Opencast Mining MCQs Questions & Answers | Mining Engineering Page-5 section-1

41.
The angle which a plane joining the crest of the quarry which the toe of the bottom most bench makes from the borizontal.

A. Crest

B. Pit bottom

C. Ultimate slope angle

D. Cut

Answer & Solution Discuss in Board Save for Later

42.
In ultimate pit analysis the most widely used method is

A. Dynamic programming

B. Linear programming

C. Simulation

D. Heuristic technique

Answer & Solution Discuss in Board Save for Later

43.
Permanent and semi permanent machines always powered by . . . . . . . .

A. Diesel

B. Kerosine

C. Compressor

D. Electric

Answer & Solution Discuss in Board Save for Later

44.
The output of the shovel with 2 cubic meter bucket is cu.m per year.

A. 1.5 lac

B. 2.5 lac

C. 3.5 lac

D. 4.5 lac

Answer & Solution Discuss in Board Save for Later

45.
The following requirements of electric power supply system in surface mines are

A. Adequate capacity

B. Safe

C. Required voltage and frequency

D. Economical

E. All these

Answer & Solution Discuss in Board Save for Later

46.
Which motor improves power factor

A. Induction moter

B. Slip ring moter

C. Synchronous moter (over excited)

D. None

Answer & Solution Discuss in Board Save for Later

47.
The diameter and depth of blast holes are generally kept constant depending on . . . . . . . . of equipment.

A. Base

B. Size

C. Length

D. Highwall

Answer & Solution Discuss in Board Save for Later

48.
Machines using crawler chains are not allowed to cross public-roads of they posses.

A. Cleats of grouser plates

B. Smooth gruser plates

C. Plain plates without rubber

D. None

Answer & Solution Discuss in Board Save for Later

49.
Ripper is essentially of . . . . . . . . mounted.

A. Tyre

B. Crawler

C. Wheel

D. All

Answer & Solution Discuss in Board Save for Later

50.
C.S.R means

A. Company survey reportability

B. Corporate social responsibility

C. Central security reason

D. None

Answer & Solution Discuss in Board Save for Later

Opencast Mining MCQs Questions & Answers | Mining Engineering

41. The angle which a plane joining the crest of the quarry which the toe of the bottom most bench makes from the borizontal.

Answer & Solution

42. In ultimate pit analysis the most widely used method is

Answer & Solution

43. Permanent and semi permanent machines always powered by . . . . . . . .

Answer & Solution

44. The output of the shovel with 2 cubic meter bucket is cu.m per year.

Answer & Solution

45. The following requirements of electric power supply system in surface mines are

Answer & Solution

46. Which motor improves power factor

Answer & Solution

47. The diameter and depth of blast holes are generally kept constant depending on . . . . . . . . of equipment.

Answer & Solution

48. Machines using crawler chains are not allowed to cross public-roads of they posses.

Answer & Solution

49. Ripper is essentially of . . . . . . . . mounted.

Answer & Solution

50. C.S.R means

Answer & Solution

41.
The angle which a plane joining the crest of the quarry which the toe of the bottom most bench makes from the borizontal.

42.
In ultimate pit analysis the most widely used method is

43.
Permanent and semi permanent machines always powered by . . . . . . . .

44.
The output of the shovel with 2 cubic meter bucket is cu.m per year.

45.
The following requirements of electric power supply system in surface mines are

46.
Which motor improves power factor

47.
The diameter and depth of blast holes are generally kept constant depending on . . . . . . . . of equipment.

48.
Machines using crawler chains are not allowed to cross public-roads of they posses.

49.
Ripper is essentially of . . . . . . . . mounted.

50.
C.S.R means