For a tanker without ABS, which emergency braking methods does the handbook describe?
Correct answer: Controlled or stab braking
For a vehicle without ABS, the handbook describes controlled or stab braking. With ABS, apply the braking force needed without pumping. Sudden steering while braking can overturn a tanker.
Source: Texas DL-7C, March 2026, sections 8.3.2 and 5.4.2–5.4.3, PDF pages 110 and 88 ↗
What is the recommended speed-control sequence for a curve in a tank vehicle?
Correct answer: Slow before the curve, then accelerate slightly through it
Reducing speed before entry avoids heavy braking while turning; slight acceleration through the curve improves control.
Source: Texas DL-7C, March 2026, section 8, PDF page 110: Curve control ↗
Which tanker may require more stopping distance than many drivers expect?
Correct answer: An empty tank vehicle
An empty tanker can need more stopping distance than a loaded one. Wet pavement further increases stopping distance; allow extra space instead of assuming an empty vehicle will stop quickly.
Source: Texas DL-7C, March 2026, section 8, PDF page 110: Stopping distance ↗
Which action can cause a tank vehicle to skid?
Correct answer: Oversteering, hard acceleration, or excessive braking
Abrupt steering, acceleration, and braking can break tire traction.
Source: Texas DL-7C, March 2026, section 8, PDF page 110: Skid prevention ↗
What can happen if the drive or trailer wheels of a tank trailer begin to skid?
Correct answer: The combination may jackknife
A skid at the drive or trailer wheels can start a jackknife, so the driver must restore wheel traction.
Source: Texas DL-7C, March 2026, section 8, PDF page 110: Jackknife risk ↗
