Tank warm up operations should be continued...

Question 1 / 270705eccef9dbacbc34ba4d45cdf

Question 1 of 270705eccef9dbacbc34ba4d45cdf

Tank warm up operations should be continued until the tank metal temperature is at least as warm as __________.

Question 1 of 27070

Tank warm up operations should be continued until the tank metal temperature is at least as warm as __________.

🔍 Key Concepts

• Tank warm-up procedures before loading refrigerated cargoes like LNG or LPG • Relationship between cargo temperature and tank steel temperature to avoid thermal shock • Why it’s important to keep tank metal from being colder than the incoming cargo

💭 Think About

• Think about what happens to steel when it is suddenly exposed to very cold temperatures compared to its current temperature. • Ask yourself: should the tank metal be warmed to a fixed temperature value, or to a temperature related to the cargo that will enter the tank? • Consider which option best prevents stress, cracking, or damage to the tank structure when the cold cargo is introduced.

✅ Before You Answer

• Verify what temperature reference is normally used in industry standards for tank warm-up (cargo temperature vs. outside air). • Check which choice would minimize thermal shock when a very cold cargo is loaded. • Confirm whether warm-up limits are usually given as a specific degree value or as a temperature relative to something else (like ambient or cargo).

Question 1 of 27070

Tank warm up operations should be continued until the tank metal temperature is at least as warm as __________.

-40°C

-20°C

0°C

ambient outside air temperature