Home › CDL Practice Tests › General Knowledge Questions › Question 279
Where is the largest blind spot for a typical tractor-trailer?
- A.Directly in front of the bumper
- B.Under the driver door only
- C.Behind the sun visor
- D.Directly behind the trailer, extending a long distance where neither mirrors nor a quick glance can see a person or low object
Correct answer
D. Directly behind the trailer, extending a long distance where neither mirrors nor a quick glance can see a person or low object
Why
The area immediately behind a closed trailer is completely hidden from the driver, and a child or worker there is invisible. That is why a walk-around immediately before backing, not minutes earlier, matters so much.
Manual topic: Backing - Blind Spots · From the General Knowledge practice bank (GK-279).