Sample ASE-Style Brake System Diagnostics Test

What is the recommended action if brake fluid is found to be contaminated?

• Flush the brake system and refill with new fluid

• Replace the brake fluid

• Add more brake fluid to dilute the contamination

• Ignore the contamination and continue driving

Which of the following is NOT a safety precaution to take when working on brake systems?

• Wear safety glasses

• Use proper lifting equipment

• Dispose of brake fluid properly

• Work quickly to minimize downtime

Which component is responsible for converting hydraulic pressure into mechanical force in a brake system?

• Brake master cylinder

• Brake fluid reservoir

• Brake caliper

• Brake pedal

A vehicle pulls to the left when the brakes are applied. What is the MOST likely cause?

• A faulty right front caliper

• Uneven tire pressure

• Worn brake pads

• Misaligned wheels

During a brake inspection, you notice uneven brake pad wear on the front axle. What could be the cause?

• A sticking brake caliper or worn guide pins

• Low brake fluid level

• Incorrect brake pad installation

• Worn out tires

What is the purpose of brake bleeding?

• To remove air from the brake lines

• To increase brake fluid pressure

• To change the brake pads

• To enhance the car's acceleration

What is the primary function of brake calipers in a vehicle's braking system?

• To clamp the brake pads against the rotor

• To increase the vehicle's speed

• To reduce fuel consumption

• To enhance the vehicle's suspension

What is the purpose of a brake booster?

• To increase the speed of the vehicle

• To reduce the effort required to depress the brake pedal

• To enhance fuel efficiency

• To improve engine performance

Which of the following is NOT a symptom of a sticking brake caliper?

• A pulsating brake pedal

• The vehicle pulling to one side during braking

• Overheating of the affected wheel

• Excessive brake pad wear on one wheel

What is the purpose of brake performance testing?

• To assess the effectiveness of the braking system

• To measure fuel efficiency

• To evaluate tire pressure

• To check engine performance