13 . You are driving on the roadway and there is an emergency vehicle using its siren and flashing lights directly behind you. You are in heavy traffic and cannot get out of its way. You should:
Stop where you are.
Blow your horn.
Force your way into traffic in the adjoining lane.
Keep moving slowly until you can get out of its way.
14 . You are stopped in a line of vehicles waiting at a stop sign. If there is no cross traffic after the vehicles ahead have passed through the intersection, you:
May proceed through the intersection without stopping again.
Must stop again at the stop sign or stop line before proceeding.
May slowly roll past the stop sign.
May follow the vehicle directly ahead of you without stopping.
15 . The act of turning your head and checking your blind spot before changing lanes, driving away from a curb, or merging your vehicle into traffic is: