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单选题 Which weather element cannot be measured accurately while on board a moving vessel? ( )
学科：默认课程
时间：2026-01-12 08:28:10
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题目1单选题
Which condition would most likely result in fog? ( )A. Warm moist air blowing over cold waterB. Airborne dust particlesC. Warm moist air blowing over warm waterD. Dew point falling below the air temperature
题目2单选题
Which weather element cannot be measured accurately while on board a moving vessel? ( )A. Relative humidityB. TemperatureC. True wind speedD. Atmospheric pressure
题目3单选题
In the Northern hemisphere, an area of counterclockwise wind circulation surrounded by higher pressure is a _______.( )A. lowB. warm frontC. highD. cold front
题目4单选题
Warm air mass is characterized by _______.( )A. gusty windsB. instabilityC. stabilityD. good visibility
题目5单选题
The wind force and direction cannot be obtained from _______. ( )A. observations by crew membersB. VTS informationC. voyage orderD. weather forecasts
题目6单选题
Southwest wind ______ to west strong gale 9 to violent storm decreasing to gale 8. ( )A. backingB. increasingC. rotatingD. veering
题目7单选题
Which of the following weather report is of 12-24 hours period? ( )A. WarningB. ForecastC. SynopsisD. Depression
题目8单选题
Radiation fog may form on coasts towards dawn, but it generally clears soon after sunrise. It implies that _______.( )A. we may encounter radiation fog in the early morningB. we may encounter radiation fog in the eveningC. we may encounter radiation fog at middayD. we may encounter radiation fog in the afternoon
题目9单选题
Boundary between different air masses is also called _______.( )A. frontB. anticycloneC. cycloneD. pressure gradient
题目10单选题
A decrease in barometric pressure is associated with all of the following except _______.( )A. clear and dry weatherB. proximity to a low pressure areaC. inward spiraling circulationD. rising warm air
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