Q. Reverted gear train is also called as planetary gear train.

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Q. Rack and pinion gear can be termed as linear actuator.

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Q. Who invented Ratchet wrench?

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Q. What is the purpose of pawl, when it is used against a ratchet which is attached to a shaft?

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Q. What is the minimum number of tooth, a ratchet should have?

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Q. Which ratchets are often called as roller drive ratchets?

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Q. The tooth of a ratchet is symmetrical.

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Q. The movement of the ratchet can be locked by pawl if it moves in opposite direction.

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Q. What is the maximum distance, a pawl can travel during the backward motion of a ratchet?

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Q. Who invented Ratchet wheel, which was further used in power loom?

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Q. What is the purpose of pawl, when it is used against a spur gear which is attached to a shaft?

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Q. What does “12-point” indicates when the term 12 point reversible ratchet is used?

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Q. Ratchet screw driver can apply turning force in one direction only.

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Q. Backlash of a ratchet is the maximum distance covered by the pawl when the ratchet moves in opposite direction.

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Q. It is not necessary to have teeth on the surface of the ratchet.

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Q. Which ratchets are often called as reversible ratchets?

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Q. What is the difference between ratchet and spur gear?

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Q. Which among the following operations does not use belt drives?

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Q. Which among the following is a type of belt drive?

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Q. The angle of contact is greater for cross belt drives.

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