16.

Answer A is wrong. The secondary seal can leak externally and damage the booster diaphragm.

Answer B is correct. Blocking the compensation port can lead to pressure buildup and brake lockup.

Answer C is wrong. Technician B is correct.

Answer D is wrong. Technician B is correct.

Return    Learn more about the master cylinders replenishing port.

17.

Answer A is correct. An inoperative brake booster will result in a hard brake pedal.

Answer B is wrong. A brake booster needs Between 17-21 Hg of vacuum to function properly.

Answer C is wrong. Technician A is correct.

Answer D is wrong. Technician A is correct.

Return    Learn more about brake booster diagnosis and operation.

18.

Answer A is wrong. This is usually caused by the sensors tip touching the rotor. If the brake pads have become contaminated the pads must be replaced.

Answer B is correct. When the sensors tip contacts the rotor the pad warning sensor and related components light the pad warning indicator on the instrument panel.

Answer C is wrong. Technician B is correct.

Answer D is wrong. Technician B is correct.

Return   Learn more about brake pad warning indicators.

19.

Answer A is wrong. This is a normal condition.

Answer 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.

Answer C is wrong. Technician B is correct.

Answer D is wrong. Technician B is correct.

Return   Learn more about the ABS hydraulic valve assembly.

20.

Answer A is correct. Also the primary typically has a shorter lining than the secondary.

Answer B is wrong. Brake shoe manufacturers will also use glue to bond the lining to the shoe.

Answer C is wrong. Technician A is correct.

Answer D is wrong. Technician A is correct.

Return    Learn more about brake shoe replacement.