Question You should always perform a head check before: Answers Changing lanes. Merging onto a freeway. Passing another vehicle. All of the above. Explanation Motorcycles have blind spots just like any other vehicle, so you cannot rely on your mirrors to show all of your surroundings. Always turn your head to check your blind spot before changing lanes, merging onto a freeway, or passing. This questions appears in the following tests: Idaho Motorcycle Practice Test 25