Question

To control the movement ------ silencer is provided

1. Rigid dog
2. Loose dog
3. Pinion wheel
4. Escapement wheel

• A. All
• B. 2 only
• C. 3, 4
• D. 4 only

Answer 1

Answer:

B. 2 only

• Escapement wheel is responsible for step-by-step movement of the carriage.
• Loose dog and rigid dog act on the Escapement wheel.
• Loose dog will normally hold the tooth of the escapement wheel and arrest the  movement or the carriage.
• To control the movement Loose dog silencer is provided