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Most hydraulic brake systems use ________ rubber.


A) BUNA N
B) Neoprene
C) EPDM
D) SBR

E) B) and D)
F) A) and B)

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The two types of flares used on brake lines are ________.


A) SAE and DOT
B) Double flare and ISO
C) SAE and double flare
D) Ball flare and bubble flare

E) All of the above
F) B) and D)

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What type of tubing flare is shown in this illustration? What type of tubing flare is shown in this illustration?   A) SAE flare B) BVD flare C) ISO flare D) ESI flare


A) SAE flare
B) BVD flare
C) ISO flare
D) ESI flare

E) None of the above
F) A) and B)

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Technician A says that DOT 5 brake fluid can be added to DOT 3 brake fluid. Technician B says that it is wise to purchase brake fluid that is in metal rather than plastic containers. Which technician is correct?


A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

E) A) and D)
F) B) and C)

Correct Answer

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SAE flare fittings used on hydraulic brake systems must ________.


A) Have a 45-degree taper on the male part of the fitting
B) Have no taper on the female part of the fitting
C) Have a 20-degree taper on the male and female parts of the fitting
D) Be single flared

E) B) and D)
F) B) and C)

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As brake fluid ages, what happens?


A) The color changes to purple
B) The viscosity (thickness) decreases
C) The boiling temperature decreases
D) The boiling temperature increases

E) None of the above
F) All of the above

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In general, a good brake fluid should ________.


A) Not boil easily
B) Be very thick
C) Freeze at very low temperatures
D) Hold moisture well

E) A) and B)
F) B) and D)

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A

Used brake fluid should be ________.


A) Mixed with and recycled with used oil
B) Disposed of properly according to state and local laws
C) Poured onto open ground to reduce dust
D) Poured down the drain

E) A) and D)
F) B) and C)

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What type of tubing flare is shown in this illustration? What type of tubing flare is shown in this illustration?   A) ISO flare B) BVD flare C) SAE flare D) ESI flare


A) ISO flare
B) BVD flare
C) SAE flare
D) ESI flare

E) A) and D)
F) None of the above

Correct Answer

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Modern brake tubing is ________.


A) Made of copper
B) Able to withstand an internal pressure of 2000 psi
C) Double-walled
D) Single-walled

E) B) and D)
F) C) and D)

Correct Answer

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The dry ERBP of brake fluid ________.


A) Reflects its performance when in service
B) Reflects its performance when new and uncontaminated
C) Is known only to the manufacturer
D) Reflects its temperature compatibility

E) A) and D)
F) A) and C)

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Because brake fluid is hygroscopic, it ________.


A) Absorbs moisture
B) Must lubricate pistons and cups to reduce wear
C) Creates an odor if not flushed annually
D) All of the above

E) None of the above
F) All of the above

Correct Answer

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Technician A says that glycol-based brake fluid causes the seals to swell slightly. Technician B says the DOT 5 (silicone-based) brake fluid causes rubber seals to swell slightly. Which technician is correct?


A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

E) None of the above
F) B) and C)

Correct Answer

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An armored brake line can be replaced with a plain, double-walled brake line.

A) True
B) False

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Flexible brake hose should be inspected for all of the following EXCEPT ________.


A) Cracks
B) Worn outer ribs
C) Twisted
D) Leakage

E) A) and B)
F) B) and C)

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B

Polyglycol brake fluid is labeled ________.


A) DOT 3 or 4
B) DOT 5 or 6
C) DOT 6
D) DOT 5

E) A) and B)
F) B) and D)

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The dry boiling point of DOT 3 is higher than the wet boiling point of DOT 4.

A) True
B) False

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Technician A says FMVSS 116 lists a brake fluid standard ONLY for temperature compatibility. Technician B says FMVSS 116 lists a brake fluid standard for viscosity AND boiling point. Which technician is correct?


A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

E) B) and D)
F) A) and B)

Correct Answer

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B

Which of the following is NOT a characteristic of conventional brake fluid?


A) Lasts the life of the vehicle unless there is a leak
B) Removes paint if spilled on vehicle surfaces
C) Is clear or amber in color
D) Absorbs moisture from the air

E) A) and B)
F) B) and C)

Correct Answer

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Brake fluid boiling point can be measured using ________.


A) A Styrofoam cup
B) An electronic tester
C) A hygrometer
D) A candy thermometer

E) B) and C)
F) A) and B)

Correct Answer

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