更多"（）indicates unstable weather."的相关试题:
[单项选择]An overcorrecting and unstable engine governor operation is known as（）.
A. droop
B. dead banding
C. dash potting
D. hunting
[单项选择]An unstable upright equilibrium position on a vessel means that the metacenter is（）.
A. lower than the center of gravity
B. at the same height as the center of gravity
C. higher than the baseline
D. on the longitudinal centerline
[单项选择]The radiotelephone message that indicates a station is about to transmit a message concerning the safety of navigation or important meteorological warnings commences with（）.
A. TTT
B. The spoken word PAN
C. The spoken word SECURITE
D. XXX
[单项选择]Which radiotelephone signal indicates receipt of a distress message?（）
A. Roger wilco
B. Romeo，romeo，romeo
C. SOS acknowledged
D. Mayday roger
[单项选择]Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.
A. Expect to see cirrus clouds followed by altostratus and nimbostratus clouds
B. Alter course to remain in the navigable semicircle
C. Prepare for gusty winds，thunderstorms，and a sudden wind shift
D. Expect clear weather，with steady winds and pressure，until the front passes
[单项选择]Which display indicates a vessel conducting mineclearance operations（）.
A. Three balls in a vertical line
B. Two balls in a vertical line
C. One ball near the foremast and one ball at each yardarm
D. One diamond near the foremast and one ball at each yardarm
[单项选择]A barometer showing falling pressure indicates the approach of a（）.
A. high pressure system
B. low pressure system
C. high dew point
D. low dew point
[单项选择]The Tonnage Certificate indicates （）.
A. deadweight tons
B. displacement tons
C. net tons and gross tons
D. volume tons
[单项选择]Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil?（）
A. Water discharging from the water outlet of the lube oil purifier
B. Fuel oil discharging from the water outlet of the lube oil purifier
C. Lube oil discharging from the water outlet of the lube oil purifier
D. A change in the lube oil viscosity
[单项选择]What monitoring device best indicates the load being carried by a diesel engine?（）
A. Lube oil pressure gauge
B. Jacket water temperature gauge
C. Tachometer
D. Exhaust pyrometer
[单项选择]Which condition indicates the air side fouling of an after-cooler on a turbocharged diesel engine?（）
A. An increased air temperature differential between the cooler inlet and outlet
B. A decrease in the air pressure differential across the cooler
C. Excessive condensate forming in the air box
D. A decrease in the air temperature differential between the cooler inlet and outlet
[单项选择]An instrument that indicates wind direction is known as a(n)（）.
A. weather vane，wind vane or wind sock
B. hydrometer
C. hygrometer
D. sling psychrometer
[单项选择]Which word indicates color variation in the characteristics of a light?（）
A. Opposing
B. Changing
C. Reversing
D. Alternating
[单项选择]A steep barometric gradient indicates （）.
A. calms
B. light winds
C. strong winds
D. precipitation
[单项选择]The agonic line on an isomagnetic chart indicates the （）.
A. magnetic equator
B. magnetic longitude reference line
C. points where there is no variation
D. points where there is no annual change in variation
