When inspecting manhole covers on a tank vehicle, you should make sure they:

Have gaskets and close correctly. Section 8.1.1: Check manhole covers and vents. Make sure the covers have gaskets and they close correctly.

When inspecting manhole covers on a tank vehicle, you should make sure they:

ANSWER BREAKDOWN
  • A. Incorrect. "Are painted red" is not correct. Check manhole covers and vents. Make sure the covers have gaskets and they close correctly.
  • B. Correct. Check manhole covers and vents. Make sure the covers have gaskets and they close correctly.
  • C. Incorrect. "Are left slightly open for ventilation" is not correct. Check manhole covers and vents. Make sure the covers have gaskets and they close correctly.
  • D. Incorrect. "Are welded shut" is not correct. Check manhole covers and vents. Make sure the covers have gaskets and they close correctly.