SOLAS Quiz 4 with complete solution;summer 2023

SOLAS Quiz 4 with complete solution;summer 2023
On which type davit does the davit head stay at the same height?
A. Radial
B. Sheath-screw
C. Quadrantal
D. Gravity
A
Which type of davit is not considered to be a mechanical davit?
A. Sheath-screw boom
B. Radial
C. Crescent
D. Quadrantal
B
A mechanical davit is designed to automatically __________.
A. position the boat at the embarkation station
B. lift the boat off the inboard chocks
C. energize the winch for the falls
D. set the brake on the winch
B
Your vessel is equipped with mechanical davits. When stowing the lifeboat after a drill
while underway, you should __________.
A. leave the tricing pendants slack
B. ensure the falls are taut
C. leave the outboard part of the cradle in the down position
D. secure the inboard gripes only
B
While cranking out a quadrantal davit, slippage of the quadrant due to excessive wear
or failure of the teeth in the quadrant will cause the __________.
A. davit arm to pivot on the traveling nut and the head to fall outboard
B. traveling nut to lock up in place on the worm gear
C. limit switch to engage and hold the traveling nut in position
D. winch brake to lock in position and prevent lowering the boat
A
The boat is stowed on the davit rather than on a cradle with which type of davit?
A. Crescent
B. Sheath-screw boom
C. Quadrantal
D. Radial
A
What is required to launch a boat stowed in a crescent davit?
A. Hoist the boat clear of the cradle.
B. Release the outboard part of the cradle.
C. Rig the tricing lines.
D. Crank the crescent out.
D

, Many sheath-screw davits have markings to indicate the maximum angle to which they
should be cranked out. If the angle is exceeded, the davit __________.
A. may jam against the stops
B. will not automatically position the boat at the embarkation station
C. screw may come out of the sheath
D. will chafe against the falls and may cause their failure
C
The lifeboats on your vessel are stowed on cradles on deck and are handled by sheath-
screw boom davits. Which of the following statements about launching a boat is TRUE?
A. The boat should be hoisted a few inches clear of the cradle before cranking out the
davits.
B. The inboard gripes should be cast off before the outboard gripes.
C. The outboard section of the cradle must be released.
D. The tricing pendants will automatically bring the boat alongside at the embarkation
deck.
C
The pivot pin at the base of a sheath-screw boom davit must be __________.
A. inserted each time before the booms are cranked out
B. periodically removed for inspection and lubricated
C. replaced at each inspection for certification
D. in the locked position after the boat is cradled and griped down
B
The type of davit on which you must turn a crank in order to swing the lifeboat out over
the ship's side is a __________.
A. sheath-screw davit
B. gravity davit
C. radial davit
D. bruckner davit
A
The most common type of davit found on merchant vessels today is the __________.
A. radial
B. sheath-screw
C. gravity
D. quadrantal
C
Which davit type may be operated by one man?
A. Quadrantal
B. Gravity
C. Sheath-screw
D. Radial
B
What could be a result of insufficient lubrication of lifeboat winches and davits?
A. Moisture accumulation in winch motor damaging and electrical wiring
B. Freezing of gears in cold weather
C. Corroding of sheaves on the davits so they will not rotate
D. All of the above