Quality Answers
1) According to ASME, when rails are used for the crane support, the rails splices mus:
- ANSWER-A) be smooth
2) What is the task of high-tensile bolt connections between tower sections? -
ANSWER-A) To avoid fail.
3) According to the Tower Crane Reference Manual, how often should the hoist wire
rope be lubricated? - ANSWER-A) Every 200 hours of operation.
4) According to the Tower Crane Reference Manual, which operation Does Not risk the
stability of the crane? - ANSWER-A) Decrease the load after have lifted it.
5) Before and after the climbing of a tower crane, how do you plumb the tower? -
ANSWER-A) when the tower is balanced.
6) According to sheet C, where does the climbing unit have to be located with 12 tower
sections added and the guided section removed? - ANSWER-A) On the undercarriage.
7) How much does a cubic foot of steel weights? - ANSWER-A) 490 LBS.
8) What's the purpose of the twist compensator? - ANSWER-A) To avoid twisted hook
block.
9) According to OSHA, when erecting or dismantling self erecting tower cranes,