection can be done without any special certification by owner/operator/designated crewmember. Non-rechargeable or –refillable extinguishers can be annually inspected by owner/operator/designated crewmember. All other extinguishers must be annually serviced by licensed individual or facility.

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17
Q

How often should a pressure vessel be examined or tested?

A

(46 CFR 61.10-5(a)) At least every 5 years.

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18
Q

What pressure vessels are not required to be inspected?

A

Those less than 5 cubic feet.

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19
Q

To what pressure should a pressure vessel be hydrostatically tested to?

A

(46 CFR 61.10-5(b,d)) If a defect is found, then 1.5x MAWP. Otherwise, to 1.25x MAWP, unless internal examination is possible in which case it need not be hydrostatically tested at all.

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20
Q

To what pressure should a pressure-relieving device on a pressure vessel be set to?

A

(46 CFR 54.15-5(c)) To 1.1x MAWP.

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21
Q

What should the range of a pressure sensing gauge on a pressure vessel be set to?

A

(46 CFR 54.15-5(f)) Not less than 1.2x nor more than 2x the pressure at which the pressure relieving device is set to function (1.1x MAWP).

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22
Q

What is the “5 year rule”?

A

(46 CFR 177.310) If a vessel’s particulars differs from the scantlings required by the applicable standard, but the owner can show the vessel has performed satisfactorily on the route and service requested for at least 5 years, the vessel’s scantlings may be accepted as adequate.

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23
Q

When can an FRP vessel not be made of NPFC MIL-R-21607E(SH) fire-retardant resin?

A

(46 CFR 177.410(b,c)) When the resin instead meets an ASTM E-84 flame spread rating of not more than 100 when in laminate form, or if:
- The galley (area containing heating elements exceeding 250 F) is surrounded by a B-15 boundary. Open flame heating systems are not allowed.
- Electrical equipment/switch boards must be protected from fuel or water sources. Sources of ignition must be isolated from combustible matter.
- Smoke detectors must be installed in accommodation spaces, service spaces, and isolated spaces containing and ignition source.
- Machinery spaces must be lined with noncombustible panels or insulation.
- Furnishings must comply with subchapter K regulations.
- Must not have overnight accommodations for more than 12 passengers.
- Must not be gasoline powered.

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24
Q

How many means of escape are required, and where should they be located?

A

46 CFR 177.500(a,b)) At least two, and they should be widely separated and (if possible) egress into different spaces such that a fire in one space does not impair both means of escape (see interim rule).

