CDL · Tank vehicles

A tanker driver comes to a curve or a freeway ramp that has a posted speed. How fast should the tanker go through it?

Correct answer: Much slower than posted, because a tanker can overturn even at the posted speed.

Answer options

  1. ASlower only on exit ramps; curves and entrance ramps are fine at the posted limit
  2. BMuch slower than posted, because a tanker can overturn even at the posted speed Correct
  3. CRight at the posted speed, because those limits are set with tankers in mind

Why

A tanker's high center of gravity means it can overturn on a curve even when the driver stays at the posted speed, as testing has shown. Slow to a speed well under the posted figure for curves, on-ramps, and off-ramps.

About this question

Topic: Tank vehicles   License: CDL

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Where it applies: Asked in every state.

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This question is part of Liquid Surge and Tanker Handling (20 questions). Take the full set and check your score.

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