Machine Guarding Requirements Flashcards

Which of the following is NOT one of OSHA's recognized safeguarding methods?

Answer: Verbal warnings

Verbal warnings are not an accepted safeguarding method; guards, devices, and location are.

A two-hand control device provides protection by requiring what from the operator?

Answer: Both hands on controls away from the danger zone during the cycle

Two-hand controls keep both of the operator's hands occupied and away from the point of operation.

What is the minimum requirement for guarding a fan when the blades are less than 7 feet above the floor?

Answer: Openings no more than 1/2 inch

Fan guards within 7 feet of the floor must have openings of no more than 1/2 inch.

An interlocked guard works by doing what when the guard is opened?

Answer: Automatically shutting off machine power

Interlocked guards cut power to the machine when opened, preventing operation with the guard removed.

Which of these is an example of guarding by location?

Answer: Placing a hazard 8 feet above the walking surface out of reach

Guarding by location uses distance or height to keep the hazard beyond a person's reach.

A pullback (pull-out) device is used to protect the operator by doing what?

Answer: Physically withdrawing the operator's hands from the danger zone as the machine cycles

Pullback devices attach to the operator's hands and pull them clear during the machine cycle.

What should be done with a machine guard that is found bent, cracked, or missing fasteners?

Answer: Tag the machine out of service until repaired

A damaged guard no longer provides protection, so the machine must be taken out of service until repaired.