CHEMCO Exit Exam • Set 2 Question 7 of 30
What instrument measures relative humidity and dew point inside cargo tanks before loading moisture-sensitive chemicals?
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Direct Answer
Option D: Electronic Hygrometer / Dew point meter
Moisture-sensitive cargoes require dry conditions. An electronic hygrometer or dew point meter, as referenced in the P&A Manual, accurately measures humidity and dew point to ensure tanks are sufficiently dry before loading.
All Options
A
Barometer
B
Chronometer
C
Anemometer
D
Electronic Hygrometer / Dew point meter
(Correct Answer)
Detailed Explanation & Context
Moisture-sensitive cargoes require dry conditions. An electronic hygrometer or dew point meter, as referenced in the P&A Manual, accurately measures humidity and dew point to ensure tanks are sufficiently dry before loading.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).
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