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CDL Tanker and Hazmat Combo Endorsement X -5

Pass your CDL Tanker and Hazmat Combo Endorsement Test with ease. Start here by taking this Free 25 question practice test, every question and answer is straight out of the Commercial Drivers License Handbook.
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[permit_quiz:state:entity:title] [permit_quiz:state:entity:field_agency_shortname] Sample Test Questions

A tank trailer with baffles helps to control ________.
  • The weight of the vehicle.
  • Liquid movement from side to side.
  • Liquid movement from front to back.
  • None of the listed answers.
Because of a liquid tanker's high center of gravity and liquid surge, you should approach curves by ______.
  • Speeding up before the curve, then accelerate even more through the curve.
  • Slowing down before the curves, then accelerating slightly through the curve.
  • Speed up before the curve, then decelerate slightly through the curve.
  • Slow down before the curve, then decelerating even more through the curve.
Because tanks have a higher center of gravity, you should _________.
  • Take highway curves and on ramp/ off ramp curves well below the posted speeds.
  • Never use your brakes.
  • Drive straight through your journey without stopping.
  • Not drive onto or off ramp curves.
Hauling liquids in tanks require special skills because ________.
  • Liquid is significantly heavier than solids.
  • High center of gravity and liquid's movement.
  • Tanks that carry liquids have more controls.
  • Low center of gravity.
How does liquid surge affect the handling of a tanker?
  • The surge lets you turn corners more easily.
  • The surge can move the tank in the direction the liquid waves move.
  • Liquid surge doesn't affect the handling of a tanker.
  • The surge can help the tank decelerate.