78)A Kort nozzle is a(n) __________.
A) hollow tube surrounding the propeller used to improve thrust
B) nozzle attached to a firefighting hose
C) intake valve on a diesel engine
D) piston cylinder on a diesel engine
79)A "contra-guide" is a type of __________.
A) bow thruster
B) cargo gear
C) steering engine
80)The horizontal flat surfaces where the upper stock joins the rudder are the __________.
A) rudder keys
B) rudder palms
C) lifting flanges
D) shoes of the rudder
81)The vessel's "quarter" is located __________.
B) dead astern
C) just forward of the beam on either side
D) on either side of the stern
82)A chock __________.
A) is a deck fitting used to shackle gear to the deck
B) permits easy jettisoning of deck cargo in an emergency
C) prevents stress concentration in the bulwark
D) provides openings through the bulwark for mooring lines
83)What is the purpose of the freeing ports on a vessel with solid bulwarks?
A) Allow water which may be shipped on deck to flow off rapidly
B) Permit easy jettisoning of deck cargo in an emergency
C) Prevent the formation of any unusual stress concentration points
D) Lighten the above deck weight caused by a solid bulwark
84)Freeing ports on a vessel with solid bulwarks __________.
A) prevent stress concentration in the bulwark
B) permit easy jettison of deck cargo in an emergency
C) provide openings through the bulwarks for mooring lines
D) allow water shipped on deck to flow off rapidly