更多"As observed from the Earth，the angl"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]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]A plane that cuts the Earth’s surface at any angle and passes through the center will always form（）.
A. the equator
B. a great circle
C. a small circle
D. a meridian
[单项选择]（）conveys a signal of desired rudder angle from the bridge and activates the power unit and transmission system unit the desired angle is reached.
A. The control equipment
B. The power unit
C. The transmission system
D. The follow-up mechanism
[单项选择]The lines led forward from the bow and aft from the stern when a vessel is moored to the dock are（）.
A. bow and stern lines
B. breast lines
C. halyards
D. warps
[单项选择]The angle measured at the observer’s meridian from the elevated pole，clockwise or counterclockwise up to 180°，to the vertical circle of the body is the（）.
A. local hour angle
B. azimuth angle
C. meridian angle
D. longitude
[单项选择]An azimuth angle for a body is measured from the（）.
A. observer's meridian
B. Greenwich meridian
C. body's meridian
D. zenith distance
[单项选择]The angle at the pole measured through 180°from the prime meridian to the meridian of a point is known as（）.
A. the departure
B. the polar arc
C. longitude
D. Greenwich hour angle
[单项选择]The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
A. pressure gradient
B. Coriolis effect
C. aurora borealis
D. ballistic deflection
[单项选择]The fluke angle of an anchor system is the angle between the（）.
A. flukes and the shank
B. shank and the sea bottom
C. mooring line and the sea bottom
D. flukes and the shackle
[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]The horizontal angle between the magnetic meridian and the north-south line of the magnetic compass is（）.
A. deviation
B. variation
C. compass error
D. dip
[单项选择]The required rudder angle is transmitted hydraulically or electrically from the steering wheel at the bridge to the （）at the steering gear, just above the rudder.
A. transmitter
B. tele-motor
C. hydraulic ram
D. hydraulic cylinder
[单项选择]The angle of maximum righting arm corresponds approximatelyto the angle of（）.
A. deck edge immersion
B. the load line
C. downflooding
D. loll
[单项选择]The actual rudder angle reading is（）
A. the rudder angle indicator reading
B. the desired rudder angle reading
C. the measured rudder angle reading
D. the intended rudder angle reading
[单项选择]The vertical angle between the horizontal and the magnetic line of force is the（）.
A. elevation
B. magnetic angle
C. vertical angle
D. dip
