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Tanker Practice Question 55

NTanker · Question 55

Surge effects on braking can:

• ABe ignored at low speed
• BSignificantly extend stopping distance and unbalance the vehicle, especially on partial loads
• CReduce stopping distance
• DEliminate skidding

Correct answer: B. Significantly extend stopping distance and unbalance the vehicle, especially on partial loads

Why: Liquid surge during braking can throw the vehicle forward, increase stopping distance, and tip the vehicle off-balance. Always allow extra room.

How this question fits the Tanker test

Liquid surge can push a vehicle through an intersection or roll it on a curve. The Tanker endorsement specifically addresses how unbaffled and partially full tanks behave differently from rigid loads.

Study technique for this topic

Know the difference between baffled, unbaffled, and compartmented tanks, the safe outage percentage for liquid expansion, and why front-to-back surge is more dangerous than side-to-side surge.

Related Tanker practice questions

• Q39. When approaching a curve in a tanker, you should:
• Q52. When discharging at a customer site, the proper grounding/bonding sequence is:
• Q3. A 'baffle' inside a tank is:
• Q16. Liquid surge can:
• Q29. Vapor recovery during loading prevents:

Continue your CDL preparation

The Tanker portion of the CDL knowledge exam covers more than this single question. Use this site's full Tanker bank to drill every topic, then test yourself with one of our state-specific practice sets to confirm you are ready for the actual DMV exam in your state. Always check your state's CDL handbook for any local addenda before the test day.

If you are still building your overall CDL foundation, start with the General Knowledge bank — every CDL applicant must pass it — and then work outward to the endorsements you plan to add.