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Technology
Technology(Mechanisms;Cam and follower)
| Question | Answer |
|---|---|
| What is a cam? | A mechanism used to change rotary motion into liner motion |
| What is a follower? | A component designed to move up and down as it follows the edge of the cam |
| Where can cams be used? | A pump |
| What is a ratchet and pawl? | Ratchets are used to allow rotation in one direction only. The direction of the motion can be changed by rotating the pawl in a spanner |
| What is a crank and slider? | A mechanism that allows rotary motion to be turned into reciprocating motion |
| Where can a crank and slider be seen? | The piston of an engine |
| Name the cam profiles | Pear,heart,circular and drop |
| How do you calculate the gear ratio? | Driver over driven, times RPM |