Marine workshop practice

Yesterday, our group just started marine workshop practice. Sir Zul and Sir Iskandar taught us what the purpose of valve and explain it to us and about safety inside the workshop before doing any job. We were asked to make 5 groups to work on and were asked to disassembled and assembled the valve. While we disassembled parts of the valve, we're doing some inspections and maintenance to make it work properly and after that, we assembled it back and tested it with a bucket of water whether there any leakage or not.