Reading Flashcards
7 cards from real Air Brake Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Reading flashcards as text
According to standard air brake guidance, how should you brake on a long downhill grade?
Answer: Use a low gear and proper braking technique
The primary brake on a long grade is the engine; select a low gear and use the brakes properly.
Reading the rule for stab braking on a downgrade, what is the correct sequence?
Answer: Apply fully, then release when you slow about 5 mph below safe speed, repeat
Stab braking means applying the brakes fully, releasing when slowed about 5 mph below your safe speed, then repeating.
What does the air brake manual say causes brake drums to overheat?
Answer: Excessive use of the service brakes on long grades
Excessive use of the service brakes, such as riding them down a grade, causes overheating and fade.
When the manual describes brake lag, what is it referring to?
Answer: Delay before air-applied brakes take effect compared to hydraulic
Air brakes take longer to work than hydraulic brakes because air must travel through the lines, called brake lag.
Reading total stopping distance guidance, which factor is added for air brakes that hydraulic brakes do not have?
Answer: Brake lag distance
Air brakes add brake lag distance to perception, reaction, and braking distance.
What does the guidance recommend you do before starting down a long, steep grade?
Answer: Slow down and shift to a low gear
You should slow down and shift to a low gear before descending a long, steep grade.
Per air brake instructions, what is the proper following distance increase in bad weather or poor traction?
Answer: Increase the following distance
Poor traction and bad weather require increasing your following distance for safe stopping.