TEXAS COMMERCIAL RULES 2026 ROAD
SIGNS AND VEHICLE OPERATION WORKBOOK
SOLVED QUESTIONS COMPILATION
◉ What things should you check during a trip?
Answer: Instruments, All gauges, voltmeter, mirrors, tires, lights, etc.
◉ Name some key steering parts.
Answer:
◉ Name some suspension system defects.
Answer: Loose or broken spring hangers, missing or broken leaves
in leaf springs, leaking shocks, other cracked or damaged equipment
◉ What kinds of emergency equipment must you have?
Answer: Fire extinguisher, spare electrical fuses, and three reflective
red triangles or burning flares.
◉ What is the minimum tread depth for front tires? All other tires?
Answer: 4/32. 2/32.
,◉ Name some things to check during vehicle walk around
inspection.
Answer: Lights, clean glass and mirrors, tires, condition of rims
brakes and suspension.
◉ What should wheel bearing seals be checked for?
Answer: leaking and rust
◉ How many red reflective triangles should you carry?
Answer: 3
◉ How do you test hydraulic brakes for leaks?
Answer: Pump the brakes 3 times and hold break pedal down for at
least 5 seconds.
◉ Why put the starter switch key in your pocket during the vehicle
inspection?
Answer: So it cannot be started or running during the walk around
inspection
◉ Why should you back toward the Driver's side?
Answer: So you can see better
, ◉ If stopped on a hill, how can you start moving without rolling
back?
Answer: Downshift prior to moving
◉ When backing, why is it important to use a helper?
Answer: to assist with blind spots
◉ What's the most important hand signal that you and the helper
should agree on?
Answer: STOP
◉ What are the two special conditions where you should downshift?
Answer: 1.) Before Starting Down a Hill.
2.) Before Entering a Curve
◉ When should you downshift automatic transmissions?
Answer: To get greater engine braking when going down grades.
◉ Retarders keep you from skidding when the road is slippery
(true/false)?
Answer: False
SIGNS AND VEHICLE OPERATION WORKBOOK
SOLVED QUESTIONS COMPILATION
◉ What things should you check during a trip?
Answer: Instruments, All gauges, voltmeter, mirrors, tires, lights, etc.
◉ Name some key steering parts.
Answer:
◉ Name some suspension system defects.
Answer: Loose or broken spring hangers, missing or broken leaves
in leaf springs, leaking shocks, other cracked or damaged equipment
◉ What kinds of emergency equipment must you have?
Answer: Fire extinguisher, spare electrical fuses, and three reflective
red triangles or burning flares.
◉ What is the minimum tread depth for front tires? All other tires?
Answer: 4/32. 2/32.
,◉ Name some things to check during vehicle walk around
inspection.
Answer: Lights, clean glass and mirrors, tires, condition of rims
brakes and suspension.
◉ What should wheel bearing seals be checked for?
Answer: leaking and rust
◉ How many red reflective triangles should you carry?
Answer: 3
◉ How do you test hydraulic brakes for leaks?
Answer: Pump the brakes 3 times and hold break pedal down for at
least 5 seconds.
◉ Why put the starter switch key in your pocket during the vehicle
inspection?
Answer: So it cannot be started or running during the walk around
inspection
◉ Why should you back toward the Driver's side?
Answer: So you can see better
, ◉ If stopped on a hill, how can you start moving without rolling
back?
Answer: Downshift prior to moving
◉ When backing, why is it important to use a helper?
Answer: to assist with blind spots
◉ What's the most important hand signal that you and the helper
should agree on?
Answer: STOP
◉ What are the two special conditions where you should downshift?
Answer: 1.) Before Starting Down a Hill.
2.) Before Entering a Curve
◉ When should you downshift automatic transmissions?
Answer: To get greater engine braking when going down grades.
◉ Retarders keep you from skidding when the road is slippery
(true/false)?
Answer: False
