Mn:mining Engineering Worksheet - 2013 Page 10
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152013
MINING ENGG. –MN
Q.41
Four psychrometric processes P, Q, R and S are shown in the psychrometric chart below.
P
Q
R
These processes respectively represent
(A) dehumidification, humidification, sensible heating, sensible cooling
(B) sensible heating, humidification, dehumidification, sensible cooling
(C) dehumidification, sensible heating, sensible cooling, humidification
(D) humidification, sensible heating, dehumidification, sensible cooling
Q.42
Given the following differential equation
7
12
0
the general solution is
(A)
(B)
(C)
(D)
Q.43
Given the following,
Mining method
Technique
P
Thick seam extraction
1
Double unit face
Q Bord and pillar extraction
2
Jet cutting
R Longwall face development
3
Inclined slicing
S
Hydraulic mining
4
Half moon method
the correct match is
(A) P-3, Q-4, R-2, S-1
(B) P-1, Q-4, R-2, S-3
(C) P-3, Q-2, R-1, S-4
(D) P-3, Q-4, R-1, S-2
Q.44
Given the following,
Excavating/loading machine
Transportation scheme
P
Bucket Wheel Excavator
1
Mine tub
Q Continuous Miner
2
Armoured flexible chain conveyor
R Shearer
3
Shiftable Conveyor
S
Load Haul Dumper
4
Shuttle car
the correct match is
(A) P-3, Q-2, R-4, S-1
(B) P-3, Q-4, R-2, S-1
(C) P-3, Q-2, R-1, S-4
(D) P-1, Q-4, R-3, S-2
MN
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