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Bm2 Study Guide > Wire Rope > Flashcards

Wire Rope Flashcards

1
Q

HOW IS RICHT LAID ROPE TRANSFERRED FROM ONE REEL TO ANOTHER？

A

FROM TOP TO TOP. LEFT TO RIGHT.

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2
Q

HOW DO YOU UNCOIL WIRE ROPE?

A

ROLL IT NEVER LET THE BICHTS SLIP OVER THE ENDS OF THE REEL

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3
Q

WHAT IS THE MINIMUM DIAMETER SHEAVE THAT WIRE ROPE SHOULD BE USED WITH?

A

20 TIMES THE DIAMETER OF THE ROPE.

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4
Q

WHAT CAUSES WEAR ON A SHEAVE FASTER, SPEED OR LOAD?

A

SPEED.

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5
Q

WHAT TYPES OF BENDS SHOULD BE AVOIDED IN WIRE ROPE?

A

REVERSE BENDS LIKE THE LETTER “S”.

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6
Q

WHEN IS WIRE ROPE CONSIDERED BEYOND USE?

A

WHEN THE DIAMETER OF THE OUTER WIRES ARE REDUCED TO 1/2 THEIR ORIGINAL DIAMETER.

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7
Q

WHEN IS WIRE ROPE UNSAFE?

A

If 4% OF THE TOTAL NUMBER OF WIRES ARE BROKEN WITHIN THE LENCTH OF ONE WIRE ROPE
LAY, OR IF 3 BROKEN WIRES IN ONE STRAND OF 6X7,6 BROKEN WIRES IN ONE STRAND OF 6X19，OR 9 BROKEN WIRES IN ONE STRAND OF 6X37.

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8
Q

WHAT DOES 6X19 WIRE ROPE MEAN?

A

6 STRANDS WITH 19 WIRES PER STRAND.

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9
Q

WHERE AND HOW MANY SEIZINGS SHOULD BE ON WIRE ROPE PRIOR TO CUTTING?

A

THREE ON EACH SIDE OF THE CUT WITH THE DISTANCE BETWEEN THEM EQUAL TO THE DIAMETER OF THE WIRE.

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10
Q

WHAT ARE WIRE ROPE SEIZINGS MADE OF?

A

EIGHT TURNS OF ANNEALED IRON SEIZING WIRE.

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11
Q

WHAT ARE THREE MAIN CONSTRUCTIONS OF WIRE ROPE?

A

6X7 (STANDING RIGGING), 6X19 (STRONGEST FOR SIZE AND USED FOR GUYS, SLINGS, ETC.), 6X37 (FALLS, HOISTING).

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12
Q

HOW IS WIRE ROPE DIAMETER MEASURED?

A

WITH DIAL CALIPERS FROM PEAK TO PEAK.

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13
Q

WHAT IS THE MOST EFFICIENT FORM OF END CONNECTION FOR WIRE ROPE?

A

POURED SOCKET.

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14
Q

WHAT IS THE STRENGTH OF A POURED SOCKET?

A

100%.

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15
Q

WHAT IS THE STRENGTH OF A WEDGE FITTING?

A

70%.

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16
Q

WHAT ARE THE PARTS TO A WEDGE FITTING?

A

PLUG, SLEEVE AND SOCKET.

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17
Q

WHAT IS THE MOST IMPORTANT FACTOR IN INSTALLING A WEDGE FITTING?

A

MAKING SURE THE PLUG IS PROPERLY SEATED.

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18
Q

DOES THE WEDGE FITTING HAVE AN INSPECTION HOLE?

A

YES

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19
Q

HOW MUCH WIRE ROPE STRENGTH IS RETAINED USING A SWAGED FITTING?

A

95-100%.

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20
Q

WHAT CAN BE USED FOR A TEMPORARY EYE SPLICE ON WIRE ROPE?

A

WIRE ROPE CLIPS.

21
Q

WHO MANY WIRE ROPE CLIPS SHOULD BE USED FOR AN EYE SPLICE?

