更多"[单选题]__what altitude are we flying?"的相关试题:
[判断题]“标高”、“高度”和“高”分别用英文elevation, altitude, height表示。
A.正确
B.错误
[单选题]Although we are of the same age, we _( )_ in height and weight (体重).
A. vary
B. various
C. different
D. very
[单选题] We often __( )_ the happy time we spent at your home last summer.
A. recall
B. remind
C. present
D. provide
[单选题]what is job?
A.dba
B.pm
C.ceo
[单选题] What does OBO mean?
A. Oil Bulk Oil
B. Ore Bulk Oil
C. Only Bulk Ore
D. Only Basic Oil
[单选题] What is OPA 90?
A. Oil Production Act of 1990
B. ore Pollution Act of 1990
C. Oil Pollution Act of 1990
D. Ore Production Act of 1990
[单选题] What does ECDIS stand for?
A.Electrical Chart Display and Indication System
B.Electronic Chart Display and Information System
C.Electric Chart Display and Informing System
D.Electronic Chart Display and Indicating System
[单选题] What is the tidal height?
A.Twice the tide amplitude
B.The range of the tide
C.The water above the Lowest Astronomical Tide
D.The height above or under the mean level
[单选题] What is a coded racon?
A. A racon which automatically activate itself
B. A racon only work at night
C. A racon which display a morse code on the radar screen
D. A future racon expected to be operational after Y2000
[单选题] What is the best instrument for establishing a safe working area before welding in a confined space ________．
A.An oxygen indicator
B.A combustible gas indicator
C.A combination combustible gas and oxygen indicator
D.A flame safety lamp
[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] What does a Racon help with?
A.Measuring the distance
B.Measuring the relative speed
C.Identifing a vessel
D.Identifing a seamark
[单选题] What is important to check when transferring a position from GPS to a chart?
A. Reading the position correctly
B. Plotting the position correctly
C. Make sure that the chart and the GPS use same datum
D. Make sure the map is updated
[单选题] What are the vessel equipment and personnel requirements for GMDSS ________．
A.Two licensed GMDSS radio operators
B.Equipment carriage requirements
C.Distress alerting and response
D.All of the above
[单选题] What is the required minimum ship reporting capacity for AIS according to IMO performance standards?
A. 1000
B. 2000
C. 4000
D. 4500
[单选题] What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism ________．
A.Quadrantal spheres
B.Heeling magnets
C.Athwartships magnets
D.Fore-and-aft magnets
[单选题] What is the meaning of UEL?
A. Upper exposure level
B. Upper explosion level
C. Upper explosive level
D. Upper evaporation level
[单选题] What is the maximum oxygen percentage allowed in a tank?
A. 12%
B. 6%
C. 8%
D. 10%
[单选题] What is required by regulations concerning the stowage of lifeboats on cargo vessels ________．
A.Each lifeboat must have a launching appliance
B.Launching appliances must be of the gravity type
C.There may not be more than two launching appliances on the same deck
D.All of the above
