[amp_mcq option1=”3 kmph” option2=”4 kmph” option3=”5 kmph” option4=”6 kmph” correct=”option1″]
The correct answer is: A. 3 kmph.
The maximum impact speed when shunting a single roller bearing fitted stock must be 3 kmph. This is to ensure that the bearings are not damaged. If the impact speed is too high, the bearings can be damaged and may need to be replaced.
Option B is incorrect because it is too high. Option C is incorrect because it is too low. Option D is incorrect because it is not a valid option.