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25
What is the minimum width of a door or passageway used as a means of escape?
(46 CFR 177.500(e,f)) Wide enough to allow easy movement of people wearing PFDs, and no less than 32 inches (28 inches if used solely by crewmembers).
26
How much force should deck rails be able to withstand?
(46 CFR 177.900(b)) A point load of 200 lbs at any point in any direction, and a uniform load of 50 lbs/foot applied to the top rail in any direction.
27
What is the required height of a deck rail?
(46 CFR 177.900(d)) For excursion vessels, 39.5” with courses at least every 4”. For other vessels, at least 36” with courses at least every 12”.
28
At what temperature does hot piping need to be insulated?
(46 CFR 177.970) 150 F.
29
When does a vessel need a stability booklet rather than a stability letter?
(46 CFR 178.220) When the CO, MSC determines it needs one.
30
When can a vessel get a Simplified Stability Test rather than a full stability test?
(46 CFR 178.310) When it: - Is 65’ or less, - Does not carry more than 12 passengers on an international voyage, - Does not have more than one deck above the bulkhead deck, - is not in question by the cognizant OCMI.
31
What is the assumed average weight per person for a SST?
(46 CFR 170.090) 185 lbs.
32
What is the minimum assumed weight for dive gear?
(46 CFR 178.330(4)(v)) 80 lbs.
33
What vessels need collision bulkheads?
(46 CFR 179.210) A vessel of more than 65’ in length, and vessels under 65’ if they carry more than 49 passengers, operate on exposed waters, are at least 40’ and operate on partially protected waters, or is constructed of wood and operates in cold water.
34
Can there be penetrations in watertight bulkheads?
(46 CFR 179.320(c)) Yes, but they must be minimized, as high and as far inboard as possible, and made watertight.
35
When are opening portlights allowed below the weather deck on vessels on exposed or partially protected routes?
(46 CFR 179.350(a)) When the lower sill of the portlight is at least 30” above the deepest load waterline.
36
When must through-hull openings have a positive action valve as near to the hull as possible?
(46 CFR 179.350(c)) When they are within 6” of the deepest load waterline.
37
What is the required height of the coaming on a weathertight door?
(46 CFR 179.360(d)) On exposed or partially protected routes, 6”. On protected routes, 3”.
38
When is a T-boat required to carry an EPIRB?
(46 CFR 180.64) When it operates on the high seas (i.e. exposed route).
39
When is a T-boat allowed to not carry distress signals?
(46 CFR 180.68(d)) When it operates on short runs limited to approximately ~30 minutes from the dock.
40
When is a T-boat allowed to not carry a floating waterlight?
(46 CFR 180.70(d)) When it is limited to daytime operations only.
41
How many child lifejackets are required to be kept on board?
(46 CFR 180.71(b)) A number equal to at least 10% of the total number of persons permitted on board, or at least one for each child if greater.
42
When are lights required on lifejackets?
(46 CFR 180.75) On vessels with oceans, coastwise, or Great Lakes routes, but NOT on ferries or vessels with limited coastwise routes.
43
When does a survival craft not require a float-free link in its painter line?
(46 CFR 180.130(a)(1)) When the vessel operates only in waters that are not as deep as the length of the painter.
44
How quickly must a crew be able to prepare and launch the survival craft?
(46 CFR 180.130(a)(5)) In less than 5 minutes.
45
What T-boats do not require a fixed fire extinguishing system protecting their engine room?
(46 CFR 181.115(b)) Existing vessels built of aluminum or steel.
46
What T-boats are required to have a fire pump on board?
(46 CFR 181.300) All vessels over 65 feet, all vessels carrying over 49 passengers, and all ferries.
47
How many hydrants are required on board vessels equipped with a fire pump?
(46 CFR 181.310(a)) A sufficient number to reach any part of the vessel with a single length of hose.
48
When can a fire hose not be connected to a hydrant?
(46 CFR 181.320(a)) When the hydrant is on an open or cargo deck without protection, and even then only during heavy weather or cargo handling operations.
49
What are the required dimensions for the fire hose(s)?
(46 CFR 181.320(b,c)) For vessels over 65’ or carrying over 49 passengers, 1.5” diameter and 50’ long. For other vessels, at least a good quality garden-type hose of between 25’-50’.
50
What spaces are required to be protected by a fixed firefighting system?
(46 CFR 181.400(a)) A space containing propulsion machinery, an IC engine of more than 50 hp, an oil fired boiler, a gasoline tank or equipment that runs off gasoline, a space containing combustible cargo, a pain locker, or a storeroom containing flammable liquids.
51
When can a HAD be installed?
(46 CFR 181.400(b)(1)) When it protects a normally unoccupied space of less than 6,000 cubic feet.
52
When can a pre-engineered fixed firefighting system be installed?
(46 CFR 181.400(b)(2)) When it protects a normally unoccupied machinery space, paint locker, or flammable liquid storeroom of less than 2,000 cubic feet.
53
What T-boats are required to have a fire axe?
(46 CFR 181.600) Vessels of 65’ or greater.
54
A vessel not required to have a fire pump must have what instead?
(46 CFR 181.610) At least three fire buckets.
55
What systems are vital systems?
