Air braking takes more time than hydraulic braking because air:

Takes time to flow through the lines.. Section 5.4: Air takes time to flow (Brake Lag), adding about 1/2 second to reaction time.

Air braking takes more time than hydraulic braking because air:

ANSWER BREAKDOWN
  • A. Correct. Air takes time to flow (Brake Lag), adding about 1/2 second to reaction time.
  • B. Incorrect. "Is heavier." is not correct. Air takes time to flow (Brake Lag), adding about 1/2 second to reaction time.
  • C. Incorrect. "Is hotter." is not correct. Air takes time to flow (Brake Lag), adding about 1/2 second to reaction time.
  • D. Incorrect. "Is colder." is not correct. Air takes time to flow (Brake Lag), adding about 1/2 second to reaction time.