Dry bulk tank loads can ________ during transport

• A. Tilt
• B. Vibrate
• C. Expand
• D. Shift

Answer: (D)

Dry bulk cargo inside a tank or hopper can move around during transit, and that movement is the main idea here. Because the material is free-flowing, it can slide or settle as the vehicle accelerates, brakes, or goes around corners. When it shifts, the distribution of weight changes the vehicle’s center of gravity, making handling harder and increasing the risk of loss of control or a rollover, especially if the tank isn’t filled to the top.

Expansion isn’t the right fit because dry bulk doesn’t change its volume in transit. Vibrations can happen from rough roads, but the critical danger is the internal movement of the load itself. Tilt would imply the entire cargo container leans, which isn’t the typical issue described by this scenario; the concern is the load shifting inside the container.