2014 Technician Team Exam Taken from the 2014 Northern Regional Mine Rescue Contest (Drager BG4 Exam) held in Peek 'N Peek, NY Progress Indicator: Question 2 of 30 2.  What is the velocity of this display? Choices: 1,457 feet per minute 1,447 feet per minute 1,462 feet per minute 1,457 feet per minute