After Discovering Coolant Is Leaking into the Engine Oil, Technician

question 12

Multiple Choice

After discovering coolant is leaking into the engine oil, Technician A says the leak will rapidly accelerate cylinder wall wear. Technician B says the coolant leak is likely casue more damage to engine bearings first. Who is correct?

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

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Definitions:

Sodium/Potassium Pump

A membrane protein that moves sodium ions out of cells and potassium ions into cells against their concentration gradients, essential for cellular function.

Pinocytosis

Process by which vesicle formation brings macromolecules into the cell.

Exocytosis

Process in which an intracellular vesicle fuses with the plasma membrane so that the vesicle’s contents are released outside the cell.

Endocytosis

Process by which substances are moved into the cell from the environment; includes phagocytosis, pinocytosis, and receptor-mediated endocytosis.