Technician a Checks Ball Bearings by Spin Testing with an Air

question 52

Multiple Choice

Technician A checks ball bearings by spin testing with an air blower. Technician B cleans and lubricates the bearings then spins them by hand while checking for roughness or vibration. Who is correct?

• A)A only
• B)B only
• C)both A and B
• D)Nether A nor B

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Definitions:

Sister Chromatid

One of two identical copies of a chromosome that are connected by a common centromere.

Nucleosome

A structural unit of a eukaryotic chromosome, consisting of a length of DNA coiled around a core of histone proteins.

Scaffolding Proteins

Proteins that assist in the assembly of other proteins or protein complexes, often important for cellular structure and signaling pathways.

Centrioles

Cylindrical cell structures involved in the process of cell division and in the organization of microtubules in the cell.