A

4 TIMES THE DIAMETER PLUS 1.

22
Q

WHAT PART OF A WIRE ROPE CLIP GOES OVER THE BITTER END?

A

THE U-BOLT.

23
Q

HOW FAR APART SHOULD WIRE ROPE CLIPS BE SPACED?

A

5 TIMES THE DIAMETER OF THE WIRE.

24
Q

WHAT IS THE FIBER CORE FOR?

A

LUBRICATION.

25
Q

WHAT IS PREFORMED WIRE ROPE?

A

ROPE WHOSE WIRES ARE SHAPED BEFORE LAYING UP.

26
Q

WHAT IS THE ADVANTAGE OF USING PREFORMED WIRE OVER NON-PREFORMED?

A

IT’S MORE FLEXIBLE AND TENDS NOT TO UNTWIST AS MUCH.

27
Q

WHAT IS WIRE ROPE MADE OF?

A

ANNEALED STEEL, TRACTION STEEL, OR PLOW STEEL.

28
Q

HOW MUCH WEAKER IS GALVANIZED WIRE ROPE?

A

10%

29
Q

WHAT IS GALVANIZED WIRE ROPE USED FOR?

A

STANDING RIGGING.

30
Q

WHICH WAY DOES WIRE ROPE TEND TO ROLL?

A

OPPOSITE OF ITS LAY.

31
Q

WHAT SHOULD WIRE ROPE NEVER BE STORED WITH?

A

ACID

32
Q

WHY IS WIRE ROPE LUBRICATED?

A

TO PREVENT CORROSION AND TO REDUCE WEAR.

33
Q

WHAT IS DONE PRIOR TO WIRE ROPE LUBRICATION?

A

THE ROPE IS CLEANED.

34
Q

HOW IS WIRE ROPE LUBRICANT APPLIED?

A

BY BRUSH OR TROUGH.

35
Q

WHAT TOOL CAN YOU USE TO AID IN APPLYING A WIRE ROPE SEIZING?

A

A SERVING BAR.

36
Q

WHAT IS THE EASIEST SPLICE TO USE ON WIRE ROPE?

A

LIVERPOOL SPLICE.

37
Q

WHAT TYPE OF SPLICE SHOULD BE USED ON A WIRE THAT WILL BE FREE TO ROTATE?

A

LOCK TUCK.

38
Q

HOW MUCH WIRE SHOULD BE UNLAID FOR A LIVERPOOL SPLICE?

A

DIAMETER OF WIRE TIMES 36.

39
Q

WHAT IS CUT OUT IN THE LIVERPOOL SPLICE?

A

THE CORE.

40
Q

WHEN IS A LOCK TUCK MADE ON A LIVERPOOL SPLICE?

A

AFTER THE THIRD ROUND OF TUCKS.

41
Q

IS THE CORE CUT OUT IN A LOCK TUCK SPLICE?

A

NO

42
Q

HOW MANY TUCKS ARE IN A LOCK TUCK SPLICE?

A

FIVE

43
Q

HOW IS A MARLINSPIKE INSERTED IN A LOCK TUCK?

A

AGAINST THE LAY.

44
Q

WHAT DIAMETER WIRE CAN A SWAGED FITTING BE INSTALLED ON?

A

1/4 TO 1 INCH.

45
Q

WHAT IS USED TO SECURE A SWAGED FITTING?

A

HYDRAULIC PRESS.

46
Q

WHO SHOULD INSTALL A SWAGED FITTING?

A

EXPERIENCED PERSONNEL ONLY.

47
Q

WHERE IS THE SIZE OF A WIRE ROPE CLIP STAMPED?

A

THE RODDLE.

48
Q

WHAT ARE THE ADVANTAGES OF USING THE IMPROVED WIRE ROPE CLIP?

A

IT CANT BE PUT ON WRONG AND ALLOWS FOR A FULL WRENCH SWING.

Bm2 Study Guide (8 decks)

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