Firearms and Tool Mark Unit December 2023

True or False? Common way of classifying mechanical device is by function.  The goal during the design process is to learn as much about the evolving product as early as possible in the design process because during the early phases changes are least expensive.

"Vehicle 1. Explain how each of these safety features is designed to protect you. a. anti-lock braking systems b. crumple zones c. side-impact beams d. seat belts 2. How many times more likely are people who don't wear seat belts to be injured than people who do wear seat belts? 3. Study Figure 13.10. What is the relationship between seat belt use and occupant fatalities? 4. Name three items you should regularly maintain on your vehicle to ensure your safety. CHECK Check your answers on pages 101 and 102 of the Appendix. Science 24 Module 4 • Section

A mirror and a quality light for leak testing may be used in lubrication repair. Select one: True False

True or False 1. It is acceptable to use a hoist to lift something that weighs more than the rating on the hoist when the load is lifted carefully. 2. Typically, combustible material accidents occur at higher temperatures while flammable material accidents occur at room temperature. 3. Water reactive chemicals include calcium carbide, cyclooctene, metal hydrides, and metals like sodium and potassium. 4. When driving material lifting equipment, workers should maintain at least a 5-foot clearance from overhead power lines. 5. Workers should use at least 2 straps placed equally from the center when lifting a long I-beam. ******************************************************************************************** Multiple Choice 1. Which of the following chemicals is not considered a liver toxin? A. Glacial acetic acid B. Carbon Tetrachloride C. Ethanol D. Trichloroethylene 2. Which of the following is a safety practice intended to protect workers from a lightning strike? A. Use a metal…

1. Choose the example of good vibration * Guitar Seismic Bullet Train Physiotherapy tools 2. Choose the example of bad vibration * Guitar Seismic Bullet Train Physiotherapy tools

A datum when used in manufacturing is primarily used for?     Define the functional relationship to another feature on a part, or they have a functional relationship in an assembly. They are the origin from which many Geometric tolerances are measured.     Datums are used to describe how one part must fit or align to a mating part.     A datum should be placed on the smallest surface of the part to be sure that the mating part would fit.     Datums assure that parts will always fit together.

5. What does MSDS stand for? 6. What information does MSDS contain? 7. When working in a confined what is a #1 rule?

The following methods are used to distinguish between ferrous and nonferrous metals and alloys (Choose all that apply) Magnetic test Density test Chemical test Scratching Visual observation Heat treatment

The test conducted by a scan tool can also be tested by some

Explain the terms 'Accuracy, 'Precision', and 'Bias' as they relate to diagnostic equipment (40 - 60 words)

Give explanation of this answer also