On Bolsters/Bolster Assembly, the plunger is fastened to the _____ _____ which is then mounted to the center of the Bolster Assembly. {Ans: platen plate}Spacing of tower wall ties generally fall between __________ to __________ feet. {Ans: 10; 30}Per code, where the actuation of the safeties is by a governor, the safety shall be set at a maximum speed of _____ fpm {Ans: 75}To plumb the hole, a spider bob is attached to a length of piano wire suspended from as near as possible to the top of the _____ or from a fixed point on the drill rig. {Ans: Hoistway}Ensure comb segment teeth are set in the slots of the treadway deep enough so the teeth are always _____ the upper surface of the treads. {Ans: below}The _____ _____ short radius spiral is a type of short radius spiral. {Ans: double 90}