Proper Engine Break-In Procedure Is Being Discussed

question 31

Multiple Choice

Proper engine break-in procedure is being discussed. Technician A says the engine should run at idle speed for at least two hours. Technician B says the engine should be accelerated at full throttle from 30 mph to 50 mph (80 to 133 km/h) . Who is correct?

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

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Definitions:

Fixed Cost

Costs that do not vary with the level of output, remaining constant even if production is zero.

Variable Costs

Costs that change in proportion to the level of production or business activity, such as materials and labor directly involved in manufacturing.

Lawn-mowing

The act of cutting the grass of a lawn to maintain its appearance and health.

Perfectly Competitive

A market structure where there are many buyers and sellers, all of whom have negligible impact on the market price.