Question 26 of 30
Why a two way valve is provided in the air or inert gas line provided to check the leakage of oil in the cofferdam?
One is for the normally closed position and the other is for checking the leakage of hydraulic oil in the motor side
One is for the normally closed position and the other is for checking the leakage of cargo oil in the pump side
One is for the normally closed position, the other is for checking the leakage of cargo oil in the pump side and the third one is for checking the leakage of hydraulic oil in the motor side **Correct answer : One is for the normally closed position, the other is for checking the leakage of cargo oil in the pump side and the third one is for checking the leakage of hydraulic oil in the motor side**
Advertisement
Answer & Explanation
The correct answer is Option C: One is for the normally closed position, the other is for checking the leakage of cargo oil in the pump side and the third one is for checking the leakage of hydraulic oil in the motor side **Correct answer : One is for the normally closed position, the other is for checking the leakage of cargo oil in the pump side and the third one is for checking the leakage of hydraulic oil in the motor side**.
The cofferdam purging/monitoring system uses a multi-way valve arrangement to ensure that the cavity between the cargo pump and hydraulic motor can be isolated. This allows for independent testing for both cargo oil leakage and hydraulic oil leakage using inert gas or air.