Vehicle Rescue and Extrication No. 2 Questions taken from Jones & Bartlett Fundamentals of Fire Fighter Skills (3rd Edition) Progress Indicator: Question 2 of 15 2.  __________ LIMIT(S) YOUR CONCENTRATION, PERCEPTION, JUDGMENT, AND MEMORY. Choices: Only a blood alcohol level greater than the legal limit Alcohol does not Even the smallest amount of alcohol Only a blood alcohol level greater than .05