Your vessel is participating in the...

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Question 1 of 2066636ee928f7522a1c51a612

Your vessel is participating in the Voluntary Observing Ship Program, you are preparing WS Form B- 80 as seen in illustration D041NG below. The dry bulb thermometer reads 34°F and the wet bulb thermometer reads 31°F. How would you encode the air temperature groups in the report?

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Question 1 of 20

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🔍 Key Concepts

• WS Form B-80 air temperature coding on line 1s,TTT (dry bulb) and 2sTdTdTd (dew point or wet-bulb related group) • How Fahrenheit must be converted to Celsius before encoding the TTT and TdTdTd groups • The meaning of the leading digit 1 or 2 and the sign digit s in the temperature groups (above/below freezing)

💭 Think About

• First, decide whether the temperatures should be treated as above or below 0°C and how that affects the sign digit s in each temperature group • Convert 34°F and 31°F to °C, then determine how many tenths of a degree each is and how they would be rounded for TTT and TdTdTd • Compare the resulting coded groups you expect for dry-bulb and wet-bulb to the patterns in each answer choice (positions of 1,2,s and number values)

✅ Before You Answer

• Be sure you are using Celsius, not Fahrenheit, when forming the 1sTTT and 2sT'T'T' groups • Verify whether the second group in the answer choices is meant to represent wet-bulb vs. dew point and how that is derived from the given data • Double-check the encoding format from the illustration legend (which column and digits correspond to indicator 1s,TTT and 2s,TdTdTd) before eliminating any options

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