SPECIMEN EXAMINATION FOR THIRD MATE 



17 



Describe briefly diesel engines. State 

 how they are connected to a propeller 

 shaft. What are their maneuvering 

 characteristics? 



Describe a capstan. 



Describe briefly tui'bo-electric drive. 



What is fi-eeboard? 



What is the purpose of a towing en- 

 gine? 



Where must draft marks be placed on 

 a vessel? 



What is loaded displacement? 



What is light displacement? 



What type of sails are required in 

 lifeboats? 



Give the steps, in rigging a lifeboat 

 mast and sail. 



What is the total deadweight capacity 

 of a ship? 



What is "gybing?" 



Where is the load line located on a 

 ship? 



What is net tonnage? 



What is gross tonnage? 



How are grommets installed on can- 

 vas work? 



What equipment is required by the 

 Regulations to enable persons to get in 

 and out of a boat in the water and 

 climb to the boat deck? 



How do you know how many persons 

 a lifeboat is allowed to carry? 



If you were hove to by the sea anchor 

 and the dragline carried away, how 

 would you keep the boat's head up to 

 the wind and sea? 



How is a sea anchor hauled in? 



Which oar is the stroke in a lifeboat? 



What are the parts of an oar? 



From what wood are oars usually 

 made? 



How is a sea anchor used? 



What may be used in lieu of a sea 

 anchor? 



In addition to sufficient air tankage to 

 float when it is filled with water, what 

 quantity of air tankage is required for 

 each person permitted in a lifeboat? 



How are air tanks of lifeboats tested? 



What materials are used for the con- 

 struction of lifeboats? 



When steel or iron is used for the 

 construction of lifeboats, what is done 

 to prevent corrosion? 



In sailing a lifeboat: 



(a) What is the eff'ect of putting 

 more weight in the forward end of the 

 boat? 



(b) What is the effect of putting 

 more weight aft? 



In a lifeboat under sail, what is 

 meant by : 



(a) Tacking; 



(b) Wearing? 



Canvas is normally designated as to 

 weight by a number. Is No. canvas 

 heavier or lighter than No. 4? 



How are lifeboats numbered on board 

 a vessel? 



What is a bolt rope? 



What is a trysail? 



How would you test canvas? 



What equipment is required for 

 signalling distress from a lifeboat at 

 sea in the daytime? 



State the procedure that you would 

 use in bringing a lifeboat aboard. 



How would you land a lifeboat on a 

 beach with a strong wind blowing on 

 shore, a high sea, and heavy surf? 



Lowering a lifeboat when the ship 

 has sternway, what precautions would 

 you take? 



Where vessels are provided with ma- 

 nila lifeboat falls, how must such falls 

 be stowed in order to protect them from 

 ice? 



List the equipment for a lifeboat 

 which would be suitable for signalling 

 purposes during the hours of darkness. 



In a lifeboat which is not equipped 

 with simultaneous releasing gear, which 

 fall should be unhooked first? 



State in sequence the commands usu- 

 ally employed by the person in charge 

 of a lifeboat in the water to get the 

 boat under way using oars. At the start 

 of the sequence the oars are in the 

 stowed position in the boat. 



What command is usually employed, 

 meaning, "Complete the stroke and then 

 temporarily cease rowing"? 



What command is used when it is de- 

 sired to check the headway of a life- 

 boat? 



Before swinging out a lifeboat, which 

 gripes would you let go first? Why? 



In a motor lifeboat, how does the 

 torque of a right-handed propeller affect 

 the boat? 



What are the most important things 

 to be done before a boat is lowered? 



In what part of a lifeboat are the 

 hatchets kept and for what purpose? 



How would you launch a boat in a 

 heavy seaway? 



Which end of an anchor chain con- 

 necting shackle is placed outboard and 

 why? 



Why are studs used in an anchor 

 chain? 



State the advantages in having 

 an ample scope of chain out when 

 anchored. (Illustrate by sketch if you 

 desire). 



How would you let go an anchor in 

 deep water? 



