When passing on a multilane highway:
- Be sure the passing lane is clear. ✓
- Pass only on the right.
- Watch for oncoming traffic.
- There is no need to signal.
Answer: A. Be sure the passing lane is clear.
Before passing on a multilane highway, be sure the passing lane is clear.
Why this is the answer
The handbook's passing steps start with making sure the roadway is clear: check the mirrors and blind spot, and confirm no other vehicle is already passing you. For trucks it says to enter the passing lane only when it is clear and passing is legal. That is the main condition for passing on a multilane highway, so you confirm the lane you will use is open before you move over.
Why the other answers are wrong
- B. Pass only on the right. — The handbook says to pass on the left and return to the right lane; passing on the right is allowed only in the specific safe conditions it lists, so passing only on the right is not correct.
- C. Watch for oncoming traffic. — Watching for oncoming traffic is part of checking before a pass, but for a multilane highway the handbook's direct instruction is to make sure the passing lane itself is clear.
- D. There is no need to signal. — The handbook requires a left turn signal to alert drivers behind before passing and a right signal before returning to the right lane.
Remember it
Clear lane first, signal, then pass on the left.