Elevator 245-250
What is meant by suspension regarding elevator equipment? - ANS- A means of
connecting the cars and counterweights with the hoisting machines.
What are the means of suspension that are used in the elevator industry? . - ANS- Ropes
or belts are the most common materials used for suspension
What materials are used in the construction of governor ropes and car ropes? - ANS-
Iron, monel, bronze, fiber or steel
What is meant by the term lang lay? - ANS- When the wires of the strand form an angle
with the axis of the rope
What is meant by rope lay? - ANS- The direction that the strands are coiled around the
core material
What is the most common finish on ropes? - ANS- Bright or uncoated
What are the components of a wire rope? - ANS- Wires, that form the strand, Strands
that lay around the core, and core material
What materials is used in the construction of belts for suspension? - ANS- Stranded
aramid fiber, carbon fiber and non-circular elastomeric coated steel belts NECSBS
What is the core of a rope made from? - ANS- Either fiber or wire
When would iron grade steel be most likely be used? - ANS- When working on older
equipment
How many different types of steel are used in the construction of ropes? - ANS- 6
different types of steels can be used Traction Steel (TS); Plow Steel (PS), mild plow steel
(MPS)Improved plow steel (IPS, Extra Improved Plow Steel (EIPS) Extra Extra Improved
Plow Steel (EEIPS)
What is special about Warrington ropes? - ANS- The inside wires of the strands are the
same diameter. While the wire that make up the outer strand edge alternate between the
sizes used
What are the benefits of using lang lay ropes? - ANS- They have a greater resistance to
abrasions and greater flexibility that regular ropes
, What is significant about Seale ropes? - ANS- The strand is made up of 1 large wire
surrounded by 9 small wires which are surrounded by 9 large wires
What are disadvantages of using lang lay ropes? - ANS- Harder to handle; more likely to
untwist, kink easier and easier to crushing
What is a drawback to using Warrington ropes? - ANS- They aren't wearing resistant
What do 6 x 19 regarding ropes mean? - ANS- The first number represents the number of
strands that make up the rope. The second number is the number of wires per strand
What is a benefit of using preformed ropes? - ANS- Broken wires are less appt to stick
out from the surface
What are preformed ropes? - ANS- Ropes that have the strands formed to helical shape
during manufacturing process to make the final product.
When should a tiller rope be used? - ANS- To manually change the direction in old
controllers.
What is meant by pre stretched ropes? - ANS- That the ropes are stretched during the
manufacturing process
Why are ropes pre stretched? - ANS- To reduce the amount of construction, stretch
(Stretching that occurs after the ropes are installed
When should tiller ropes be used for hoisting? - ANS- Never
What must be installed on shackles after they are finally in place? - ANS- An anti-rotation
device
How much of the dead end of the rope should be left after feeding the rope into the
shackle? - ANS- At least 6-9 inches above the socket
Who many retaining clips should be installed above the shackle after the rope is
installed? - ANS- At least 2 the 1st should be placed 4 times the diameter of the rope the
2nd 8 times the diameter of the rope
What is the rate of construction stretch for pre-stretched ropes? 50% less than none
pre-stretched ropes - ANS-
Which end of a wedge shackle should the live end of a rope be placed? - ANS- Towards
the rod end of the shackle
What is meant by suspension regarding elevator equipment? - ANS- A means of
connecting the cars and counterweights with the hoisting machines.
What are the means of suspension that are used in the elevator industry? . - ANS- Ropes
or belts are the most common materials used for suspension
What materials are used in the construction of governor ropes and car ropes? - ANS-
Iron, monel, bronze, fiber or steel
What is meant by the term lang lay? - ANS- When the wires of the strand form an angle
with the axis of the rope
What is meant by rope lay? - ANS- The direction that the strands are coiled around the
core material
What is the most common finish on ropes? - ANS- Bright or uncoated
What are the components of a wire rope? - ANS- Wires, that form the strand, Strands
that lay around the core, and core material
What materials is used in the construction of belts for suspension? - ANS- Stranded
aramid fiber, carbon fiber and non-circular elastomeric coated steel belts NECSBS
What is the core of a rope made from? - ANS- Either fiber or wire
When would iron grade steel be most likely be used? - ANS- When working on older
equipment
How many different types of steel are used in the construction of ropes? - ANS- 6
different types of steels can be used Traction Steel (TS); Plow Steel (PS), mild plow steel
(MPS)Improved plow steel (IPS, Extra Improved Plow Steel (EIPS) Extra Extra Improved
Plow Steel (EEIPS)
What is special about Warrington ropes? - ANS- The inside wires of the strands are the
same diameter. While the wire that make up the outer strand edge alternate between the
sizes used
What are the benefits of using lang lay ropes? - ANS- They have a greater resistance to
abrasions and greater flexibility that regular ropes
, What is significant about Seale ropes? - ANS- The strand is made up of 1 large wire
surrounded by 9 small wires which are surrounded by 9 large wires
What are disadvantages of using lang lay ropes? - ANS- Harder to handle; more likely to
untwist, kink easier and easier to crushing
What is a drawback to using Warrington ropes? - ANS- They aren't wearing resistant
What do 6 x 19 regarding ropes mean? - ANS- The first number represents the number of
strands that make up the rope. The second number is the number of wires per strand
What is a benefit of using preformed ropes? - ANS- Broken wires are less appt to stick
out from the surface
What are preformed ropes? - ANS- Ropes that have the strands formed to helical shape
during manufacturing process to make the final product.
When should a tiller rope be used? - ANS- To manually change the direction in old
controllers.
What is meant by pre stretched ropes? - ANS- That the ropes are stretched during the
manufacturing process
Why are ropes pre stretched? - ANS- To reduce the amount of construction, stretch
(Stretching that occurs after the ropes are installed
When should tiller ropes be used for hoisting? - ANS- Never
What must be installed on shackles after they are finally in place? - ANS- An anti-rotation
device
How much of the dead end of the rope should be left after feeding the rope into the
shackle? - ANS- At least 6-9 inches above the socket
Who many retaining clips should be installed above the shackle after the rope is
installed? - ANS- At least 2 the 1st should be placed 4 times the diameter of the rope the
2nd 8 times the diameter of the rope
What is the rate of construction stretch for pre-stretched ropes? 50% less than none
pre-stretched ropes - ANS-
Which end of a wedge shackle should the live end of a rope be placed? - ANS- Towards
the rod end of the shackle
