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An offset slider-crank mechanism is shown in the figure at an instant. Conventionally, the Quick Return Ratio (QRR) is considered to be greater than one. The value of QRR is ______.
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- 255
- 1.255
- 5.255
- 1255
Correct Option: B
AB = stroke length
AO = 40 – 20 = 20
BO = 40 + 20 = 60
∠ AOB = ∠ BOC – ∠ AOC
= 80.41 – 60 = 20.41
| QRR = | = | = 1.255. | ||
| 180 − φ | 180 − 20.41 |
