on loran charts covering areas where sky waves are used
in the Radio Aids to Navigation,PUB 117
in the Loran-C Correction Tables
Sky waves cannot be matched to ground waves in LORAN-C to produce a usable reading
第1题:
The purpose of the "set" hand on an aneroid barometer is to ______.
A.adjust the barometer
B.indicate any change in the reading of the barometer
C.provide a correction for height above sea level
D.provide a correction for temperature changes
第2题:
You have calibrated your RDF.When compiling the calibration table,the correction to be applied to any future RDF bearings is listed against the ______.
A.true bearing of the transmitter
B.relative bearing of the transmitter
C.heading of the vessel
D.time of reception
第3题:
I()a book when the telephone().
A. was reading…rang
B. read…rang
C. was reading…was ringing
第4题:
第5题:
第6题:
Most modern Loran-C receivers,when not tracking properly,have a(n)______.
A.Bell alarm to warn the user
B.Lighted alarm signal to warn the user
C.Alternate signal keying system
D.View finder for each station
第7题:
A vessel is wind rode when it is ______.
A.at anchor and heading into the wind
B.backing into the wind
C.carrying lee rudder
D.necessary to apply a leeway correction to the course
第8题:
The correction to be applied to a LoranC reading when matching a sky wave to a ground wave may be found______.
A.on loran charts covering areas where sky waves are used
B.in the Radio Aids to Navigation PUB 117
C.in the LoranC Correction Tables
D.Sky waves cannot be matched to ground waves in LoranC to produce a usable reading
第9题:
第10题:
When I was a child, I enjoyed()picturebooks.