MCQOPTIONS
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MCQOPTIONS
| 1. |
In the presence of frictional resistance, the expression for piston effort is |
| A. | f(l) – f(i) |
| B. | f(l) + f(i) |
| C. | f(l) ± f(i) – r(f) |
| D. | f(l) – f(i) + r(f) |
| Answer» D. f(l) – f(i) + r(f) | |