更多"Lines drawn through points on the e"的相关试题:
[单项选择]Lines drawn through points on the Earth having the same atmospheric pressure are known as （）.
A. Isothermal
B. Millibars
C. Isobars
D. Seismics
[单项选择]The loran lines drawn on navigation charts represent（）.
A. Ground waves
B. Skywaves
C. Either ground waves or skywaves interchangeably
D. An average between ground wave and skywave positions
[单项选择]As observed from the Earth，the angle between lines from the Earth to the Sun and the Earth to an inferior planet is known as（）.
A. elongation
B. conjunction
C. opposition
D. quadrature
[单项选择]Isogonic lines are lines on a chart indicating （）.
A. points of equal variation
B. points of zero variation
C. the magnetic latitude
D. magnetic dip
[单项选择]Frapping lines（）.
A. secure the lifeboat in the davits when in the stowed position
B. bring the lifeboat close alongside the rail in the embarkation position
C. give the occupants a safety line when the boat is being lowered from the embarkation level
D. reduce the swinging of the lifeboat at the embarkation level
[单项选择]What term indicates the line drawn at the top of the flat plate keel（）.
A. Base line
B. Molded line
C. Designer's waterline
D. Keel line
[单项选择]A charge of fresh air is drawn into the engine cylinder and then （） by the moving piston（） very high pressure.
A. pressed；to
B. pressurized；with
C. pushed；in
D. compressed；to
[单项选择]When the tail-shaft is drawn from a vessel in dry-dock, which of the following inspections is required to be carried out?（）
A. The propeller hub taper and shaft keyway should be inspected for cracks or corrosion
B. The stern bearing alignment with the stern frame should be checked
C. The interior of the stern tube should be inspected for leaks
D. The shaft liner should be removed and inspected
[单项选择]The oil is drawn from a drain tank through （）, one of a pair of pumps, into one of fine filters.
A. a strain tank
B. a head tank
C. a service tank
D. a strainer
[单项选择]The lube oil in the bearings is drawn from a （）, usually located in the bedplate.
A. tank
B. sump
C. vessel
D. bottle
[单项选择]A position obtained by crossing lines of position taken at different times and advanced to a common time is a(n)（）.
A. running fix
B. dead-reckoning position
C. fix
D. estimated position
[单项选择]During repair,lubrication lines and orifices must be （）.
A. taken away
B. engaged
C. connected
D. sealed off
[单项选择]All straight lines represent great circle tracks on a chart based on a(n) （）.
A. Mercator projection
B. polyconic projection
C. orthographic projection
D. gnomonic projection
[单项选择]A radio link between a transmitting earth station and a receiving earth station through one satellite is named a（）.
A. Radio link
B. Space segment
C. Satellite link
D. upper link
[单项选择]Mooring lines both（）were let go.
A. for and aft
B. from and aft
C. fore and aft
D. all and aft
[单项选择]What is TRUE concerning frapping lines?（）
A. They are used to steady a lifeboat when lowered
B. They are normally attached to the davit span
C. They are needed only on radial davits
D. They are used to clear the puddings
[单项选择]Which method of adjusting mooring lines is MOST useful for leaving a boat free to rise and fall with the tide?（）
A. Crossing the spring lines
B. Slacking all forward running lines while keeping all after running lines taut
C. Doubling up on spring or breast lines
D. Slacking bow and stern lines
