During breakdown of haem, the methenyl bridge between the following two pyrrole rings is broken: (A) I and II (B) II and III (C) III and IV (D) IV and I

During breakdown of haem, the methenyl bridge between the following two pyrrole rings is broken: (A) I and II (B) II and III (C) III and IV (D) IV and I
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During periodic testing of an AT weld with 700 probe, a bunch of moving signals of less than 40% but more than 10% is observed in the head of weld, the joint will be. (i) Good joint.* (ii) DFWR (iii) DFWO (iv) OBSW

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For rolling mark 60 kg/Sail/X/2010 the first testing in the field after initial testing of rails in rail manufacturing plant, will be done. (i) After test free period of 25%. (ii) After passage of every 40 GMT traffic during test free period.* (iii) After passage of 200 GMT. (iv) On the basis of annual GMT of the section.

Description : For rolling mark 60 kg/Sail/X/2010 the first testing in the field after initial testing of rails in rail manufacturing plant, will be done. (i) After test free period of 25%. (ii) After passage of every 40 ... period.* (iii) After passage of 200 GMT. (iv) On the basis of annual GMT of the section.

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Last flag man is deputed at which distance from last detonator during protection of welding site . (i) 30 mts (ii) 50 mts (iii) 45 (iv) 60 mts

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Last Answer : (ii) Excess provision of height during alignment.

Defect of low joint is due to? (i) Excess height (ii) Early trimming of weld (iii) Early grinding of weld (iv) Nil/Less provision of height during alignment.

Description : Defect of low joint is due to? (i) Excess height (ii) Early trimming of weld (iii) Early grinding of weld (iv) Nil/Less provision of height during alignment.

Last Answer : (iv) Nil/Less provision of height during alignment.

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Last Answer : (i) Yes.*

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Description : Pressure of Oxygen during pre-heating shall be? (i) 4.0 – 5.0 kg/ sq cm (ii) 5.0 – 6.0 kg/ sq cm (iii) 6.0 – 7.0 kg/ sq cm (iv) 7.0 – 8.0 kg/ sq cm *

Last Answer : (iv) 7.0 – 8.0 kg/ sq cm *

ressure of LPG during pre-heating shall be? (i) 2.0 - 2.5 kg/ sq cm (ii) 2.0 - 2.5 kg/ sq cm (iii) 2.0 - 2.5 kg/ sq cm* (iv) 2.0 - 2.5 kg/ sq cm

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Min. breaking load of 52kg weld during transverse breaking load test is? (i) 90MT* (ii) 100 MT (iii) 110 MT (iv) 120 MT

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Last Answer : (i) Aluminium oxide (slag). *

During AT welding reaction is ? (i) Exothermic .* (ii) Endothermic (iii) No Reaction (iv) Heating

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