OSHA - Safety Certificate Machine Guarding Requirements Questions and Answers Flashcards

What must an employer do if a fixed guard cannot be used to protect workers from a machine's point of operation?

Answer: Use an alternative safeguarding device such as a light curtain or pressure-sensitive mat

When fixed guards are not feasible, OSHA requires employers to use alternative safeguarding devices like light curtains, pressure mats, or other presence-sensing technology.

Which of the following machine components typically requires guarding under OSHA standards?

Answer: Rotating shafts, gears, and pulleys

OSHA requires guarding on rotating shafts, gears, pulleys, and other moving power transmission components that could cause injury.

What is the maximum permissible opening size for a guard located less than 4 inches from the danger zone, per OSHA Table O-10?

Answer: 1/2 inch

OSHA Table O-10 specifies that when a guard opening is less than 4 inches from the hazard, the maximum opening size is 1/2 inch to prevent fingers from reaching the danger zone.

An interlocked guard provides protection by doing which of the following?

Answer: Automatically shutting off the machine or preventing startup when the guard is open or removed

Interlocked guards are connected to the machine's control system so that the machine cannot operate unless the guard is properly closed and in place.

Which of the following is an example of a hazard that machine guarding is designed to protect against?

Answer: Flying chips and sparks from the point of operation

Machine guarding protects workers from hazards at the point of operation, including flying chips, sparks, and debris generated during the machining process.

Who is responsible for ensuring that machine guards are properly maintained and functional under OSHA regulations?

Answer: The employer

Under OSHA regulations, the employer bears the responsibility for ensuring all machine guards are properly installed, maintained, and in working condition.