Tech a Says That Most Metric Fasteners Can Be Identified

question 28

Multiple Choice

Tech A says that most metric fasteners can be identified by the grade number cast into the head of the bolt. Tech B says that standard bolts can generally be identified by hash marks cast into the head of the bolt indicating the bolt's grade. Who is correct?

• A) Tech A
• B) Tech B
• C) Both A and B
• D) Neither A nor B

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Definitions:

Renewable Solar Energy

Energy generated from the sun's rays, which is sustainable and inexhaustible, used to produce electricity or heating without emitting greenhouse gases.

High Heat Content

A characteristic of materials or substances with a significant ability to store thermal energy, often important in fuel and energy contexts.

Fuel

Substances used to generate energy through combustion or chemical reactions, such as gasoline, coal, or nuclear material.

Land Degradation

The decline in the quality of land due to human activities, environmental change, and other factors, leading to decreased agricultural productivity and the loss of land's ability to regenerate.