Tanker Practice Test Flashcards

What is a major difference between baffled and unbaffled tanks in terms of surge?

Answer: Baffled tanks reduce front-to-back surge only

Baffles cut down on forward-and-back surge but do not stop side-to-side movement.

Why should you keep a greater following distance when driving a loaded tanker?

Answer: Stopping distance is longer due to weight and surge

Heavy liquid loads and surge increase stopping distance, so more space ahead is needed.

What should you do before entering an on-ramp or off-ramp in a tanker?

Answer: Slow down to well below the posted ramp speed

Ramp speed signs are set for ordinary vehicles, so tankers should slow well below them to prevent rollover.

When a tank is divided into compartments, why is load balance important?

Answer: To keep proper axle weight and handling

Improperly balanced compartments can overload axles and make the vehicle handle poorly.

What happens to liquid in a smooth bore tank during a quick stop?

Answer: It surges strongly forward

With no baffles, liquid in a smooth bore tank surges forcefully forward during a sudden stop.

Why must you inspect the tank's special equipment such as vapor recovery kits before a trip?

Answer: They must work properly to operate safely and legally

Special tanker equipment must function correctly to operate the vehicle safely and meet regulations.

What is the best practice when going down a steep grade in a tanker?

Answer: Use a low gear and steady braking

A lower gear and controlled braking prevent overheating brakes and manage the heavy, surging load.