Question 1424Deck General70% to pass
Which statement about entry into a space that has been sealed for a long time is TRUE?
AI Explanation
The correct answer is C. A tank that has been used to carry hazardous liquids should be tested for oxygen content, toxicity, and explosive gases.
This is correct because spaces that have been sealed for a long time can develop hazardous conditions due to the lack of ventilation. Testing for oxygen, toxicity, and explosive gases is crucial before entering such spaces to ensure the safety of the personnel. Options A, B, and D are incorrect because they do not fully address the need for proper testing and evaluation of the space before entry.
Related Questions
#1422 What color must the last 1.0 meter (3.3 feet) of piping before the vessel vapor connection be painted? #1423 Which step is NOT generally taken when gas-freeing a tank? #1425 Which statement about entering into a tank which has been sealed for a long time is TRUE? #1426 A marine chemist issues gas free certificates and is certified by the _______________.#1427 You have been carrying a liquid with flammable limits of 1% to 7% mixture with air. If your instructions say that no one shall enter the tank if the vapor concentration is over 15% of the LEL, what is the maximum allowable percentage of vapors for men to enter?