468 PENNSYLVANIA PHILADELPHIA
DEMOLITION CLASS B PRACTICE EXAM 2026
◉ What things should you check during a trip? Answer: -tires,
wheels, rims
-brakes
-lights/reflectors
◉ Name some key steering system parts Answer: -tire rod
-steering wheel
-steering shaft
-steering arm
-power steering cylinder
-drag link
-pitman arm
-gear box
-hydraulic fluid reservoir
-spindle
-steering knuckle
◉ Name some suspension system defects Answer: -spring hangers
that allow movement of axle from proper position
,-cracked or broken spring hangers
-missing or broken leaves in any leaf spring
-broken leaves in a multi-leaf spring
-shifted leaves that might hit a tire or other part
◉ What 3 kinds of emergency equipment must you have? Answer: -
liquid flares
-reflective triangles
-fire extinguisher
◉ What is the minimum tread depth for the front tires? Answer:
4/32
◉ What is the minimum tread depth for all other tires? Answer:
2/32
◉ Name some things you should check on the front of your vehicle
during the walk-around inspection. Answer: -low beams on and
working properly, not cracked
-4 ways on and properly working
-condition of reflectors/lights
-condition of wipers
-condition of windshield
, - condition of front axle
-condition of steering system
◉ What should bearing seals be checked for? Answer: leaks
◉ How many red reflective triangles should you carry? Answer: 3
◉ How do you test hydraulic brakes for leaks? Answer: (With the
vehicle stopped):
1. pump the brake pedal 3 times
2. apply firm pressure for 5 seconds
3. then hold and see if the pedal moves
◉ Why put the starter switch key in your pocket during pre-trip
inspection? Answer: so the vehicle doesn't start or move during the
inpsection
◉ Why should you back towards the drivers side? Answer: it allows
you to see better
◉ If stopped on a hill, how can you start moving without rolling
backwards? Answer: use parking brake
DEMOLITION CLASS B PRACTICE EXAM 2026
◉ What things should you check during a trip? Answer: -tires,
wheels, rims
-brakes
-lights/reflectors
◉ Name some key steering system parts Answer: -tire rod
-steering wheel
-steering shaft
-steering arm
-power steering cylinder
-drag link
-pitman arm
-gear box
-hydraulic fluid reservoir
-spindle
-steering knuckle
◉ Name some suspension system defects Answer: -spring hangers
that allow movement of axle from proper position
,-cracked or broken spring hangers
-missing or broken leaves in any leaf spring
-broken leaves in a multi-leaf spring
-shifted leaves that might hit a tire or other part
◉ What 3 kinds of emergency equipment must you have? Answer: -
liquid flares
-reflective triangles
-fire extinguisher
◉ What is the minimum tread depth for the front tires? Answer:
4/32
◉ What is the minimum tread depth for all other tires? Answer:
2/32
◉ Name some things you should check on the front of your vehicle
during the walk-around inspection. Answer: -low beams on and
working properly, not cracked
-4 ways on and properly working
-condition of reflectors/lights
-condition of wipers
-condition of windshield
, - condition of front axle
-condition of steering system
◉ What should bearing seals be checked for? Answer: leaks
◉ How many red reflective triangles should you carry? Answer: 3
◉ How do you test hydraulic brakes for leaks? Answer: (With the
vehicle stopped):
1. pump the brake pedal 3 times
2. apply firm pressure for 5 seconds
3. then hold and see if the pedal moves
◉ Why put the starter switch key in your pocket during pre-trip
inspection? Answer: so the vehicle doesn't start or move during the
inpsection
◉ Why should you back towards the drivers side? Answer: it allows
you to see better
◉ If stopped on a hill, how can you start moving without rolling
backwards? Answer: use parking brake
