Poka-Yoke: Error Proofing

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Questions and Answers

Which scenario exemplifies a Poka-Yoke (error-proofing) mechanism?

A software program that automatically saves a user's work every five minutes.
A car requiring the driver to wear a seatbelt before the engine can start. (correct)
An employee attending a workshop on how to reduce errors in data entry.
A supervisor reviewing a checklist of completed tasks at the end of a shift.

In the context of error proofing, what is the primary difference between prediction and detection?

Prediction relies on statistical analysis, while detection uses physical barriers.
Prediction focuses on eliminating errors before they occur, while detection mitigates the impact after they've happened. (correct)
Prediction is more costly to implement than detection.
Prediction is used in manufacturing, while detection is used in service industries.

Which of the following is NOT a typical action taken when an error is detected by a Poka-Yoke device?

The process is automatically shut down to prevent further errors.
A warning signal is sent to alert the operator.
The defective product is sent to the customer with a discount. (correct)
A control mechanism prevents the process from continuing.

A hospital implements a new system where different medical gases (e.g., oxygen, nitrous oxide) have uniquely shaped connectors that only fit their corresponding outlets. This is an example of:

A fail-safe mechanism. (D) Signup and view all the answers

In a manufacturing process, a machine is designed to stop automatically if the weight of a product falls outside a specified range. This is an example of error proofing using:

Checkweighers. (A) Signup and view all the answers

A 'pick to light' system is implemented in a warehouse. What type of error is it designed to primarily prevent?

Picking items from the incorrect location. (C) Signup and view all the answers

Which of the following scenarios demonstrates error proofing through a 'limit switch'?

A safety door on a machine prevents operation when open. (B) Signup and view all the answers

How does multi-factor authentication (MFA) serve as an error-proofing technique?

It reduces the risk of unauthorized access due to compromised credentials. (A) Signup and view all the answers

In the context of service industries, which of the following exemplifies error proofing?

A call center implementing scripts to ensure consistent information delivery. (C) Signup and view all the answers

A construction company mandates the use of specific color-coded hard hats for different roles (e.g., supervisors, electricians, general workers) on a job site. How does this enhance error proofing?

It facilitates quick identification of personnel and their designated responsibilities, minimizing confusion and errors. (A) Signup and view all the answers

Flashcards

Poka-Yoke

A device/process that prevents errors or stops defects from reaching the user through prediction or detection, potentially shutting down the process, preventing advancement, or sending a warning.

Pick to Light

Guiding operators with light to pick products from specific bins; light curtain detects correct bin selection.

Lockout Tagout

Safety procedure using locks and tags to ensure dangerous machines are properly shut off for maintenance.