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For cycle-time calculations the unit lists suggested cableway speeds. The carriage travel speed is taken as approximately:
Answer & Solution
Correct answer: D.
1. The unit lists four speeds used for cycle-time estimation.
2. Load hoisting is taken as 76 m/min and load lowering as 91 m/min.
3. Carriage travel along the suspension cable is taken as 305 m/min.
4. Tail mast travel for radial cableways with moving tail mast is taken as 8 m/min.
5. The hoist and lower values are slower because they handle the load directly.
_Source: IGNOU Concrete Technology, Unit 7 "Concreting Equipment" (Mixers, Cableways, Batchers, Buckets, Pre/Post Cooling)._
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