Question 1084Deck General70% to pass
What must cargo pumps in tank vessels carrying grade D liquid cargo be isolated from sources of vapor ignition by?
AI Explanation
The correct answer is C) gastight bulkheads.
Cargo pumps in tank vessels carrying grade D liquid cargo must be isolated from sources of vapor ignition by gastight bulkheads. This requirement is specified in the regulations for tank vessels, which mandate that cargo pump rooms and pump rooms containing cargo pumps for grade D liquid cargo be separated from potential ignition sources by gastight bulkheads.
The other options are incorrect because general cargo spaces (A) and passageways or living quarters (B) do not provide the necessary isolation from vapor ignition sources, while cofferdams (D) are not the specific structural element required by the regulations.
Related Questions
#1082 In a tank vessel constructed in 1970, carrying grade A, B, C, or D liquid cargo, what is required to isolate cargo pumps from sources of vapor ignition? #1083 Your ship has loaded 22,000 barrels of crude oil, departing Valdez, Alaska for Panama. When loaded the cargo temperature was 90°F. API was 15°. The volume correction factor (VCF) is .0004. If the cargo temperature is expected to be 100°F at the discharge port, how many gallons will be offloaded? #1085 By regulation, cargo tank atmosphere must be inert before and during which operation? #1086 Portable fire extinguishers must be provided for the cargo tank area of an unmanned tank barge _______________.#1087 Combustible liquids are divided into how many grades?