China Truck Subject 4 Practice Questions - China Commercial Vehicle Driving Test Subject 4 Safe And Civilized Driving (大型客货车科目四安全文明驾驶常识) Exam

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When a heavy rigid truck or articulated combination vehicle makes a right turn at an urban intersection, what primary factor creates the hazardous right-side blind spot often referred to as the 'Death Zone' (死亡盲区)?

The inner wheel difference (内轮差), where the rear wheels follow a significantly tighter turning arc than the front steering wheels The aerodynamic downforce created by the front bumper deflecting side airflow The pneumatic brake lag between the foot valve and the trailer relay valve The reflection of the curb mirror distorting distance perception in direct sunlight

Correct Answer:

The inner wheel difference (内轮差), where the rear wheels follow a significantly tighter turning arc than the front steering wheels

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