Question

exposing brake fluid to water lowers its ____.
options:
compressibility
boiling point
resistance to freezing
both b and c

brake fluid hygroscopic, which means it is designed to absorb ____.
options:
brakes
air
moisture
tires

why should brake fluid containers be tightly closed when stored?
options:
brake fluid will evaporate.
the exposure of brake fluid to moisture must be limited.
dust may enter the container.
brake fluid exposed to air becomes gummy and thick

a basic principle of hydraulics is that ____ cannot be compressed.
options:
air
moisture

Explanation:

First Question:

Brake fluid exposed to water (moisture) has reduced boiling point (since water has lower boiling point than typical brake fluid components) and reduced resistance to freezing (water freezes, affecting the fluid's anti - freeze properties). So both boiling point and resistance to freezing are lowered.

Hygroscopic substances are those that absorb moisture from the surrounding air. Brake fluid is hygroscopic to manage moisture - related issues in the braking system.

Brake fluid is hygroscopic, so exposure to moisture (from air) can degrade its properties (like boiling point and freezing resistance). Tightly closing containers limits this moisture exposure. Evaporation is not a main concern, dust entry is less critical, and brake fluid doesn't become gummy from air exposure.

Answer:

D. Both B and C

Second Question: