Question

air in the brake hydraulic system can cause all of these except ______.
hard brake pedal
lower than normal brake pedal
may require the driver to "pump up" the brakes before they will stop the vehicle
spongy brake pedal
question 9
1 pts
two technicians are discussing loosening a stuck bleeder valve. technician a says to use a 6-point wrench and simply pull on the wrench until it loosens. technician b says that a shock is usually necessary to loosen a stuck bleeder valve. which technician is correct?
technician a only
technician b only
both technicians
neither technician
question 10
1 pts
the proper brake bleeding sequence for a front/rear split hydraulic system is ______.
left front, left rear, right front, right rear
right rear, left rear, right front, left front
right front, right rear, left front, left rear
right rear, left front, right front, left rear

Explanation:

Air in brake hydraulics compresses, causing spongy/low pedals or needing pumping. A hard pedal is from other issues (e.g., seized caliper). For stuck bleeders: 6-point wrench avoids rounding, but shock (tap) helps loosen; neither tech is fully correct. Front/rear split bleeding uses furthest from master cylinder first (rears then fronts, alternating sides to maintain pressure).

Answer:

s:
Hard brake pedal
Neither technician
Right rear, left rear, right front, left front