Technician a Says the Valve Seats Must Be Ground Before

question 39

Multiple Choice

Technician A says the valve seats must be ground before the valve guides are serviced. Technician B says before grinding the valve seats, they should be checked for cracks. Who is correct?

• A) A only
• B) B only
• C) both A and B
• D) neither A nor B

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Definitions:

Confounding

Confounding occurs when an outside influence affects both the dependent and independent variables in an experiment, potentially leading to false assumptions about the relationship between them.

Temporal Precedence

Part of causal inference; the cause occurs before the effect.

Workplace Lighting

The arrangement and type of lighting in a work environment, which can affect productivity, comfort, and safety of workers.

Employee Productivity

A measure of the efficiency of a worker or a group of workers in producing goods or services.