Multiple Choice Questions on Mining
41- Define Environmental Management Plan (EMP)
(A) An EMP is a site-specific plan developed only to ensure that all necessary measures are identified and implemented in order to protect forest.
(B) An EMP is a site-specific plan only to ensure that all necessary measures are taken and to protect water.
(C) An EMP is a site-specific plan developed to ensure that all necessary measures are identified and implemented in order to protect the environment and comply with environmental legislation.
(D) An EMP is a site-specific plan developed only to protect the villages.
42- Refresher training is needed for
(A) New worker
(B) Worker already deployed
(C) Contract worker
(D) Mischievous worker
43- What should be the minimum clearance between drill hole and explosive cartridge while charging the hole.
(A) 2 mm
(B) 2.5 mm
(C) 4 mm
(D) 3 mm
44- Proximity warning device is to be fitted on as an additional safety feature.
(A) Excavators
(B) Water tankers
(C) Drilling equipment
(D) Dumpers/Tippers
45- Which of the following statement is correct
(A) Bench height is always equal to bench width
(B) Bench height is always greater than bench width
(C) Bench height is always less than bench width
(D) None of the above
46- In percussive drilling the rock is broken by following action
(A) Crushing
(B) Chipping
(C) Both (A) and (B)
(D) None of the above
47- Toe of a bench in opencast mine is
(A) Top of the bench
(B) Bottom of the bench
(C) Inclination of the bench
(D) Height of the bench
48- Cost of an accidents includes
(A) Direct and indirect cost to the employee and employer
(B) Loss in production revenue only
(C) Reduction of profit
(D) Charges of additional royalty
49- Following are the hazardous energy types used in mine if uncontrolled
(A) Solar and hydro energy
(B) Nuclear and solar energy
(C) Wind and hydro energy
(D) Mechanical and chemical energy
50- Productivity of dumper depends on
(A) Road profile
(B) Mobility of dumper
(C) Training of operator
(D) All of the above
51- Spacing is the distance between
(A) Free face to first row
(B) Two adjacent holes in same row
(C) First row and last row
(D) First row and 2nd row
52- Which of the following term is not related with opencast mines
(A) Toe
(B) Subgrade drilling
(C) Keps gear
(D) Backfilling
53- Which of the following is not used in opencast mine
(A) Drill machine
(B) Road grader
(C) Endless haulage
(D) Belt conveyor
54- Socket in blasting is related to
(A) Misfire short
(B) Safety fuse
(C) Detonator
(D) Part of blast hole remaining after being blasted
55- Productivity of shovel depends on
(A) Work cycle
(B) Type of material
(C) Operator’s skill
(D) All of the above
56- Which type of drilling, the tricone bit is used
(A) Percussive
(B) Rotary percussive
(C) Rotary
(D) Auger
57- The optimum number of dumpers allocated to a shovel depends on
(A) Size of the shovel
(B) The distance of the haul road
(C) (A) and (B) both are correct
(D) Tonnage to be handled
58- Accidents are just don’t happen but
(A) They are caused
(B) They are anticipated
(C) They occur as act of god
(D) They are due confidence of work
59- Which of the following is not related to Dragline
(A) Hoist
(B) Rope
(C) Boom
(D) Crowd
60- Core recovery depends on
(A) Strength of Rock
(B) Fracture present in the rock
(C) Type of Rock
(D) All of the above
ANSWERS:
41-(C), 42-(B), 43-(D), 44-(D), 45-(D), 46-(B), 47-(B), 48-(A), 49-(D), 50-(D), 51-(B), 52-(C), 53-(C), 54-(D), 55-(D), 56-(C), 57-(B), 58-(A), 59-(D), 60-(D)