SPECIMEX EXAMINATION FOR SECOND MATE 



47 



Would you measure wire rope as "A" 

 or "B" in the sketch? 



What minimum factor of safety 

 should be used with wire rope? 



Is the steering effect of a right 

 handed propeller greater going ahead 

 or astern? Why? 



Describe the instructions required to 

 be posted in the steering engine room. 



Describe briefly the purpose of a 

 main steam condenser, and the con- 

 sideration that a deck officer may be 

 obliged to give it. 



Why do ships yaw badly in a follow- 

 ing sea? 



What methods are available to reduce 

 yawing? 



Describe the effect of wind on the 

 steering and heading of a vessel under- 

 way. 



What is the most likely damage that 

 may occur to an ordinary merchant 

 vessel when operating in floe-ice, or in 

 areas where large logs or floating ob- 

 jects of like nature may be encountered? 



In the sketch below the seamen are 

 testing a rope to assure its safe working 

 load. Each seaman exerts a force of 100 

 pounds. Is the stress on the line greater 

 in case "A" or case "B"? Explain your 

 answer, stating the total stress on the 

 line in each case. 



What is the purpose of loadlines on 

 vessels? 



How do you measure freeboard? 



When must the steering gear be 

 tested by a licensed officer? 



Describe the devices used for the 

 measuring of ullages. 



How should guys be positioned for 

 maximum efficiency in secui'ing a boom? 



How often must motors in motor- 

 propelled lifeboats be operated? 



What equipment must be provided on 

 gasoline powered lifeboat motors to pre- 

 vent fire caused by carburetor backfire, 

 or danger because of gasoline dripping 

 into the bilge? 



How are motor-lifeboat gasoline tanks 

 vented, i.e. what means are provided to 

 prevent the gasoline becoming "air- 

 bound" in the tanks and not flowing to 

 the fuel lines? 



Describe briefly the use of steam tur- 

 bines as main propulsion units and the 

 methods of connecting the engine to the 

 shaft. 



What precautions should be taken in 

 order to prevent kinking when using 

 manila mooring lines on a windlass 

 gypsy-head or a capstan? 



What is the purpose of the brake 

 fitted on the steering gear of some ves- 

 sels? 



(A) 



(B) 



