1. Ihe oluenwere ike iji ya maka mgbatị ngwụcha ngwụcha, nke nwere ike jikọta ya na ihe a ga -akwalite n'oge arụ ọrụ.
2. Nkenkpa oluenwere ike iji n'etiti rigging na ngwongwo ngwụcha wee bụrụ naanị njikọ.
3. Mgbe ejiri rigging na njikọ osisi,nkpa oluenwere ike iji ya maka mgbago elu dị elu karịa mgbanaka mgbago elu iji jikọọ na efere ntị n'akụkụ ala nke osisi, nke dabara adaba maka nrụnye na ịtọpụ.