A - Hydraulic Brake System Fundamentals

Question 1

A force of 800 N is applied to a master cylinder with an area of 8.0 cm squared. The system pressure developed is:

Answer 1

1000 kPa

Question 2

A brake system develops 350 psi on application. The force produced at a calliper piston with an area of 2.75 in squared is:

Answer 2

962.5 lb.

Question 3

A 0.5 cm diameter master cylinder is replaced with a 2.5 cm diameter master cylinder. The result is:

Answer 3

Less pressure in the system.

Question 4

One of the reasons DOT 5 brake fluid is not recommended for ABS systems is because it:

Answer 4

Not hygroscopic.

Question 5

The polyglycol-based brake fluid that has the most stable boiling point is:

Answer 5

DOT 4.

Question 6

The hydraulic brake system converts kinetic energy to heat energy through:

Answer 6

Friction.

Question 7

Brake fluid should be stored only in a sealed container because:

Answer 7

The fluid is hygroscopic.

Question 8

Friction between two sliding surfaces depends on:

Answer 8

The amount of force pressing the two surfaces together, the temperature of the surfaces in contact, and the coefficient of friction of the materials in contact.

Question 9

The principle of static friction is used in:

Answer 9

The park brake system.

Question 10

Pressure in an enclosed liquid:

Answer 10

Acts with equal force on equal areas.

Question 11

The wheel cylinders and callipers convert pressure developed in the system into:

Answer 11

Mechanical force.

Question 12

The force that tends to resist motion between objects in contact is called:

Answer 12

Friction.