Ocean7212-2

Ocean7212-2

Professional Development

6 Qs

quiz-placeholder

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Ocean7212-2

Ocean7212-2

Assessment

Quiz

Science

Professional Development

Practice Problem

Medium

Created by

tzuting chen

Used 5+ times

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6 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

兩側相差多少 dB時,為beamwidth定義? What is the dB difference used to define the beamwidth on either side?

1 μPa

3 μPa

3 dB

2 dB

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

當音鼓角度越大時,下列何者為優點? What is the advantage of an increased beamwidth angle?

可以鎖定目標物Find the target easily

風浪很差時,崎嶇的地形 Rough terrain in poor wind and wave conditions

可以擁有很大的陰影帶 a large shadow zone

風浪很差時,平坦的海床 Flat seabed in poor wind and wave conditions

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列何者"不是" Split Beam 的優點? Which of the following is not an advantage of Split Beam?

回波強度分析 Echo Intensity Analysis

很便宜 Very inexpensive

精確定位 Accurate positioning

運動追蹤 Motion tracking

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is true about Continuous Wave (CW) and Frequency Modulation (FM)?

CW signals have a constant frequency

CW and FM signals exhibit frequency variation but in different manners.

CW signals are characterized by varying frequencies

CW signals are used for high-frequency, while FM signals are low-frequency

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下周9月19的課程幾點開始?

12:20

13:20

14:10

15:10

6.

DRAW QUESTION

45 sec • 1 pt

一隻大魚在EK影像中的樣子為何?

在100公尺水深的50公尺處
往左邊游~

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