Question After an accident, flares should be used with caution because: Answers There may be spilled fuel on the ground that could ignite. Other drivers may not see the flares. Flares are expensive. Other drivers may get confused about what is happening. Explanation After an accident, spilled fuel and improper use of flares can result in a fire. This questions appears in the following tests: Connecticut Class B Knowledge Test District Of Columbia Class B Knowledge Test Illinois Class A Knowledge Test Illinois Class B Knowledge Test Illinois Double Massachusetts Class A Knowledge Test West Virginia Class A Knowledge Test