OSHA Machine Guarding Requirements 2

Question 1

Under OSHA 1910.212, at what point on a machine must a guard prevent the operator from having any part of the body in the danger zone?

Accepted Answer

At the point of operation

Answer

OSHA requires guarding at the point of operation where work is actually performed on the material.

Question 2

A worker asks whether a guard can be removed briefly to clear a jam while the machine is running. What is the correct action?

Accepted Answer

Shut down and lock out the machine first

Answer

Machines must be shut down and locked out before removing guards or clearing jams.

Question 3

Which type of hazard is created by gears, rollers, or belt-and-pulley combinations moving toward each other?

Accepted Answer

In-running nip point

Answer

Rotating parts moving toward each other create in-running nip points that can catch clothing or body parts.

Question 4

What is the primary purpose of an anti-restart (magnetic) motor control after a power loss?

Accepted Answer

To prevent the machine from restarting automatically when power returns

Answer

Anti-restart controls prevent unexpected startup that could injure a worker when power is restored.

Question 5

A guard on a table saw is designed so material can pass through but a finger cannot reach the blade. This illustrates which guarding principle?

Accepted Answer

Maximum opening safe distance

Answer

Guard openings must be sized so a finger or hand cannot reach the danger zone.

OSHA Safety Certificate Practice Test