Final answer:
In Physics, the withdrawal rate of gas from a cylinder should not exceed a certain proportion of the total cylinder capacity per hour. To determine this, we need to find the maximum withdrawal rate. The withdrawal rate should not exceed one-fourth of the total cylinder capacity per hour.
Step-by-step explanation:
In the given question, the withdrawal rate of gas from a cylinder should not exceed a certain proportion of the total cylinder capacity per hour. To determine this, we need to find the maximum withdrawal rate. Cut the radius of the cylinder in half and the volume decreases to one-fourth the original volume (since volume is a function of the radius squared). Therefore, the withdrawal rate should not exceed one-fourth (option C) of the total cylinder capacity per hour.