WorksheetsBridon-Bekaert Ropes Group
Total questions: 10
Worksheet time: 5mins
What are the smallest elements in wire ropes?
Filament
Strand
Core
Wire
Which of below wire grade combination is allow when producing wire ropes according to BS EN 12385 – Part 4?
Rope Grade 1770 Mpa → Wire Grade 1570 Mpa + 1770 Mpa + 2160 Mpa
Rope Grade 1960 Mpa → Wire Grade 1770 Mpa + 1960 Mpa + 2160 Mpa
Rope Grade 1960 Mpa → Wire Grade 1570 Mpa + 1960 Mpa + 2160 Mpa
Rope Grade 1770 Mpa → Wire Grade 1960 Mpa + 1770 Mpa + 2160 Mpa
Define the strands construction of below:
25F Wires – 1/6+6F/12
19W Wires – 1/6/6+6
19S Wires – 1/9/9
36WS Wires – 1/7/7+7/14
What is the main purpose of the core in 6 & 8 strands rope?
To increase the ropes flexibility
To add strength to the rope
To support the outer strands
To hold lubricant within the rope
What is the “sZ” means in definition:
Right Hand Ordinary/Regular Lay
Right Hand Lang’s Lay
Left Hand Ordinary/Regular Lay
Left Hand Lang’s Lay
Wire ropes with 22mm in size, 1960 Mpa grade has Minimum Breaking Force of 338kN. How much it’s Minimum Breaking Load?
34.45 Metric Tones
3,315.78 Metric Tones
338.00 Metric Tones
None of the above
Which of the below wire ropes is NON-ROTATING ROPE?
6 & 8 Series
Dyform 6
Constructex
Dyform 34LR PI
Hookes Law – stress is proportional to strain until the limit of proportionality is reach, referring to?
Initial or Permanent Constructional Extension
Elastic Stretch
Permanent Extension
Equilibrium Extension
Which of the below statement is correct?
Torques: Being generates by applied force when both end free
Turn: Being generates by applied load when both end free to rotate
Turn: Being generates by applied torque when both end free to rotate
Torques: Being generates by applied force when both end fixed
Below are the three methods for testing the Minimum Breaking Load (MBL) as stated in BS EN 12385, EXCEPT?
Method 1 – Pull to break, exceeding the MBL in standard
Method 2 – Adding together all MBL of the individual wire
Method 3 – Adding together all MBL of the individual wires after it’s been removed from
the rope (post spin)
Method 4 – Reverse calculation based on actual breaking load on field application
