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The step by step movement of carriage is done by

ADog block

BMain spring

CSegment lever

DCarriage rack

Answer:

A. Dog block

Read Explanation:

  • The step by step movement of carriage is done by dog block
  • Rigid dog ,Loose dog are the two types of dog blocks

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It is very essential that every official letter should have a complementary clause. Select the suitable complementary clause from the following options

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