Mine Rules and Regulations MCQs Questions & Answers | Mining Engineering Page-4 section-1

31.
DGMS specification for deciding length of bolts is-

A. at least $$\frac{1}{2}$$ of gallery width

B. at least $$\frac{1}{3}$$ of gallery width

C. less than 1.5m

D. equal to gallery width

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32.
How many fatal accidents were due to Dumpers in opencast coal mines as per Circular 3/2013?

A. 18

B. 38

C. 58

D. 69

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33.
Height of the rib of the roof bolt is kept at 2.5% - 5% of the core diameter of bolt as stated in which circular?

A. 11/1959

B. 5/2003

C. 9/2002

D. 11/2009

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34.
The test report of finding out concentration of all elements with respect to chemical additives for dust suppression should conform to the limits prescribed in which Act?

A. ITRC

B. NABL

C. ISNT

D. RCRA

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35.
As per Circular 7/2002 who is supposed to assess the requirement of support needed?

A. Mining Sirdar

B. Overman

C. Sr. Overman

D. Undermanager

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36.
As stated in circular in favour of pillar extraction, the area of roof exposure at any working place at any time shall not exceed "A" sq m. What is the value of A?

A. 45 sq m

B. 60 sq m

C. 75 sq m

D. 90 sq m

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37.
As per Circular which of the following flaw detectors is required to have been owned by the manufacturer in connection with CSG?

A. ASTM detector

B. ultrasonic flaw detector

C. Magnetic particle flaw detector

D. double braided wear detector

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38.
Issuance of 'cold work permit' is made mandatory in which safety conference?

A. 6^th

B. 7^th

C. 10^th

D. 11^th

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39.
Development and implementation of portable instrument for detecting hidden slips in roof of coal mines should be given priority. In which national safety conference it was recommended?

A. 7^th

B. 8^th

C. 9^th

D. 10^th

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40.
The periodicity of testing of at least chief properties shall be conducted after every how many years?

A. 2 years

B. 3 years

C. 4 years

D. 5 years

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Mine Rules and Regulations MCQs Questions & Answers | Mining Engineering

31. DGMS specification for deciding length of bolts is-

Answer & Solution

32. How many fatal accidents were due to Dumpers in opencast coal mines as per Circular 3/2013?

Answer & Solution

33. Height of the rib of the roof bolt is kept at 2.5% - 5% of the core diameter of bolt as stated in which circular?

Answer & Solution

34. The test report of finding out concentration of all elements with respect to chemical additives for dust suppression should conform to the limits prescribed in which Act?

Answer & Solution

35. As per Circular 7/2002 who is supposed to assess the requirement of support needed?

Answer & Solution

36. As stated in circular in favour of pillar extraction, the area of roof exposure at any working place at any time shall not exceed "A" sq m. What is the value of A?

Answer & Solution

37. As per Circular which of the following flaw detectors is required to have been owned by the manufacturer in connection with CSG?

Answer & Solution

38. Issuance of 'cold work permit' is made mandatory in which safety conference?

Answer & Solution

39. Development and implementation of portable instrument for detecting hidden slips in roof of coal mines should be given priority. In which national safety conference it was recommended?

Answer & Solution

40. The periodicity of testing of at least chief properties shall be conducted after every how many years?

Answer & Solution

31.
DGMS specification for deciding length of bolts is-

32.
How many fatal accidents were due to Dumpers in opencast coal mines as per Circular 3/2013?

33.
Height of the rib of the roof bolt is kept at 2.5% - 5% of the core diameter of bolt as stated in which circular?

34.
The test report of finding out concentration of all elements with respect to chemical additives for dust suppression should conform to the limits prescribed in which Act?

35.
As per Circular 7/2002 who is supposed to assess the requirement of support needed?

36.
As stated in circular in favour of pillar extraction, the area of roof exposure at any working place at any time shall not exceed "A" sq m. What is the value of A?

37.
As per Circular which of the following flaw detectors is required to have been owned by the manufacturer in connection with CSG?

38.
Issuance of 'cold work permit' is made mandatory in which safety conference?

39.
Development and implementation of portable instrument for detecting hidden slips in roof of coal mines should be given priority. In which national safety conference it was recommended?

40.
The periodicity of testing of at least chief properties shall be conducted after every how many years?