更多"Gyrocompass repeaters reproduce the"的相关试题:
[单项选择]Gyrocompass repeaters reproduce the indications of the master gyrocompass. They are（）.
A. accurate only in the Polar regions
B. accurate electronic servomechanisms
C. hand operated
D. accurate only if the vessel is underway
[单项选择]Indications of the master gyrocompass are sent to remote repeaters by the（）.
A. follow-up system
B. transmitter
C. phantom element
D. azimuth motor
[单项选择]The gyrocompass error resulting from your vessel’s movement in OTHER than an east-west direction is called（）.
A. damping error
B. ballistic deflection
C. quadrantal error
D. speed error
[单项选择]At the master gyrocompass，the compass card is attached to the（）.
A. spider element
B. sensitive element
C. link arm
D. pickup transformer
[单项选择]Quadrantal error in a gyrocompass has its GREATEST effect（）.
A. in high latitudes
B. near the equator
C. on north or south headings
D. on intercardinal headings
[单项选择]The reaction of a gyrocompass to an applied force is known as（）.
A. precession
B. earth rate
C. gyroscopic inertia
D. gravity effect
[单项选择]The directive force of a gyrocompass（）.
A. increases with latitude，being maximum at the geographic poles
B. decreases with latitude，being maximum at the geographic equator
C. is greatest when a vessel is near the Earth's magnetic equator
D. remains the same at all latitudes
[单项选择]Which statement about the gyrocompass is FALSE（）.
A. Its accuracy remains the same at all latitudes
B. It seeks the true meridian
C. It can be used near the Earth's magnetic poles
D. If an error exists，it is the same on all headings
[单项选择]If the gyrocompass error is east，what describes the error and the correction to be made to gyrocompass headings to obtain true headings?（）.
A. The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain true
B. The readings are too low and the amount of the error must be subtracted from the compass to obtain true
C. The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain true
D. The readings are too high and the amount of the error must be subtracted from the compass to obtain true
[单项选择]The first indications a mariner will have of the approach of a warm front will be （）.
A. large cumulonimbus (thunderclouds) building up
B. high cirrus clouds gradually changing to cirrostratus and then to altostratus
C. fog caused by the warm air passing over the cooler water
D. low dark clouds accompanied by intermittent rain
[单项选择]Early indications of the approach of a hurricane may be all of the following EXCEPT（）.
A. short confused swells
B. gradually increasing white clouds (mare's tails)
C. pumping barometer
D. continuous fine mist-like rain
[单项选择]Indications of （）are loss in power and irregular running of the engine, high exhaust temperatures of corresponding unite, high local temperature in scavenge trunk, surging of turbocharger, and sparks and smoke emitted from scavenge drains.
A. a crankcase explosion
B. a scavenge fire
C. abnormal compression ratio
[单项选择]The indications of a scavenge fire are excessive black smoke, （） and peeling from scavenge trunking.
A. turbo-chargers surge
B. spark seen from the drains
C. paint blistering
D. all above are right
