WHICH_TYPE_OF_ROPE_DRUM_IS_PREFERRED??$

1.	WHICH_TYPE_OF_ROPE_DRUM_IS_PREFERRED??$
A.	Drums with helical grooves
B.	Plain cylindrical drums
C.	Both are equally preferred
D.	None of the listed
Answer» B. Plain cylindrical drums

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If nominal diameter of the rope is 20mm, then pitch of the groove is around?
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An elevator is assembled to raise equipment to a height of 22m. It is estimated that maximum weight of the material to be raised is 4.9kN. It is observed acceleration in such cases is 1.2m/s².10mm diameter wire ropes with fibre core are used. The tensile designation of the wire is 1500.Number of rope wires is assumed to be 2. Number of rope wires is assumed to be 2. Calculate the total load on wire rope neglecting the bending load if weight of 50m wire is 18kg.
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An elevator is assembled to raise equipment to a height of 22m. It is estimated that maximum weight of the material to be raised is 4.9kN. It is observed acceleration in such cases is 1.2m/s².10mm diameter wire ropes with fibre core are used. The tensile designation of the wire is 1500.Number of rope wires is assumed to be 2. Calculate the weight of wire if weight of 50m wire is 18kg.
An elevator is assembled to raise equipment to a height of 22m. It is estimated that maximum weight of the material to be raised is 4.9kN. It is observed acceleration in such cases is 1.2m/s².10mm diameter wire ropes with fibre core are used. The tensile designation of the wire is 1500. Number of wire ropes can be taken 2. Calculate the weight of material raised by each load.
WHICH_TYPE_OF_ROPE_DRUM_IS_PREFERRED??$
If_nominal_diameter_of_the_rope_is_20mm,_then_pitch_of_the_groove_is_around?$
Rope operating over steel sheaves wear slowly than those used in conjunction with cast iron sheaves?

WHICH_TYPE_OF_ROPE_DRUM_IS_PREFERRED??$

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