On an OSV，when may a work vest be substituted for a required life jacket?A.To replace a damaged life jacketB.For use during fire drillsC.For use during boat drillsD.At no time
On an OSV，when may a work vest be substituted for a required life jacket?
A.To replace a damaged life jacket
B.For use during fire drills
C.For use during boat drills
D.At no time
相关考题：
A life preserver or buoyant work vest is required to be worn on a ship when a person is ______.A.working on the rig floorB.working over waterC.working on the pipe racksD.operating line throwing equipment
The rescue boat on an OSV is not required to carry a ______.A.fishing kitB.searchlightC.sea anchorD.radar reflector
To determine the number of portable fire extinguishers required on an inspected vessel，you should check the ______.A.hot work permitB.Certificate of InspectionC.Safety of Life at Sea CertificateD.station bill
A vessel is underway with a work stage rigged over the side. A seaman may work on the stage，but only when ______.A.wearing a life jacketB.wearing a safety harness secured to the stageC.wearing both a life jacket and a safety harness secured to the stageD.the vessel is not making way
How many adult life jackets are required on board a ship ________．A.Enough for 100 percent of the persons allowed on boardB.One for each work station and industrial work siteC.Enough for 150 percent of the persons allowed on boardD.Both A & B above
Coast Guard approved buoyant work vests ______．A.may be substituted for 10 percent of the required life preserversB.should be stowed adjacent to lifeboats and emergency stationsC.may be used by boat crews and line handlers during lifeboat drillsD.should be used when carrying out duties near a weather deck's edge
Shipping society approved buoyant work vests are considered to be items of safety equipment and may be worn by members of the crew ______．A.in lieu of life preservers during fire drillsB.in lieu of life preservers during boat drillsC.in lieu of life preservers during an actual emergencyD.when carrying out duties near a weather deck's edge
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 sideB.They must be used only under supervision of a designated ship's officerC.They will be accepted for up to 10% of the required life preserversD.They may be worn during drills
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 conditionB.Switching off a cathodic protection system may be substituted for using an insulating flangeC.The measured resistance value after installation should be less than 1，000 ohmsD.After the insulating flange is installed，hot work may be performed on deck
For GMDSS，when may a compulsory vessel not be allowed to leave port ________．A.When the vessel is in an overloaded conditionB.When the vessel has arranged for both duplication of equipment AND shore-based maintenanceC.When the vessel has replaced a required piece of GMDSS-related equipment but its performance has not been verified or loggedD.When the vessel is carrying only two licensed GMDSS Radio Operators and is capable of performing all required functions
The minimum amount of lifesaving equipment required aboard an 85-foot uninspected towing vessel consists of ______．A.One approved flotation cushion for each person on boardB.One approved life preserver for each person on board and one life ringC.One approved inflatable vest for each person on boardD.Lifeboat capacity equal to 1 1/2 times the number of persons on board
单选题Each EPIRB required on an OSV shall be tested using the integrated test circuit and output indicator every（）.AweekBtwo weeksCmonthDtwo months
单选题On an OSV，when may a work vest be substituted for a required life jacket?（）ATo replace a damaged life jacketBFor use during fire drillsCFor use during boat drillsDAt no time
单选题The prohibition against displaying lights which may be confused with required navigation lights applies（）.Afrom sunset to sunrise and during restricted visibilityBonly when other vessels are in the areaConly when operating in a traffic separation schemeDonly when under tow
单选题When required to work where there may be explosive gases, you should use tools which are （）Aapproved by the Coast GuardBhigh carbon steelCfixed with a ferrous coverDnonsparking
单选题A vessel is underway with a work stage rigged over the side. A seaman may work on the stage，but only when（）.Awearing a life jacketBwearing a safety harness secured to the stageCwearing both a life jacket and a safety harness secured to the stageDthe vessel is not making way
单选题How many adult life jackets are required on board a ship?（）AEnough for 100 percent of the persons allowed on boardBOne for each work station and industrial work siteCEnough for 150 percent of the persons allowed on boardDBoth A and B above
单选题气胀式救生衣（）Ainflatable life-jacketBinflatable life-raftCflammable life-jacketDinflammable life-jacket
单选题What material may be substituted for zinc when making a poured metal socket ending to a wire rope（）.ALeadBBabbittCSolderDNothing
单选题On a ship，when may a work vest be substituted for a required life preserver?（）ATo replace a damaged life preserverBFor use during fire drillsCFor use during boat drillsDAt no time
单选题A life preserver or buoyant work vest is required to be worn on a ship when a person is （）.Aworking on the rig floorBworking over waterCworking on the pipe racksDoperating line throwing equipment
单选题The minimum amount of lifesaving equipment required aboard an 85-foot uninspected towing vessel consists of（）.Aone approved flotation cushion for each person on boardBone approved life preserver for each person on board and one life ringCone approved inflatable vest for each person on boardDlifeboat capacity equal to 1 1/2 times the number of persons on board
单选题Coast Guard approved buoyant work vests（）.Amay be substituted for 10 percent of the required life preserversBshould be stowed adjacent to lifeboats and emergency stationsCmay be used by boat crews and line handlers during lifeboat drillsDshould be used when carrying out duties near a weather deck's edge
单选题To determine the number of portable fire extinguishers required on an inspected vessel，you should check the（）.Ahot work permitBCertificate of InspectionCSafety of Life at Sea CertificateDMuster List