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MINING MATE RESTRICTED (METAL) EXAM DEC 2021

1) The periods of work for any adult shall be so arranged that, along with his interval of rest, they shall not be spread over for more than _____ hours in a day. 

a) 10

b) 12

c) 9

d) 8

e) 10

2) A building or premises where explosive & detonators are stores is called 

a) Shelter 

b) Magazine 

c) Store 

d) House 

e) Building 

3) VOD in relation to blasting, stands for 

a) Variation of detonators 

b) Value of detonators 

c) Velocity of detonators 

d) Velocity of detonators 

e) Value of detonation 

4) Objective of the drilling and blasting operation at surface mines is 

a) Reduction in overall mining cost 

b) Optimum fragmentation 

c) Minimum damage to the environment 

d) Both a & b 

e) a, b, c

5) Explosives shall be transported to the site of blast not more than ____ before the commencement of charging of holes 

a) 1 hour 

b) 1 and half hour 

c) Half an hour 

d) Two and half hours 

e) Three hours 

6) Every plan or section unless otherwise provided, be on scale having representative factor of _____ in case of mines having large opencast workings. 

a) 200:1 

b) 100:1

c) 1000:1

d) 2000:1

e) 5000:1

7) Gravimetric dust sampler works on the principles of ______

a) Sedimentation 

b) Filtration 

c) Gravitation 

d) Both a and c 

e) None of four 

8) Explosive shall be used in mine and that shall be provided by 

a) Manager 

b) Agent 

c) Owner 

d) Supplier 

e) Magazine incharge 

9) Service brake & parking brake test of heavy machineries should be done once at least in 

a) 1 month 

b) 2 weeks 

c) 15 days 

d) 14 days 

e) 7 days 

10) Elastic bandages are used ______

a) to allow circulation to a served limb 

b) when applying a splint 

c) to control the swelling and support injuries 

d) after removing splints 

e) to control bleeding

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