OSHA - Safety Certificate Machine Guarding Requirements Questions and Answers

Question 1

An operator is working at a bench grinder. To comply with OSHA 29 CFR 1910.215, what are the maximum allowable openings for the work rest and the adjustable tongue guard?

Accepted Answer

1/8-inch for the work rest, and 1/4-inch for the tongue guard.

Answer

1/4-inch for the work rest, and 1/2-inch for the tongue guard.

Answer

1/2-inch for the work rest, and 1/4-inch for the tongue guard.

Answer

1/4-inch for the work rest, and 1/8-inch for the tongue guard.

Question 2

Which of the following is a fundamental requirement for all machine guards according to OSHA's general requirements at 29 CFR 1910.212?

Accepted Answer

The guard must be affixed to the machine and not create a new hazard.

Answer

The guard must be painted yellow to indicate a hazard.

Answer

The guard must be removable without the use of tools for easy access.

Answer

The guard must be equipped with an audible alarm that sounds during operation.

Question 3

A mechanical power-transmission belt is located with its lower part 6 feet above the work platform. According to OSHA 29 CFR 1910.219, what action is required?

Accepted Answer

The belt must be guarded on its sides and bottom.

Answer

No guard is required as it is above head height.

Answer

Only a standard railing is required to keep workers away from the area.

Answer

The belt only needs to be guarded if it is wider than 12 inches.

Question 4

According to OSHA 29 CFR 1910.212(a)(3), the 'point of operation' on a machine is defined as:

Accepted Answer

The area on a machine where work is actually performed upon the material.

Answer

The area where the machine's operating controls are located.

Answer

Any moving part of the machine, including belts and pulleys.

Answer

The designated floor space around the machine reserved for the operator.

Question 5

A metal fabrication shop uses a large mechanical shear. To protect the operator, a guard is installed that automatically shuts down the machine's motion if the guard is opened or removed. This type of safeguard is best described as which of the following?

Accepted Answer

An interlocked guard

Answer

A self-adjusting guard

Answer

A fixed guard

Answer

A presence-sensing device

Question 6

Which of the following machine parts, functions, or processes must be safeguarded according to the general requirements of OSHA 1910.212?

Accepted Answer

Point of operation, ingoing nip points, and rotating parts.

Answer

Only the primary on/off switch.

Answer

Only areas where routine maintenance is performed.

Answer

Only machines less than 10 years old.