Carriage tension can also be calledAMain spring tensionBPinion wheel tensionCEscapement wheel tensionDRatchet wheel tensionAnswer: A. Main spring tension Read Explanation: Carriage is an important part in Typewriter, which helps to receive the impression of the typed matter.There are various parts in the carriage which help the operator to produce impression. The Carriage can move in both the directions.Carriage tension can also be called Main spring tensionCarriage moves towards left whenever the Space Bar, Character Key, Tabulator Bar or Carriage Release lever is used. Read more in App