Construction Planning and Management
The part of a derrick crane include
(i) Mast
(ii) Boom
(iii) Bull wheel
(iv) Jackwhich of these statements are correct?

(i), (ii) and (iv) are correct
(ii), (iii) and (iv) are correct
(i), (ii) and (iii) are correct
(i), (iii) and (iv) are correct

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