A.fuel oil B.sludge C.oil refuse D.All of the above
A.distance B.largeness C.diameter D.measurerment
A.To navigate intentionally B.To navigate intensely C.To navigate carefully D.To navigate completely
A.A continuous sounding with any fog signal apparatus B.A signal sent by radiotelephone consisting of the spoken word Mayday C.An International Code Signal of N.C D.The firing of green star rockets or shells
A.Mayday-Mayday-Mayday B.Pan-Pan (3 times) C.Securite-Securite-Securite D.SOS-SOS-SOS
A.Shuga B.Floe C.Spicule D.Bergy bit
A.shown B.expressed C.appeared D.displayed
A.PAN-PAN B.MAYDAY C.SOS D.SECURITY
A.bicarbonate of soda B.paregoric C.aspirin D.aromatic spirits of ammonia
A.SOS sent three times B.ten one-second dashes with a four-second interval between them C.twelve four-second dashes with a one-second interval between them D.twelve one-second dashes with a short interval between them
