Technician a Says Long Hair Should Be Put Up When

question 8

Multiple Choice

Technician A says long hair should be put up when working in a shop. Technician B says it is good practice to remove rings and jewelry before working in a shop. Who is correct?

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

---

Definitions:

Evolution

The method through which various types of life are believed to have evolved and branched out from ancestral forms throughout Earth's history.

Radioisotopes

Unstable isotopes that spontaneously emit radiation; also called radioactive isotopes.

Half-Life

The time required for half the atoms of a radioactive substance to decay or for a drug or other substance to lose half its pharmacologic, physiologic, or radiologic activity.

Potassium-40

A radioactive isotope of potassium used in dating geological materials, as it decays into argon-40 over a known period of time.