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Number of Bevel gears in the main shaft is:

ATwo

BThree

CFour

DFive

Answer:

A. Two

Read Explanation:

SPOOL SHAFTS

  •  Number of spool shafts in a typewriter -2
  • The gear fixed at the lower end of the spool shaft  is called : Bevel gear
  • Ribbon spool rotates with the help of spool shaft and Mainshaft
  • Rotation movement transmit to the ribbon from main shaft through Bevel gears
  • Number of  Bevel gears in the main shaft  : Two (Right and Left)
  • Bevel gears on the ribbon spool shaft causes lengthwise movement of ribbon .

Main shaft

  • Main shaft is a rod which  consists of Bevel gears connecting to ribbon spool shafts
  • Main shaft is controlled by : Ribbon Reverse Key
  • Main shaft is also known as :  Long gear shaft

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