FAQ >> Question About Tower Crane - 1

Question About Tower Crane - 1

How often should you check your tower locking nuts and pins? A. Daily B. Weekly C. Monthly When climbing a ladder what safety position should you hold? A. Centre rung of ladder B. Outside rail of ladder C. Does not matter where you hold on to If your crane is fitted with a lift, how often should it be checked and tested by a competent person? A. Six months B. Weekly C. Yearly Tower cranes must be load tested in accordance with BS7121. How often should this be done? A. 6 years B. 4 yearly, after each erection of crane or after any alterations or repairs C. Yearly If your crane is fitted with a slip ring. This will prevent? A. The crane slipping over B. Rotating the crane more than three times C. The main electrical cable snapping Limit switches are fitted to all cranes what is the minimum standard of the switches? A. IP60 B. IP65 C. IP67 How often should limit switches be checked? A. Weekly B. Monthly C. Six monthly How often should you limit switch be checked in sub zero temperatures? A. Weekly B. Daily C. Twice a week Is the setting of the limit switch allowed to be changed by the operator? A. No never B. Only when the load is to heavy C. When told to do so by site agent How would you check that unauthorised personnel have not re calibrated a limit switch? A. Ask the banksman B. Known weight to a known location C. Use test button if fitted

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