Canadian Entry To Practice (CETP) Practice Test

When setting the scale weight while filling cylinders, which three weights should be considered if the WC rating is measured in pounds?

1. WC x .8, TW, Weight or fill hose and connector

2. TW, WC x .42, Weight or fill hose and connector

3. TW x .42, WC, Weight or fill hose and connector

4. WC, TW x .8, Hose connector weight

The correct answer is: TW, WC x .42, Weight or fill hose and connector

When filling cylinders, it is essential to accurately set the scale weight to ensure proper capacity and safety during the process. The correct approach involves considering the tare weight (TW), which is the weight of the empty cylinder, and the working capacity (WC) of the cylinder, which indicates how much product it can safely hold. The reasoning behind the identification of the weights is that the working capacity provides a maximum limit, and it's crucial to factor in the tare weight to avoid overfilling the cylinder. The calculation of the tare weight along with a multiplication factor for the working capacity ensures that the filling process remains within safe operational limits. The selected answer combines the tare weight with a significant adjustment based on the working capacity, which is measured in pounds, using the multiplication factor to represent the correct fill. This not only ensures compliance with safety standards but also maintains the integrity of the cylinder during use. Other options present alternative combinations of weights, but do not provide the necessary safe scale setting that incorporates both tare weight and a correctly scaled working capacity in alignment with best practice filling protocols. The accurate approach is crucial for realistic cylinder fills to avoid risk factors such as overfilling or mishandling during transport and use.