Quiz-I Wire ropes used in Mines and their installation

In the selection of wire rope for hoisting purposes, which strength is of prime importance?

• Tensile strength

• Compressive strength

• Shear strength

• Torsion strength

• None of Above

Minimum number of dead Turns of the rope on the drum in winder

• 2-3 turns

• 1 turn

• 1-2 turns

• 3-4 turns

• None of Above

Recapping of winding rope is done to

• Increase the flexural strength of the rope

• Increase the flexibility of the rope

• Prevent the rope from excessive rusting

• Remove a portion of the rope subjected to deterioration

• None of Above

Pulley system is a combination of several ___________ pulleys.

• movable only

• movable and fixed

• fixed only

• chain only

• None of Above

Which lifting device used to raise the equipment for small height while shifting or temporary maintenance or foundation work?

• Pulley

• Hoist

• Crane

• Jack

• None of Above

If the length of a cable is increased, its capacitance_______________

• decreases

• remain same

• increases

• None of Above

The wire rope is subjected to__________________

• Tensile Stress

• Both bending and tensile stress

• Bending Stress

• None of Above

Wire rope is use for transmit the _____________ over long distance from one pulley to another.

• power

• frequency

• temperature

• None of Above

In 6x19 stranded rope, 19 stands for________________

• wires

• strands

• lay

• locked coil

• None of Above

Which one is the Non-Stranded type of the rope?

• Standing rope

• locked coil rope

• running rope

• None of Above