Engineering Study Guides Submersion and trimming mechanism of Submarine Technology Introduction of Submarine and Usage of Submarine. WHAT ARE THE ADVANTAGES OF A CSD? HOW DO CSDS OFFLOAD OR DISCHARGE DREDGED MATERIAL? WHAT IS A SPUD POLE? WHAT INFLUENCES A CSD’S PRODUCTION RATE? HOW DOES THE CUTTER HEAD WORK? WHEN ARE CSDS USED? HOW DOES THE CSD WORK? ARE CSDS FLEXIBLE? WHAT IS A CUTTER SUCTION DREDGER? CHARACTERISES OF A CSD?