Question 1518Deck General70% to pass
Which statement is TRUE concerning insulating flanges?
AI Explanation
The correct answer is A) They should be inspected and tested periodically to ensure that the insulation is clean and in good condition.
This is correct because insulating flanges are used to prevent galvanic corrosion between dissimilar metals. Over time, the insulation on these flanges can become damaged or contaminated, reducing their effectiveness. Periodic inspection and testing is required to ensure the insulation is functioning properly and the flange is providing the necessary electrical isolation.
The other options are incorrect because: B) Hot work should not be performed on deck without proper safety precautions, regardless of the presence of an insulating flange. C) Switching off a cathodic protection system is not an acceptable substitute for using an insulating flange. D) There is no specific resistance value requirement for insulating flanges, as long as the insulation is effective in providing the necessary electrical isolation.
Related Questions
#1516 What should you do in order to reduce the accumulation of static electricity while loading petroleum products? #1517 What is the lowest temperature at which a liquid will give off sufficient vapors to form a flammable mixture with air? #1519 When is it acceptable to use power-driven or manually-operated spark producing devices in the pump room, where grades A, B, C, and D liquid cargoes are involved? #1520 Which of the following does not require cargo transfer operations on a tank vessel to be stopped? #1521 You have berthed in a port area with other tank vessels. What signal is displayed by a vessel to indicate it is transferring flammable or combustible liquid cargo?