Chapter 7 – Cargo Tank Venting – Set B

Source: Guidelines for the Transport and Handling of Limited Amounts of Hazardous and Noxious Liquid Substances in Bulk on Offshore Support Vessels (OSV Chemical Code), Chapter 7 – Cargo Tank Venting.
Reference: imorules.com – Chapter 7, Cargo Tank Venting

Question 9 of 10

9. During gas freeing, vapour may be discharged through outlets at least 2 m above cargo tank deck level that are NOT protected by flame-prevention devices, provided the vertical exit velocity maintained is at least:

A) 10 m/s B) 20 m/s C) 30 m/s D) 40 m/s

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