Respirable Coal Mine Dust Certification Exam 3
Taken from the 2014 MSHA Instruction Guide (IG) 100


Progress Indicator:
Question 1 of 20

1.  Despite the constant-flow feature on approved gravimetric respirable coal mine dust sampling pumps, the _________ of those pumps must still be checked during the second and last hour of sampling by a certified person (sampling).

Choices:
  1. battery voltage
  2. hose length
  3. permissibility features
  4. flow rate


See more about these products


See the BioPak 240R on the web  External Link Icon Download the BioPak 240R Brochure


  Rescue Contests     Pop Quizzes     Mine Disasters   •  USMRA Membership     Links Library     Training Repository     Contact