(46 CFR 182.710(A)) Fuel, fire main, fixed firefighting systems, bilge, steering, propulsion, generator.
56
What height and diameter should the standpipe used for a fuel tank hydrostatic test be?
(46 CFR 182.435(c)) 11.5’ high, diameter doesn’t matter.
57
How many complete air changes should take place in an engine room powered by gasoline prior to starting the engines?
(46 CFR 182.460(e)) At least one.
58
When can electric submersible bilge pumps replace an installed bilge system?
(46 CFR 182.520(e)) On non-ferry vessels of not more than 65’, carrying not more than 49 passengers, provided the pump is permanently installed, only dewaters one compartment, and has a valve at the through-hull penetration.
59
What spaces require bilge high water alarms?
(46 CFR 182.530) On vessels of at least 26’, any space containing a through-hull fitting or a space with a non-watertight closure.
60
To what standard should flexible nonmetallic hose used for vital systems be constructed?
(46 CFR 182.720(e)) SAE J-1942. For lengths less than 30 inches, USCG Type A1, A2, B1, or B2 may also be accepted.
61
What systems require two independent sources of power?
(46 CFR 183.310(a)(1)) Vital systems, interior lighting, communications systems, navigation equipment.
62
What are the requirements a battery must meet to be considered an independent source of power?
(46 CFR 183.310(a)(2)) Must be capable of powering all the above systems for a minimum of three hours, and must be supplemented by a generator or engine-driven alternator.
63
What T-boats are required to have a radar installed?
(46 CFR 184.404(a)) If it operates on an exposed route or carries more than 49 passengers.
64
What T-boats are required to carry a GPS receiver?
(46 CFR 184.410) Those on an oceans route.
65
What NVIC should be referenced for steel repairs?
NVIC 07-68.
66
What NVIC should be referenced for aluminum repairs?
NVIC 11-80.
67
What NVIC should be referenced for FRP repairs?
NVIC 8-87.
68
What NVIC should be referenced for wood hull inspection and repair?
NVIC 07-95.
69
What is required of a diesel fuel tank?
Diesel tanks should never be galvanized on the inside because the zinc coating is incompatible with the sulfur found in some diesel fuels. Diesel tanks may be made integral to the hull in accordance with 46 CFR 182.435 The fuel pickup or supply fitting, while not required on diesel tanks it is a good practice to extend the fill pipe to the bottom of the tank. A shut off valve must be fitted on all fuel supply lines immediately adjacent to the tank
70
What do you look for on inspection of fuel tanks?
A good reasonable impression of the overall condition of a tank can be obtained by carefully inspecting all visible areas. 46 CFR 182.440(c) Requires new fuel tanks or fuel tanks which have been repaired or modified, to be hydro tested to 5 psi.
71
What are the parts of a steering gear?
There are two primary types of steering gear on small vessels, hydraulic and mechanical. A balanced rudder has some area ahead of the rudder stock which helps to turn the rudder.An unbalanced rudder has all its area behind the rudderstock. Tiller arm connects to the Clevis which is secured by a shoulder bolt. When the vessel is hauled out for a dry dock inspection, check the rudder for excessive side to side movement. When the vessel is underway there is a large excessive side to side movement
72
What do you inspect on propeller shafts?
The packing gland, sometimes called the stuffing box, makes a watertight seal where the rotating shaft penetrates the hull. The packing gland is attached to the shaft tube, a pipe that penetrates the hull, with a short section of hose. The packing gland compressing the packing against the shaft making a watertight seal: 1-2 drops of water a minute Not to be confused with a packing gland the mechanical shaft seal provides for a truly watertight penetration for the shaft through the hull. The shaft seal uses a rotating mechanical seal instead of packing. A properly installed and adjusted shaft seal will not leak. The shaft strut supports the shaft at the propeller end and must be strong enough to prevent the shaft from flexing and withstanding groundings or collisions, the strut has a water lubricated bearing which needs to be replaced if worn 1/2 way down
73
When are general alarms required?
Vessels with overnight accomodations
74
What is the form for an application for inspection
CG3652
75
What standard must a galley hood meet?
UL710 NFPA17 or 17a
76
When are keel cooler shutoff valves required?
Non-Integral keel coolers require valve where piping penetrates hull (schedule 80)
77
Requirements for per-engineered fixed gas
COMDNT approved Manual Pull and automatic heat detector Shutdown ventilation and all engines that draw in take outside of space Reset/override light indicator for override Audible Alarm 1 per space allowed Space is <2000 ft^3
78
What allows for non boat wire in T boats?
310-13 NFPA 70 UL Boater marine Cable or Meet 111.60-1 in J -> IEEE 1580 -> NEC *Braided Copper wire of an approved type*
79
What publications are required on a vessel?
Charts US Coast Pilot Light List Tide table Current tables
80
What is required on a UL approved Gas engine?
Carburetor Alternator Starter
81
6-Pack operator license
OUPV-6PAC License (Not required to be a masters license if for inspected vessels) *only for vessels <100gt
82
Minimum Life Saving arrangement table
46 CFR 180.200c
83
