0 Identify the WRONG statement. Pit bottom air lock – McqOptions

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1.	0 Identify the WRONG statement. Pit bottom air lock
A.	prevents the short circuiting of air when the flow is reversed in coal mines
B.	has at least three doors
C.	has at least one door that has provision for latching
D.	all doors are in principle designed to open towards high pressure side of the air
Answer» D. all doors are in principle designed to open towards high pressure side of the air

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