Rigging Flashcards
WHAT IS STANDING RIGGING?
STAYS AND SHROUDS (LINES WHICH SUPPORT BUT DO NOT MOVE).
WHAT IS RUNNING RIGGING?
THOSE GOING THROUGH BLOCKS (SUCH AS LIFTS, WHIPS AND VANGS).
WHAT STANDING RIGGING GOES FORE AND AFT?
STAYS
WHAT ARE THE THREE TYPES OF CARGO BOOM BLOCKS?
DIAMOND, OVAL, AND ROLLER BEARING.
DO DIAMOND BLOCKS HAVE GREASE FITTINGS?
YES
WHAT ARE FIBER ROPE BLOCKS LUBRICATED WITH?
HARD GRAPHITE GREASE.
HOW ARE DIAMOND AND OVAL BLOCKS NORMALLY USED?
AS TOPPING LIFTS OF CARGO BOOMS.
WHAT TYPE OF BLOCKS ARE HEAD, HEEL, AND FAIRLEAD BLOCKS?
ROLLER BEARING.
WHAT IS CAST ON THE SHELL OF A ROLLER BLOCK?
WORKING LOAD, PROOF TEST AND SIZE OF ROPE.
WHEN ARE ROLLER BEARING BLOCKS USED?
WHEN HIGH SPEED OPERATION IS NEEDED.
HOW IS A CARGO BLOCK NAMED, REGARDLESS OF TYPE?
BY ITS LOCATION ON A CARGO RIG.
WHAT IS THE BLOCK AT THE HEAD OF A BOOM, THROUGH WHICH THE WHIP RUNS, CALLED?
HEAD BLOCK.
WHAT IS THE BLOCK AT THE FOOT, WHICH FAIRLEADS THE WIRE TO THE WINCH, CALLED?
HEEL BLOCK.
WHAT BLOCK IS IN THE MIDDLE OF A BOOM?
THE SLACK WIRE BLOCK.
WHAT IS A BLOCK THAT IS WELDED OR BOLTED BY ONE CHEEK TO A BULKHEAD OR DAVIT. FOR FAIRLEAD, CALLED?
CHEEK BLOCK.
WHAT IS THE ADVANTAGE OF A SNATCH BLOCK?
IT CAN BE OPENED TO PUT LINE IN.
WHAT ARE TAIL BLOCKS?
SINGLE BLOCKS USED ALONE WITH A WHIP, OR AS A RUNNER.
WHAT ARE FIVE THINGS THAT MUST BE KNOWN TO CORRECTLY ORDER A BLOCK?
WHETHER WOOD OR METAL; SIZE; RIG NUMBER: WITH OR WITHOUT BECKET; AND THE NUMBER OF SHEAVES.
WHAT IS THE RIG?
THE HOOK, SHACKLE, OR SWIVEL FITTED TO THE END OF A BLOCK.
HOW ARE RIGS IDENTIFIED?
BY NUMBER.
WHEN ARE BLOCKS INVENTORIED？
QUARTERLY.
HOW IS A TACKLE DESIGNATED?
BY THE NUMBER OF SHEAVES IN THE BLOCKS OR THE PURPOSE OF USE.
WHAT IS A SINGLE WHIP?
ONE SINGLE BLOCK UP.
WHAT IS A RUNNER?
ONE SINGLE BLOCK DOWN.
WHAT IS A GUN TACKLE?
A SINGLE BLOCK OVER A SINGLE BLOCK.
WHAT IS A LUFF TACKLE (JIGGER)?
A DOUBLE OVER A SINGLE.
WHAT IS A TWOFOLD PURCHASE?
A DOUBLE OVER A DOUBLE.
WHAT IS A DOUBLE LUFF?
A TREBLE OVER A DOUBLE.
WHAT IS A THREEFOLD PURCHASE?
A TREBLE OVER A TREBLE.
WHAT TYPE OF REEVING METHOD IS USED FOR A DOUBLE LUFF?
RIGHT ANGLE METHOD.
HOW SHOULD TOPPING LIFTS BE ROVE?
PARALLEL.
HOW CAN YOU DETERMINE THE MECHANICAL ADVANTAGE OF A TACKLE?
COUNT THE NUMBER OF FALLS AT THE MOVABLE BLOCK.
WHAT IS THE MECHANICAL ADVANTAGE OF A TACKLE?
THE RATIO BETWEEN THE LOAD AND THE POWER REQUIRED TO LIFT THE LOAD.
HOW MUCH FRICTION IS ALLOWED FOR EACH SHEAVE?
10%
WHAT IS INSTALLED AT THE BOTTOM OF STAYS AND SHROUDS TO ALLOW FOR ADJUSTMENT?
TURNBUCKLES.
WHAT IS ATTACHED TO TURNBUCKLES TO KEEP THE FROM LOOSENING DUE TO VIBRATION?
KEEPERS.
WHAT ARE STAYS AND SHROUDS FITTED WITH IF THEY HAVE TO BE LOWERED OFTEN?
PELICAN HOOKS.
WHY ARE BONDING STRAPS REQUIRED ON STAYS AND SHROUDS?
TO GROUND THEM.
HOW TIGHT SHOULD TURNBUCKLES BE?
HANDTIGHT, THEN 1 INCH FOR EACH 60 FEET OF STAY LENGTH.
WHERE DO YOU MEASURE TURNBUCKLE?
ITS THREAD.
WHERE DO YOU MEASURE A HOOK?
ON THE BACK (BY CURVE).
