航海英语【船长甲类】题库 单选题 1分 ______ is not a factor which will affect the accuracy of GPS receiver. A. Detective availability B. Local environmental conditions C. Autonomous mode versus differential correction mode versus RTCM mode D. The averaging of recorded locations 点击查看答案 进入题库练习 参考答案: A 你可能感兴趣的试题 1 单选题 1分 An anemometer on a moving vessel measures ______. A. apparent wind speed only B. true wind speed and true wind direction C. true wind speed only D. apparent wind speed and true wind direction 点击查看答案 2 单选题 1分 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 点击查看答案 3 单选题 1分 AREAS WHICH CANNOT BE SCANNED BY THE RADAR OF THE VESSEL BECAUSE THEY ARE SHIELDED BY PARTS OF ITS SUPERSTRUCTURE, MASTS, ETC. means ______. A. blind sectors B. sheltered area C. unseen area D. unscannable area 点击查看答案 4 单选题 1分 The common way to obtain your ships position is ______. A. keeping a close watch and look-out B. taking a radar range and bearing C. observing a radar target and listening to signals D. keeping a well clear caution 点击查看答案 5 单选题 1分 ______ is not a factor which will affect the accuracy of GPS receiver. A. Detective availability B. Local environmental conditions C. Autonomous mode versus differential correction mode versus RTCM mode D. The averaging of recorded locations 点击查看答案