WV Foreman Test – Ventilation Questions and 100% Verified Correct Answers

WV Foreman Test – Ventilation Questions and 100% Verified Correct Answers Where shall all main fans be installed? - Correct Answer On the Surface The main fan must be enclosed in what kind of housing? - Correct Answer Fireproof The fan or fans shall be kept in what kind of operation? - Correct Answer Continuous Operation When shall all employees be removed from the mine when the fan stops? - Correct Answer If the ventilation is not restored within 15 minutes What shall be done before persons return to the mine after ventilation is restored? - Correct Answer The mine shall be examined by a certified person When the fan stops and ventilation is restored within 15 minutes, what must be done? - Correct Answer The face regions and other places in the affected area shall be re-examined by a certified person How many openings are necessary to provide adequate ventilation? - Correct Answer At least 2 What is the maximum distance that mines may be developed underground before mechanically operated fans are required? - Correct Answer 200' How shall mine ventilation be obtained? - Correct Answer By the use of fans, mechanically operated