The space between detaching hook, measured from the centre of the hole for attaching it to the rope shackle and the detaching bell plate when the cage or other means of conveyance is at its normal position at the top of the shaft shall not less than . . . . . . . . where geared engine is used.

A. 1.2 m

B. 1.5 m

C. 3.6 m

D. 1.8 m

Answer: Option D