01-07-2018, 02:27 PM
Question paper and Answer key of GATE MN-Â Mining Engineering Examination held in 2016. Some Sample questions are given below
1. Jack hammer does NOT contain
(A) pawl and ratchet
(B) gear box
© rifle bar
(D) piston
2. Underground coal mines are in principle ventilated by exhausting system, so that
(A) spontaneous heating risk is reduced
(B) fumes can be quickly removed in case of an underground fire
© build-up of methane concentration is decreased
(D) cool and fresh intake air can enter underground
3. 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
© 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
Download the complete question paper and key from the links given below
1. Jack hammer does NOT contain
(A) pawl and ratchet
(B) gear box
© rifle bar
(D) piston
2. Underground coal mines are in principle ventilated by exhausting system, so that
(A) spontaneous heating risk is reduced
(B) fumes can be quickly removed in case of an underground fire
© build-up of methane concentration is decreased
(D) cool and fresh intake air can enter underground
3. 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
© 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
Download the complete question paper and key from the links given below