Final answer:
The statement is true; a guard must always be in place when using a hand-held Portable Grinder to prevent injury from flying debris or accidental contact with the spinning wheel.
Step-by-step explanation:
When using a hand-held Portable Grinder with the hard wheel in operation, the guard must be in place. The correct answer is Option 1: True. The guard on a portable grinder is a critical safety feature designed to protect the user from flying debris and accidental contact with the spinning wheel. Safety guards are mandatory equipment on hand-held grinders and should never be removed. It is essential to ensure that the guard is securely in place and adjusted to protect the user while allowing for the work to be done before operating the grinder.