MINING ENGINEERING

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

(ANSWERS ARE BELOW THE QUESTIONS)  

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Q1) 

Freshly exposed roof after blasting is effectively and quickly supported by..?

1)  Timber supports

2)  Roof bolts

3)  Safari supports

4)  Bars

 

Q2)

The phenomena of liftin up of the floor If the floor is weak is called..?

1)  Heave

2)  Creep

3)  Bending

4)  none of the above

 

Q3)

On account of the weight of the rocks the pressure arch is transmitted to abutment if the depth of coal seam is ....the length of the pressure?

1)  Equal

2)  Twice

3)  Thrice

4) Four times

Q4)

The load on a prop when upper member is begins to slide is called?

1)  Load bearing capacity

2)  Setting load

3)  Yeild load

4)  Limit load

Q5)

The load at which on axially loaded prop reaches its elastic limit or at which it begins to buckle is called?

1)  Load bearing capacity

2)  Setting load

3)  Yeild load

4)  Limit load

Q6)

In hydraulic oil the % of emulsion oil is?

1)  2

2)  3

3)  4

4)  5

Q7)

The number of props required to support one square metre of the roof area is?

1)  one

2)  two

3)  three

4)  prop density

Q8)

The max gap between two chock shield supports is..?

1)  250mm

2)  200mm

3)  150mm

4)  none of the above

Q9) 

In roof stiching the face should not be advanced more than ....m from the last tensioned rope?

1)  4m

2)  3m

3)  2.4m

4)  2m

Q10)

The anchorage support of the roof stiching is ?

1)  5 te

2)  7 te

3)  10te

4)  12 te

ANSWERS FOR ABOVE QUESTIONS 

Q1)  3   Q2)  1    Q3)  2     Q4)   3  Q5)  1     

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

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