Class F – GA question and answer 2025 newest
All vehicles with air brakes must have a low air pressure warning signal. True or False? -
True
Coffee and a little fresh air will help a drinker sober up. True or False - False. Only time
will sober you up.
Common medicines for colds can make you sleepy. True or False - True
Describe the proper braking technique when going down a long, steep downgrade. -
apply the brakes just hard enough to feel a definite slowdown; when speed has been
reduced to approximately five mph below your "safe" speed, release the brakes; repeat when
speed has increased to your "safe" speed
Empty trucks have the best braking. True or False? - False. Empty trucks require greater
stopping distances, because an empty vehicle has less traction. It can bounce and lock up its
wheels, giving much poorer braking
Front wheel brakes are good under all conditions. True or False? - 5. TRUE: Front-wheel
braking is good under all conditions. Tests show that front-wheel skids from braking are not
likely even on ice.
How can you check that the spring brakes come on automatically? - Continue to fan off
the air pressure by stepping on and off the brake pedal to reduce tank pressure. The tractor
protection valve and parking brake valve should close (pop out) on a tractor-trailer combination
and single vehicle types when the air pressure falls to the manufacturer's specification (20-40
psi). This will cause the spring brakes to come on.
, How can you test the low pressure warning signal? - shut the engine off when you have
enough pressure that the low pressure warning signal is not on. turn the electrical power on
and step on and off the brake pedal to reduce the air pressure in the tank. the warning signal
must come one before the pressure drops to less than 60psi
How do you brake when you drive a tractor-trailer combination with ABS? - normal
braking procedures
How do you find out how many seconds of following distance space you have? - You need
at least one second for each 10 ft of vehicle lenght at speeds below 40mph. You need to add
one second for greater speeds.
How do you know if your vehicle has antilock brakes? - They will have yellow malfunction
lamps on the instrument panels and yellow malfunction lamps on the trailers. Dollies after 1998
are required to have a lamp on the left side.
How do you know if your vehicle is equipped with antilock brakes? - If the vehicle was
manufactured on or after March 1, 1998.
How do you recognize a distracted driver? - Watch for vehicles that may drift over the
lane divider lines or within their own lane, vehicles traveling at inconsistent speeds, drivers who
are preoccupied with maps, food, cigarettes, cell phones, or other objects, drivers who appear
to be involved in conversations with their passengers.
How do you test hydraulic brakes for leaks? - Pump the brake pedal three times, then
apply firm pressure to the pedal and hold for five seconds. The pedal should not move.
How do you use in-vehicle communications equipment cautiously? - Find a place to pull
over and keep conversations short.
All vehicles with air brakes must have a low air pressure warning signal. True or False? -
True
Coffee and a little fresh air will help a drinker sober up. True or False - False. Only time
will sober you up.
Common medicines for colds can make you sleepy. True or False - True
Describe the proper braking technique when going down a long, steep downgrade. -
apply the brakes just hard enough to feel a definite slowdown; when speed has been
reduced to approximately five mph below your "safe" speed, release the brakes; repeat when
speed has increased to your "safe" speed
Empty trucks have the best braking. True or False? - False. Empty trucks require greater
stopping distances, because an empty vehicle has less traction. It can bounce and lock up its
wheels, giving much poorer braking
Front wheel brakes are good under all conditions. True or False? - 5. TRUE: Front-wheel
braking is good under all conditions. Tests show that front-wheel skids from braking are not
likely even on ice.
How can you check that the spring brakes come on automatically? - Continue to fan off
the air pressure by stepping on and off the brake pedal to reduce tank pressure. The tractor
protection valve and parking brake valve should close (pop out) on a tractor-trailer combination
and single vehicle types when the air pressure falls to the manufacturer's specification (20-40
psi). This will cause the spring brakes to come on.
, How can you test the low pressure warning signal? - shut the engine off when you have
enough pressure that the low pressure warning signal is not on. turn the electrical power on
and step on and off the brake pedal to reduce the air pressure in the tank. the warning signal
must come one before the pressure drops to less than 60psi
How do you brake when you drive a tractor-trailer combination with ABS? - normal
braking procedures
How do you find out how many seconds of following distance space you have? - You need
at least one second for each 10 ft of vehicle lenght at speeds below 40mph. You need to add
one second for greater speeds.
How do you know if your vehicle has antilock brakes? - They will have yellow malfunction
lamps on the instrument panels and yellow malfunction lamps on the trailers. Dollies after 1998
are required to have a lamp on the left side.
How do you know if your vehicle is equipped with antilock brakes? - If the vehicle was
manufactured on or after March 1, 1998.
How do you recognize a distracted driver? - Watch for vehicles that may drift over the
lane divider lines or within their own lane, vehicles traveling at inconsistent speeds, drivers who
are preoccupied with maps, food, cigarettes, cell phones, or other objects, drivers who appear
to be involved in conversations with their passengers.
How do you test hydraulic brakes for leaks? - Pump the brake pedal three times, then
apply firm pressure to the pedal and hold for five seconds. The pedal should not move.
How do you use in-vehicle communications equipment cautiously? - Find a place to pull
over and keep conversations short.
