Which statement concerning locating signals in the GMDSS is

Which statement is TRUE concerning the flash point of a substance ________．

A.It is lower than the ignition temperature

B.It is the temperature at which a substance will spontaneously ignite

C.It is the temperature at which a substance，when ignited，will continue to burn

D.It is the temperature at which the released vapors will fall within the explosive range

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

According to the author, which statement concerning philosophers is most nearly accurate?

A. They are impractical.

B. They are too radical.

C. They are a thoughtful group.

D. They have contempt for humanity.

Which statement concerning reserve sources of energy for GMDSS is FALSE ________．

A.While the ship is at sea，there must be available at all times a supply of electrical energy sufficient to operate the radio installations and to charge any batteries used as part of a reserve source of energy

B.Both the VHF and MF/HF installations must be simultaneously supplied

C.A means of ensuring a continuous supply of electrical power must be provided to all GMDSS equipment that could be affected by an interruption in power

D.If a UPS or equivalent is used to supply power to the ship's GPS receiver or other source of positional information，a means must be provided to ensure the continuous supply of the information in the event of a failure to the ship's main or emergency source of power

Which statement concerning GMDSS Radio Operator requirements is FALSE ________．

A.Each compulsory vessel must carry at least two licensed GMDSS Radio Operators at all times while at sea

B.Each compulsory vessel must carry at least two licensed Radio Operators at all times while at sea and may elect to carry a GMDSS Radio Maintainer as well

C.Communications involving safety of life at sea do not have to be logged as long as the compulsory vessel was not involved in such communications

D.While at sea，adjustments to，and the maintaining of，GMDSS equipment may be performed by the GMDSS Radio operator as long as the work is supervised by an onboard licensed GMDSS Radio Maintainer

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

Which device provides the main means in the GMDSS for locating ships in distress or their survival craft ________．

A.Radio direction finder

B.Satellite EPIRBs

C.MF/HF DSC

D.VHF homing device

Which statement concerning carbon dioxide is FALSE ________．

A.It displaces the oxygen in the air

B.It cannot be seen

C.It cannot be smelled

D.It is safe to use near personnel in a confined space

Which statement concerning locating signals in the GMDSS is FALSE ________．

A.Locating signals are transmitted by survival craft VHF transceivers

B.Locating signals are transmitted by SARTs

C.Locating signals are intended to facilitate the finding of a distressed vessel or its survivors

D.Locating signals are not transmitted by autoalarm generators

Which statement concerning satellite EPIRBs is TRUE ________．

A.Once activated，these EPIRBs continuously send up a signal for use in identifying the vessel and for determining the position of the beacon

B.The coded signal identifies the nature of the distress situation

C.The coded signal only identifies the vessel's name and port of registry

D.If the GMDSS Radio Operator does not program the EPIRB，it will transmit default information such as the follow-on communications frequency and mode