Question

brake fluids classified as dot 3 or dot 4 are ___ based.
glycol
silicone
petroleum - based oils in the brake system will cause the seals to ___.
dry
shrink
swell
crack
tubing that connects two hydraulic units is usually called a hydraulic ___.
pressure
line
power
motion
the master cylinder of a split brake system has two ___.
pistons
pushrods
calipers
wheel cylinders

Explanation:

First Question:

DOT 3 and DOT 4 brake fluids are glycol - based. Silicone - based brake fluids are typically DOT 5. So the correct option is Glycol.

Petroleum - based oils are incompatible with the rubber seals in brake systems. They cause the seals to swell. Drying, shrinking, or cracking are not the typical effects of petroleum - based oils on brake system seals.

In hydraulic systems, the tubing that connects two hydraulic units is called a hydraulic line. "Pressure", "Power", and "Motion" do not accurately describe this tubing.

Answer:

Glycol (the option with text "Glycol")

Second Question: