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Register control on a printing press adjusts

  • A.the angular position of one unit relative to another
  • B.the absolute speed of the whole press together
  • C.the tension in the web between successive units only
  • D.the temperature of the drying section of the press

Answer: A

Correct answer: the angular position of one unit relative to another

Each colour is printed by a separate unit, and the impressions must coincide on the web to a fraction of a millimetre. Register control makes small continuous adjustments to the angular position of each unit relative to the others, correcting for the stretch and slip of the paper as it runs.

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