EOM1bits Paper 3

16.Bore hole deviation is .....deg for 30m?,

1,2,3,4,

17,Bore hole survey means..?,

1.Measurment of deviation,

2.Measurment of depth,

3.Measurment of time taken,

4.None of the above,

18,In etch method which acid is used to measure borehole deviation?,

1.sulfuric acid,

2.hydrocloric acid,

3.nitric acid,

4.Hydrofloric acid,

19,Bentonite chemical is used for ?,

1.sealing cracks,

2.preparing mud flush,

3.surveying bore hole deviation,

4.none of the above,

20,The improved technique of removal of core during drilling without raising the drill rods?,

1.Double tube core barrel,

2.X-ray drilling,

3.wireline drilling,s

4.ide coring,

Ans :

16.(2)  17.(1)  18.(4)  19.(2)   20.(3)