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Ocean7212-4

Total questions: 10

Worksheet time: 3mins

Name
Class
Date
1.

新海研2號適合在哪種水深進行調查? R/V NOR2 is suitable for conducting surveys at what depth?

a)

4000 m

b)

1400 m

c)

400 m

d)

40m

2.

MBES收集時,找不到海床時,不要... What should you avoid doing if the system can't find the seafloor while collecting MBES data?

a)

調整掃幅角度 Adjust the swath angle

b)

檢查是否有其他干擾 Check for other interferences

c)

直接重新開機 Simply restart the system

d)

強制輸入可能的水深 Manually input the possible depth

3.

Which of the following is NOT a technique used for beam steering in an array system?

a)

Time delay between array elements

b)

Physical transducer movement

c)

Frequency modulation of the transmitted pulse

d)

Phase shift across array elements

4.

Which of the following parameters is most critical for a system to accurately detect the seafloor?

a)

Angle

b)

Phase

c)

Time

d)

Amplitude

5.

Does the Doppler effect occur in Frequency Modulation (FM)?

a)

Yes

b)

No

6.

Which of the following is NOT included in the hydrographic survey operation specifications?

a)

專等 Exclusive Order

b)

特等 Special Order

c)

2等 Order 2

d)

5等 Order 5

7.

In a patch test, why do we need two parallel survey lines with similar vessel speeds but moving in opposite directions?

a)

SVP

b)

Timing

c)

Yaw (Heading)

d)

Roll

8.

潮汐修正沒有以下哪個方法? Which of the following is NOT a method for tidal correction?

a)

Tide Model

b)

Tide gauge

c)

Tide station (Weather Forecast Center)

d)

GNTT

9.

What is TPU?

a)

Total Produced Uncertainty

b)

Total Propagated Uncertainty

c)

Total Vertical Uncertainty

d)

Total Preparation Uncertainty

10.

Which of the following is an effective way to reduce uncertainty in ocean survey data?

怎樣有效地增加資料品質

a)

Increase the swath angular

b)

Increase computation QC data time

c)

Eliminate good data points

d)

Reduce the swath angular