MINING ENGINEERING

WELCOME TO  MINING ENGINEERING 

HERE THE QUESTIONS FOR YOU MINING ENGINEERS   (Q1  to Q10) AND 

(ANSWERS ARE BELOW THE QUESTIONS)  

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Q1) 

For testing a speciman in laboratory the length:dia ratio should be..?

1)  more than 1:2

2)  more than 2:1

3)  less than 2:1

4)  less than 1:2

 

Q2)

The best method of mining for controling the subsidence is..?

1)  Bord and piller

2)  Longwall with stowing

3)  Longwall with caving

4)  Hormonic mining

 

Q3)

Compressive strength of coal is?

1)  13.5 kg/sq.mm

2)  2.25 kg/sq.mm

3)  2.25 kg/sq.cm

4)  13.5 kg/sq.cm

Q4)

Crushing strength of sand stone is?

1)  13.5 kg/sq.mm

2)  2.25 kg/sq.mm

3)  2.25 kg/sq.cm

4)  13.5 kg/sq.cm 

Q5)

By tappering the prop at the foot or top by providing a lid on the top of the prop.....could be obtained?

1)  max strength

2)  Yield

3)  max life of the prop

4)  none of the above

Q6)

The maximum height of the roof that can be tested by bamboo?

1)  2.5m

2)  3m

3)  1.5m

4)  3.5m 

Q7)

A timber prop is expected to support in area of about.....all round?

1)  1 - 2 m

2)  0.1 - 0.3 m

3)  0.2 - 0.4 m

4)  0.4 - 1 m 

Q8)

The timber prop available max height upto..?

1)  3m

2)  6m

3)  9m

4)  11m

Q9) 

For equal resistance to crushing and bending the prop should have dia ..?

1)  1/3 of the length

2)  1/6 of the length

3)  1/9 of the length

4) 1/12 of the length

Q10)

If the prop has to be set on looseground it should be placed on a flat base piece having thickness not less than..?

1)  2 cm

2)  3 cm

3)  4 cm

4)  5 cm

ANSWERS FOR ABOVE QUESTIONS 

Q1)  2   Q2)  4    Q3)  2     Q4)   1   Q5)  2     

Q6)  1   Q7)  4    Q8)  3  Q9)   4   Q10)  4 

CLICK HERE FOR COAL INDIA GENERAL KNOWLEDGE QUESTION PAPER 2019

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click here for 2020 NTPC NOTIFICATION 24 POSTS

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WELLCOME