Which statement is TRUE concerning insulating flanges ________.
A.They should be inspected and tested periodically to ensure that the insulation is clean and in good condition
B.Switching off a cathodic protection system may be substituted for using an insulating flange
C.The measured resistance value after installation should be less than 1,000 ohms
D.After the insulating flange is installed,hot work may be performed on deck
第1题:
Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE ________.
A.Stack weights should be less when using a solid bar lashing as compared to a wire lashing
B.Stack heights may be increased when using a solid bar lashing
C.Stack heights should be reduced when using a solid bar lashing
D.Solid bars should be used for lashing the first tier only,with wire lashings on the higher tier(s)
第2题:
Which statement is TRUE concerning the placard entitled Discharge of Oil Prohibited ________.
A.It is required on all vessels
B.It may be located in a conspicuous place in the wheelhouse
C.It may be located at the bilge and ballast pump control station
D.All of the above
第3题:
Which statement is TRUE concerning combustible gas indicators ________.
A.One sample of air is adequate to test a tank
B.They do not work properly where there is a lack of oxygen
C.They will detect a lack of oxygen
D.They are calibrated to read the percentage chance of explosion
第4题:
The cargo will spontaneously ignite if released to the atmosphere
You must operate this barge as a lead barge
The barge should be spotted as far away from the towboat as possible
The barge must be in a protected position within the tow
第5题:
A conditional or partial exemption may be granted,in exceptional circumstances,for a single voyage outside the sea area for which the vessel is equipped
Once a compulsory vessel's GMDSS station has been fitted and inspected,the station must be inspected only once every five years
All passenger vessels and all cargo vessels that are 300 Gross Tons or larger must comply
Compulsory vessels must carry at least two licensed GMDSS Radio Operators
第6题:
Each vessel should show sidelights
Each vessel should show at least one white light
The barges should be lighted as separate units
The barges should be lighted as one vessel
第7题:
The catenary in a hawser should be sufficient so that the hawser just touches the bottom
The hawser is of sufficient length for towing when taut between tug and tow
Increasing speed usually increases the catenary in the hawser
Shortening the tow hawser generally decreases the maneuverability of the tug
第8题:
The towing line between the two vessels should be clear of the water
The towing line should be taut at all times between the vessels
There should be a catenary so the line dips into the water
None of the above
第9题:
They must be released by freeing a safety shackle
They should not be released until the boat is in lowering position
They may be adjusted by a turnbuckle
They are normally used only with radial davits
第10题:
The light comes on at sunset
There is an emergency light if the main light is extinguished
The height of the light is 24 feet
The tower is painted with black and white stripes
第11题:
All engines,motors,fans,etc. should be shut down when fueling
All windows,doors,hatches,etc. should be closed
A fire extinguisher should be kept nearby
Fuel tanks should be topped off with no room for expansion
第12题:
Current can be determined by measuring the direction and distance between simultaneous EP and DR positions
The drift of the current should be averaged out on a one hour basis
After the current is determined,it should not be used for further plotting because it is an unknown variable
The distance between a simultaneous DR position and fix is equal to the drift of the current
第13题:
Which statement is correct concerning the carriage of coal in bulk ________.
A.Coal should be vented with surface ventilation only
B.Because of its inherent vice,coal should not be loaded wet
C.Dunnage should be placed against ship's sides and around stanchions
D.Through ventilation,as well as surface ventilation,should be provided whenever possible
第14题:
Which statement is TRUE concerning buoyant work vests aboard tankers ________.
A.They may be worn while working on deck but not while working over the side
B.They must be used only under supervision of a designated ship's officer
C.They will be accepted for up to 10% of the required life preservers
D.They may be worn during drills
第15题:
Which statement concerning GPS is TRUE ________.
A.It cannot be used in all parts of the world
B.There are 12 functioning GPS satellites at present
C.It may be suspended without warning
D.Two position lines are used to give a 2D fix
第16题:
You should maintain course and speed
The container vessel is the stand-on as it is the larger vessel
You are not to impede the safe passage of the container vessel in the channel
None of the above
第17题:
Sweat damage in containers is unusual due to the small enclosed volume of air
In general,containerized hygroscopic cargoes are the only ones subject to sweat damage
Containers should be ventilated,dehumidified,or the contents physically protected against sweat damage
Sweat damage is not a problem except in insulated and refrigerated containers
第18题:
It is a sailing maneuver which brings the vessel's head through the wind
It connects the boom to the mast and allows the boom to swing freely
It is a sailing condition where there is a loss of air flow over the sails
None of the above
第19题:
It is required on all vessels
It may be located in a conspicuous place in the wheelhouse
It may be located at the bilge and ballast pump control station
All of the above
第20题:
Stack weights should be less when using a solid bar lashing as compared to a wire lashing
Stack heights may be increased when using a solid bar lashing
Stack heights should be reduced when using a solid bar lashing
Solid bars should be used for lashing the first tier only,with wire lashings on the higher tier(s)
第21题:
They are heavier than air and will settle in the lowest part of the vessel
They are lighter than air and will settle in the highest part of the vessel
They should be vented into the engine to improve combustion
They should be vented into the wheelhouse
第22题:
Fresh water may be obtained from fish
Lifeboat covers or canopies should be washed with rain before drinking water is collected
Fresh water may be collected from condensation inside the liferaft
Seawater should never be consumed
第23题:
Fuel vapors gather in the lowest portions of the vessel
Fuel vapors can only be ignited by an open flame
Vent outlets should be located above the level of the carburetor air intake
None of the above