26 



UNITED STATES COAST GUARD 



Describe the operation of a jet ex- 

 hauster. 



How often must cargo piping be 

 tested on tank vessels? 



How often must cargo pump pressure 

 gauges on a tank vessel be tested for 

 accuracy? 



How often must cargo pump relief 

 valves on a tank vessel be tested for 

 satisfactory operation? 



What pressures are forbidden by reg- 

 ulation for cargo hose when transfer- 

 ring cargo on a tank vessel? 



What type of device may be used by 

 shippers and consignees to detect any 

 variation in cargo temperature that 

 may have occurred during a voyage? 



What precautions should be taken in 

 opening a hold in which barrels or cases 

 of gasoline are stowed? 



As applied to bulk oil cargoes, what 

 is meant by : 



(a) Ullage; 



(b) Innage; 



(c) Thiefage? 



What is the usual method of cleaning 

 oil tanks? 



What would you do if you had a bad 



oil spill on deck while transferring oil 

 cargo on a tanker? 



In loading an oil cargo, what would 

 you do if the tank valve jammed when 

 open? 



When loading case oil, what should 

 be done with leaking cases? 



What permission should be secured 

 before general cargo, freight, etc. can 

 be handled at the same time that gaso- 

 line in bulk is being transferred? 



How could you determine the regula- 

 tions governing shipment of animals ex- 

 ported from the United States? 



What should be done if an oil hose 

 leaks badly at the hose connection? 



How should the sampling or sounding 

 hole (ullage hole) in an oil tank be pro- 

 tected when the tank is open and not 

 gas free? 



What is the purpose of a bonding 

 wire as illustrated and where should 

 it be connected? 



Why should a bonding wire be con- 

 nected before the cargo hose, and the 

 connection maintained until the hose is 

 removed? 



Explain the use of a switch in a 

 bonding cable. 



28. LIFESAVING APPARATUS AND FIREFIGHTING EQUIPMENT. 



Describe the purpose and use of the 

 following lifeboat equipment. 



(a) Hatchets. 



(b) Smoke signals. 



(c) Drinking cups. 



What is the length of line which is 

 required to be attached to one of the 

 lifebuoys on each side of a vessel? 



What amount of buoyant apparatus 

 is required on ocean passenger vessels, 

 and how is it to be stowed? 



How many lifeboats and type "A" 

 life rafts are required aboard coastwise 

 passenger vessels of over 300 gross 

 tons? 



