(a) What is dragline ? Explain the factors affecting the output of a…

Previous year question for Construction Planning and Management.

Question

(a) What is dragline ? Explain the factors affecting the output of a shovel.

(b) Estimate the output of a bulldozer for the following operating conditions :

(i) Material = sandy soil

(ii) swell = 25%

(iii) Haul Distance = 45 m

(iv) Mould board size = 3.0 m long and 1.0 m high

(v) Rated mould board capacity = 3 cubic metre loose volume

(vi) Operating factor = 50 min/hr

(vii) Probable round trip time,

Pushing 45 m @ 2.5 kmph = 1.08 min

Returning 45 m @ 5.5 kmph = 0.49 min

Loading, shifting gear = 0.30 min

Total = 1.87 min