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1742016 Related Question Answers
6. The line passing through the optical centre of the objective traversing the eye piece and entering the eye is known as :
line of sight line of collimation optical centre of a lens axis of the telescope
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7. The first sight taken on a levelling staff held at a point of known elevation is called :
F.S. B.S H.I I.S
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8. The ’scale on which three dimensions can be measured known as :
Chord scale Plain scale Diagonal scale None of the above
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9. A triangle is said to be well conditioned if none of the angles is less than :
90° 60° 45° 30°
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10. A line joining some fixed points on the main survey lines:
Tie line Check line Base line None of the above
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12. The vertical distance between any two consecutive contours is called :
vertical equivalent horizontal equivalent contour interval contour gradient
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13. If R.L. of a B.M. is 200.000 m, back sight is 1.525 m and fore sight is 3.285 m. R.L. of the forward station is :
201.700 m 201.525 m 204.810 m 198.240 m
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14. Rocks formed by cooling of magma is :
Metamorphic rocks Igneous rocks Sedimentary rocks None of the above
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15. Slate in the form of tiles is used :
for paving as road metal as an excellent roof covering material none of the above
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17. Heaviness of a stone is indicated by its:
Specific gravity Resistance to abrasive force To withstand stresses due to vibrations Resistance to compressive force
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19. The heating of lime stone to redness without contact with air or in absence of air is known
oxidation burning carbonisation calcination
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20. The constituent which makes the brick earth plastic and tends the brick to hardness :
Silica Clay Lime Iron oxide
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23. The chemical reaction between cement and wateris called:
consistency soundness hydration setting timesetting time
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24. The soundness of cement is tested by :
Vicat’s apparatus Sieve analysis Slumptest Le-Chatelier apparatus
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25. The specific surface of a Rood portland cement should not be less than :
3200 cm2/gm 2250 cm2 /gm 1100cm2/gm 500cm2/gm
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