SPECIMEN EXAMINATION FOR MASTER 



107 



28. LIFESAVING APPARATUS AND FIREFIGHTING 



What factor of safety is required 

 for blocks, falls, fairleads, padeyes, 

 shackles, links, fastenings, etc. used in 

 connection with lifeboat gear? 



A lifeboat davit block with a maxi- 

 mum working load of 3000 lbs. requires 

 renewal. What breaking load would you 

 specify for the new block? 



On vessels equipped with winches for 

 lowering lifeboats, what speed of lower- 

 ing the loaded boat should be regarded 

 as satisfactory when the winch is fitted 

 with a governor brake? 



A vessel has a beam of 70 feet. The 

 distance from the davit head to the light 

 load line is 50 feet. The boat falls have 

 6 parts at the moving block. 25 feet are 

 required to lead to the cruciform bitt 

 and for turns on the bitt. What length 

 of fall is required? 



What equipment is required on motor 

 lifeboats using gasoline for fuel to pre- 

 vent fires from carburetor backfire, and 

 to prevent the accumulation of gasoline 

 in the bilges of the boat? 



What precautions must be taken on 



EQUIPMENT. 



vessels fitted with lifeboat winches 

 where possible icing conditions may 

 occur? 



You suspect a fire watchman has 

 taken all his keys to the messroom and 

 is "punching his clock" while sitting 

 there. How would you determine if he 

 was guilty of this practice? 



On passenger vessels fitted with mag- 

 netic controls on doors, is it permissible 

 to install holdback hooks or other de- 

 vices to keep the door permanently 

 open? 



On firescreen doors and other doors 

 which are not normally locked on pas- 

 senger vessels, what is the maximum 

 list that the door is required to close 

 against? If you were obliged to adjust 

 the spring tension on such a door what 

 other considerations should be borne in 

 mind? 



How would you embark passengers 

 in lifeboats suspended from gravity 

 davits? Describe precautions in the use 

 of tricing lines in particular. 



29. SHIP SANITATION. 



What is the average maximum con- 

 sumption of fresh water per day per 

 person required in the interest of ade- 

 quate personnal hygiene? 



What chemical is used to treat water 

 in order to insure its safety for drink- 

 ing? 



How should taps be marked when 

 wash water of doubtful purity is used? 



Describe the responsibility of the 

 master with respect to narcotic drugs 

 placed on a vessel for medicinal pur- 

 poses? 



What particular care should be 

 exerted when procuring the following 

 for shipboard consumption : 



(a) Milk; 



(b) Shellfish? 



For what period is a deratization 

 certificate or deratization exemption 

 certificate issued? 



What conditions must exist for a de- 

 ratization exemption certificate to be 

 issued? 



What is the duty of the Master of a 

 vessel with respect to sanitation? 



What penalties is the Master of a 

 vessel liable to for failure to maintain 

 his vessel in a sanitary condition? 



What is the purpose of a quarantine 

 inspection? 



What persons are allowed aboard a 



vessel subject to quarantine inspection? 



What sanitary measures must be 

 taken to bring cats, dogs, or monkeys 

 into the United States on a ship? 



Describe briefly the facilities avail- 

 able for obtaining medical and quaran- 

 tine advice by radio. 



What precautions must be observed 

 in obtaining drinking water in port? 



What provisions are required by 

 reg^ulation on new vessels for the crew 

 to wash and dry their clothing? 



What recreational facilities for the 

 crew are required on late construction 

 vessels by regulation? 



Why is screening desirable on the 

 vents for potable water tanks? 



What chemical is recommended for 

 disinfection after contagious disease 

 has been present in quarters? 



What measures should be taken after 

 washing: dishes to insure that they are 

 in a sanitary condition? 



If a drinking fountain is not avail- 

 able, what facilities should be provided 

 to furnish drinking water? 



What is a certificate of provisional 

 pratique? 



What is radio pratique? 



What precautions would you take in 

 a port infected or suspected of being 

 in^cted with plague? 



