更多"[单选题] A position that is obtained "的相关试题:
[单选题] A position obtained by applying only your vessel's course and speed to a known position is a ______．
A.Dead-reckoning position
B.Fix
C.Probable position
D.Running fix
[单选题] My position has been obtained by ______.
A. Astronomical observation
B. Hydrographic survey
C. Weather prediction
D. Current sailing
[单选题] The most effective way of applying carbon dioxide from a portable extinguisher to a fire is by ______．
A.Forming a cloud cover over the flames
B.Directing the gas at the base of the flames in a slow sweeping motion
C.Discharging the carbon dioxide into the heart of the flames
D.Bouncing the discharge off an adjacent bulkhead just above the burning surface
[单选题]EST报中不包含（ ）
A.航空器识别标志
B.起飞机场
C.飞行规则及种类
D.预计飞越边界数据
[单选题] Access to a hold can be obtained through______________.
A. forecastle
B. tweendeck
C. hatches
D. peak tanks
[单选题] What describes an accurate position that is NOT based on any prior position ________．
A.Dead-reckoning position
B.Estimated position
C.Fix
D.Running fix
[单选题] You should plot your dead reckoning position ____
A. form every fix or running fix
B. from every estimated position
C. every three minutes in pilotage waters
D. only in pilotage waters
[单选题] Which position includes the effects of wind and current ________．
A.Dead reckoning position
B.Leeway position
C.Estimated position
D.Set position
[单选题] When should the emergency position-indicating radio beacon be activated after abandoning an OSV ________．
A.Immediately
B.After one hour
C.Only when another vessel is in sight
D.Only after sunset
[单选题] The number and position of hydrants arranged on board shall be such that _______，one of which shall be from a single length of hose，may reach any part of the ship normally accessible to the passengers or crew while the ship is being navigated．
A.at least two jets of water which shall be from the same length of hose
B.at least two jets of water emanating from the same hydrant
C.at least two jets of water not emanating from the same hydrant
D.at least two jets of water not emanating from the same hydrant，one of which shall be from a single length of hose
[单选题]A high oil density will position the cylindrical interfaceto the bowl periphery than a low density of the oil.
A.far
B.far away
C.closer
D.nearer
[单选题] A line of position from a celestial observation is a segment of a ______.
A. circle of equal altitude
B. parallel of declination
C. parallel of altitude
D. vertical circle
[单选题] You have anchored in the wrong position obstructing other traffic. You must __________.
A. pick up your anchor
B. heave up your anchor
C. drop your anchor
D. drag your anchor
[判断题]龜 PAXs with open position when providing services.
A.正确
B.错误
[单选题] Owing to old data of the survey the positions and number of the beacons shown on this chart are not to be ______.
A. considered
B. insured
C. relied upon
D. suspected
[单选题] A line of position derived by radar range from an identified point on a coast will be a（n）______．
A.Straight line
B.Arc
C.Parabola
D.Line parallel to the coast
[单选题] How can you estimate the position of a tropical storm's center ________.
A. With a radio weather bulletin or weather fax
B. Using shipboard radar
C. Observe the wind direction and apply Buys Ballot's law
D. All of the above
[单选题] When a buoy is in position only during a certain period of the year，where may the dates when the buoy is in position be found?
A. Light List
B. Notice to Mariners
C. On the chart
D. Coast Pilot
[判断题]The position of the air-bridge should be checked for safety.
A.正确
B.错误
