Air Diving Supervisor Essay

2179 WordsJul 29, 20149 Pages
AIR SUPERVISORS EXAM PROCEDURES AND SAFETY 1 Name............................................ Date............... When connecting the gas supply to a diver, you should a Analyse the gas before connection and analyse it on line b Tell the diver that you are changing the gas c Analyse the gas on line d Make a record of the gas percentage marked on the quad Any gas should be handled like pure oxygen if it contains more than a 23% oxygen b 25% oxygen c 30% oxygen d 50% oxygen A diver is delayed and stays down longer than the maximum bottom time. You should a Decompress him on the longest available table b Decompress him on the longest available table, but add 5 minutes to each stop c Bring him straight to the surface and treat him on USN Table 6 d Decompress him on the longest available table and then put him on Table 5 If the diver’s umbilical is 15 metres long, the standby diver’s umbilical should be a 13 metres b 15 metres c 17 metres d 20 metres During a wet bell dive, you lose communications with the bell and both divers in the water. You should: a Send in the standby b Flash the bell lights to attract the diver’s attention c Lift and lower the bell by 2 metres to attract the diver’s attention d Start to lift the bell slowly A DP red alert may be caused by a Failure of one redundant item of DP equipment b Failure of more than one redundant item of DP equipment c Inevitable loss of position d Safe working limits exceeded During a surface supplied dive, there is a communications failure with the diver. You should: a Check the operation of the communications equipment b Establish rope communications with the diver c Pull the diver back to surface using the umbilical d Send in the standby immediately 2 3 4 5 6 7 8 During a dive, the diver’s breathing rate starts to increase. You should: a Check the on-line oxygen analyser b Check the

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