Correct answer
you should select the gear ratio that allows you to descend safely.
The vertical sign P-16A indicates danger due to the proximity of a section of road with a steep downhill gradient, with the number inside the sign showing the percentage of the gradient. In this situation we should select the most suitable gear ratio to allow us to descend the gradient as safely as possible.
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it doesn't matter which gear ratio is selected, what matters is the percentage of the gradient.
you should select a gear ratio that allows you to ascend safely.
you should select the gear ratio that allows you to descend safely.
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Sign P-16A: a steep downhill gradient
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