ASE A5 Practice Test Brakes Exam

ASE A5 Practice Test Brakes Exam A vehicle with ABS anti-lock brakes has an audible clicking noise when it is first started. The noise goes away after a few seconds. Technician A says this is one of the hydraulic valves in the hydraulic valve assembly sticking. Technician B says this is a normal condition. Who is correct? - Answer ️️ -TECH B is correct. The ABS system runs a system check when the key is first turned to the ON position. The valves sometimes make a clicking noise during this check. A hydro-boost brake system has reduced braking performance. Technician A says to check the power steering system. Technician B says to check the vacuum check valve. Who is correct? - Answer ️️ -TECH A is correct. The power steering pump produces pressure for the Hydro- Boost unit. A vehicle with power assisted brakes has a hard brake pedal. Which of the following is LEAST likely to cause this condition? A. Master cylinder. B. Vacuum check valve. C. Brake booster. D. Low manifold vacuum. - Answer ️️ -Answer A is correct. Faulty master cylinders do not typically result in a hard brake pedal. Actually it's more common for a faulty master cylinder to cause a low brake pedal that fades to the floor as it is applied. This is the least likely component listed to result in a hard brake pedal. A vehicle pulls to the left only when the brakes are applied. This condition is MOST likely caused by: A. A seized left front caliper. B. A restriction in the left front brake line. C. Leaking master cylinder cup seals. D. A seized right front caliper. - Answer ️️ -Answer D is correct. A frozen right front caliper will cause the vehicle to pull to the left when braking. Technician A says accumulators are found only on non-integral ABS systems. Technician B says some integral ABS units contain high pressure accumulators that must be discharged before repair. Who is correct? - Answer ️️ -TECH B is correct. High pressure units can be dangerous and must be discharged before removal. Always check with manufacturer's procedures before disassembling an ABS unit Technician A says ABS control units are programmed to ignore speed sensor input variations below a certain threshold. Technician B says a one-channel ABS system controls hydraulic pressure to the rear brake units. Who is correct? - Answer ️️ -Both technicians are correct. A vehicle's right front wheel has a growl that increases with vehicle speed. The MOST likely cause is: A. Excessive rotor lateral run out. B. Warped rear brake drums. C. Worn CV-Joint. D. Worn wheel bearing. - Answer ️️ -Answer D is correct. A worn wheel bearing will cause a growl that increases with vehicle speed. Two technicians are discussing master cylinder residual check valves. Technician A says the check valve is used on four wheel disc brake systems. Technician B says the valve maintains pressure when the brakes are released. Who is correct? - Answer ️️ -Technician B is correct. The constant low pressure, usually 6 psi to 8 psi keeps air from entering the wheel cylinders. The brake pad wear indicator light is illuminated on the instrument panel. Technician A says this is because the brake pads have become contaminated. Technician B says this is the pad wear sensor contacting the brake rotor. Who is correct? - Answer ️️ -TECH B is correct. When the sensors tip contacts the rotor, the pad warning light illuminates on the instrument panel. The rear wheels of a vehicle are locking up only when the brakes ar