Exam 10: Mechanical Hazards and Machine Safeguarding

The concept of risk assessment is the process of quantifying the level of risk associated with the operation of a given machine.

Permanent electrical safety devices can improve the effectiveness of lockout/tagout programs.

An optical device that shuts down the machine any time the light field is broken is which of the following?

Guards are not effective when used at the point of operation.

The best guard used in a robot's work envelope is which of the following?

The National Safety Council defines safeguarding as minimizing the risk of accidents.

Which type of guard shuts down the machine when the guard is not securely in place?

Concerns about mechanical hazards have only become important in recent years.

The best robot safeguard is roping off the work area.

Three types of point of operation guards are fixed, interlocked, and adjustable.

In an industrial setting, people interact with machines that are designed to drill, cut, stamp, punch, and shape such materials as metal, plastics, and elastomers.

The most common mechanical injuries are cutting and tearing, shearing, crushing, breaking, straining, spraining, and puncturing.

Fixed guards provide a temporary barrier between workers and the point of operation.

When a body part comes in contact with a sharp edge, which of the following occurs?

A Permanent Electrical Safety Device (PESD) becomes a real safety device only after it is installed as part of a Lockout/Tagout procedure. Until this is done it is nothing but another electrical component.

Machine guards must meet only one overriding requirement: prevention of contact with moving parts.

When a machine is being operated without the safeguard, which of the following actions should be taken?