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ahmedkamal ahmedkamal
wrote...
Posts: 764
Rep: 0 0
6 years ago
Which type of jack is operated by using the jack to tighten and support a shoring/stabilizing system?
 
  A. Screw jack
  B. Hydraulic jack
  C. Trench screw jack
  D. Ratchet-lever jack
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wrote...
6 years ago
C
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