Guarding is removed from a table saw “for speed,” and workers are told only to be careful. What control principle does this violate?
Select an answer to reveal the explanation.
Short Explanation
“Be careful” is not a machine guard. Yanking the shield for speed trades an engineered control for a wish. Put the guard back—carefulness is a nice speech, not a substitute for hardware that keeps fingers out of the blade.
Full Explanation
Engineered controls such as machine guards sit above administrative instructions in the hierarchy because they reduce reliance on perfect human behavior. Removing guards to gain speed increases residual risk and weakens the control design. Production pressure does not justify replacing engineered protection with verbal caution alone.