The rated operating time of a se

相关试题

The rated operating time of a self-contained breathing device may be reduced in actual use because of ().
- A.pressure differences in the atmosphere
- B.the length of the hose attached to the facepiece
- C.the physical exertion of the person wearing the device
- D.spaces containing poisonous vapors
点击查看答案
The downflooding angle for a ship is the minimum angle at which ().
- A.The load line becomes submerged
- B.A non-watertight opening is at still water level
- C.Offset becomes excessive
- D.Reserve buoyancy is a maximum
点击查看答案
How can vessel personnel detect the operation of a SART in its vicinity ().
- A.A unique radar signal consisting of a blip code radiating outward from a SART's position along its line of bearing
- B.A unique two tone“warbling”signal heard on VHF-FM ch-70
- C.A unique two tone alarm signal heard upon the automatic unmuting of the 2182 kHz radiotelephone automatic watch receiver
- D.The SART signal appears as a target which comes and goes; the effect of heavy swells on the SART
点击查看答案
The terms“cant frame”and“counter”are associated with the vessel's ().
- A.Cargo hatch
- B.Forecastle
- C.Steering engine
- D.Stern
点击查看答案
Your load line certificate expires on 27 May 2006.The vessel is surveyed on that date and is found satisfactory.You are sailing foreign the same day.Which statement is TRUE ________.
- A.A new certificate must be issued before you sail
- B.The existing certificate is endorsed as valid for a five year period commencing 27 May 2006
- C.The existing certificate is extended for a period of up to 150 days
- D.The existing certificate is extended until the first foreign port of call where a new certificate will be issued by the local surveyor
点击查看答案
The Sailing Directions contain information on ______.
- A.Required navigation lights
- B.Lifesaving equipment standards
- C.Casualty reporting procedures
- D.Currents in various locations
点击查看答案
In waters where the cardinal system is used you would expect to find danger ().
- A.Lying to the south of an eastern quadrant buoy
- B.Lying to the south of a northern quadrant buoy
- C.Lying to the east of an eastern quadrant buoy
- D.Beneath or directly adjacent to the buoy
点击查看答案
A vessel that is dead in the water on an even keel with most of her superstructure forward will lay ______.
- A.With the wind abaft the beam or on the stern
- B.With the wind on the beam
- C.With the wind on the bow
- D.With the wind dead ahead
点击查看答案
Every vessel shall ()maintain a proper look-out by sight and hearing as well as by all available means appropriate in prevailing circumstances and conditions so as to make a full appraisal of the situation and of the risk of collision.
- A.in fog
- B.at night
- C.in narrow fairway
- D.at all times
点击查看答案
The radar component that produces the synchronizing signal and triggers the indicator sweep is which of the following ().
- A.Transmitter
- B.Antenna system
- C.Indicator
- D.Modulator
点击查看答案

The rated operating time of a self-contained breathing device may be reduced in actual use because of ().