Engine Control Systems duplicate means of what?
2 independent means of - engine speed - direction of shaft - engine shutdown 2 engine boats exempt
84
What are the flare requirements onboard vessels?
Oceans: 6 hand / 6 smoke LBS: 3 Hand / 3 Smoke Substitutions -Rocket = Hand flare or smoke Smoke -> Hand flare Smoke -> Float Smoke *Short runs of 30 min or less are exempt * Idaho Jetboats are exempt for fire
85
Hose type requirements
Under 30" -CG A1, A2, B1, B2 (SAEJ1527) Over 30" SAEJ1942 with SAEJ1475 fittings
86
Bilge Pipe Size
<65 ft = 1" >65 ft = 1.5" Suction must have strainer head not less than 3 time pipe diameter
87
What is a coastwise route?
Not more than 20 NM offshore Any Ocean, Gulf of Mexico, Caribbean sea, bearing sea, Gulf of Alaska
88
What is a limited coastwise route?
Not more than 20 NM from harbor of safe refuge
89
What material can you make shafts from?
304 & 316 Stainless Steel Aqullay Aquenet
90
When is a station bill required?
>65ft 4+ crewmembers including master
91
What is the minimum wire size for power and lights, control indicator and types approved?
Power and Light: 14 AWG Control Indicators: 22 AWG Braided Copper UL Boat or Marine Cable
92
Battery Sizes
Large > 2 KW Small < 2 KW
93
What standard are exterior light fixtures?
UL1104
94
What size of fuel tanks require MSC approval?
Greater than 400 gallons
95
What is a Lakes, Bays, and Sounds route?
A lake other than Great Lakes A bay or sound or similar
96
What is an Oceans Route?
Greater than 20 NM offshore
97
What is the ISE interval on aluminum T boats?
Annual (MSM Vol II B4-12)
98
Drydock / ISE Intervals
International - Annual Saltwater for more than 3 months - 2 years Saltwater for less than 3 months - 5 years
99
Ballast Rules
Stowed to prevent shifting OCMI satisfaction Not located forward of the collision bulkhead unless instillation and arrangement minimizes risk of ballast damaging collision bulkhead Not removed or relocated without OCMI approval Water as ballast to MSC
100
6 Pack vs 12 Pack
12 Pack > 100 GT
101
Permit to proceed
CG948
102
Permit to carry excursion party
CG-949
103
Water Heater Requirements
Not more than 100 psig 120 Gallons or less Pressure and Temp relief Installed and secured
104
What are the different COD Endorsements?
Coastwise - domestic trade Fisheries - engages in fisheries trade Recreation Registry - International
105
Ventilation sizes for diesel spaces
> 500 ft^3 = not less than 2.5" < 500 ft^3 = not less than 1.5"
106
When are non return devices required for freeing ports and scuppers?
When deck of cockpit vessel is less than 10ft above deepest load waterline
107
Drainage of Well deck vessels
weather deck watertight Exposed/ Partially Protected: Deck 10" above load waterline unless meets S Type II subdivision Damage stability
108
Drainage of Cockpit Vessels
May be watertight -doors on companionways may be weathertight -cockpit may have vent openings along the periphery if only on protected route Exposed / Partially Protected - Deck 10" above deepest load waterline unless meets Subchapter S All other routes - deck as high as possible
109
When is a fire pump required?
<65ft ferry = 10 gal/min 25ft stream <65ft w/ more than 49 passengers = 50 gal/min 60 psig w/ gauge at pump outlet >65ft = 50 gal/min 60 psig w/ gauge at pump outlet
110
Number of Bilge Pumps
>65ft = 2 fixed 50 gal/min <65ft >49 Pax or Ferry = 1 fixed (25gpm) 1 portable (10gpm) 26-65ft <49 Pax = 1 fixed power and 1 portable hand @ 10gpm or 1 fixed hand (10gpm) and 1 portable hand (5gpm) <26ft = 1 portable hand @ 5 gpm
111
Deck area criteria
1 Passenger for 10sqft of deck area Exclude: seats, obstructions, toilets, below deck not normally occupied Passageways: 34" wide inside / 28" wide open deck
112
Length of Rail criteria
1 Passenger for every 30 in of rail space Exclude: unsafe/congested areas, stairwells, and areas that block vision of operator
113
Number / Type of Ring bouys
<26ft = 1 x 20" 26-56 ft = 1 x 24" >65 ft = 3 x 24" 60 ft lifeline 1 floating light if night ops *Oceans/ Coastwise must be orange
114
Fixed Seat criteria
1 passenger for each 18" of fixed seating each sleeping bed counts as one seat
115
When is a fire axe required?
vessels greater than 65 ft
116
What are partially protected waters?
- Not more than 20 NM from nearest harbor of safe refuge - Portions of Rivers bays lakes as OCMI deems - Great Lakes 15 APR - 30 SEP
117
What are the vital systems?
1) Fuel 2) Fire Main 3) CO2 4) Bilge 5) Steering 6) Propulsion systems 7) Service and Emergency Generators 8) Any system determined by OCMI
118
Where is fire detection required?
Spaces with... propulsion Machinery 50hp Engine Oil fired boiler gas machinery fuel tank space griddles broilers and fryers overnight accommodation spaces w/ independent battery enclosed vehicle spaces partially enclosed vehicle spaces
119
What information is on a COD?
Name / ON / IMO# / YR Built / Hailing Port / Hull Material / Mechanical Propulsion / GT / NT / Length / Breadth / Depth / Place Built / OP endorsement / Other Restrictions
120
Collision Bulkhead Properties
Must extend to weatherdeck or one deck above bulkhead deck - Oceans and Exposed Routes Must not be fitted with any penetrations unless as high and inboard as possible and watertight At least 5% but not more than 15% - LBP Single Plane no recess or step

Domestic Vessels: Subchapter T (1 decks)

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