Question 298Safety & Environmental - 1st Asst/Chief
70% to passA gurgling noise is heard from within a cargo tank when discharging cargo, this would indicate that the _______________.
Atank foot valve is partially clogged
Btank liquid is too viscous
Cpump is sucking air
Dpump discharge pressure is excessive
AI Explanation
The correct answer is C) the pump is sucking air. A gurgling noise from within a cargo tank during discharge indicates that the pump is drawing in air, which is causing the cargo to aerate and create the gurgling sound. This is a sign that the pump is not fully submerged in the liquid cargo, likely due to a low liquid level in the tank. The other answer choices are incorrect because a partially clogged tank foot valve (A) would cause flow restriction, not air entrainment, and excessive pump discharge pressure (D) would not directly result in a gurgling noise. While a very viscous cargo (B) could contribute to air entrainment, the gurgling noise is a more direct indicator of the pump sucking air.
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