Question 1423 Deck General

70% to pass

Which step is NOT generally taken when gas-freeing a tank?

A Removal of corrosion products and sludge
B Fresh air ventilation
C Washing the tank interior with sea water
D Application of degreasing solvents
AI Explanation

The correct answer is D) Application of degreasing solvents. When gas-freeing a tank, the typical steps do not involve the application of degreasing solvents. The proper steps are: 1) Removal of corrosion products and sludge, 2) Fresh air ventilation to displace any hazardous vapors, and 3) Washing the tank interior with sea water to remove any remaining residues. Degreasing solvents are generally not used as part of the gas-freeing process, as they can introduce additional fire and explosion hazards. The other answer choices (A, B, and C) describe the standard gas-freeing procedures, while the use of degreasing solvents is not a typical step in this process.

Related Questions
Q@q.QuestionNumber:The procedure of strengthening damaged structures on a MODU by using wood or ste... Q@q.QuestionNumber:Which action must be taken when an individual cargo tank is closed off from the ... Q@q.QuestionNumber:In illustration D038DG below, what type of anchor is depicted? Q@q.QuestionNumber:Who should be notified prior to starting up a crane? Q@q.QuestionNumber:What does the line labeled "MS" indicate on the Great Lakes load line model show...

Ready to test your knowledge?

Take a Deck General Practice Exam
Official Resources
USCG Navigation Center USCG National Maritime Center Merchant Mariner Credentials
← Previous Question All Questions Next Question →

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience with progress tracking.

Get the App