| 1. | A surface which is normal to the direction of gravity at all points, as indicated by a plumb line, is known as ? | |
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level surface
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datum surface
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vertical surface
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horizontal surface
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Report Question| 2. | If the fore bearing of a line is 36° 15', its back bearing will be ? | |
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143° 45'
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36° 15'
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216° 15'
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126° 15'
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| 3. | When the length of a chain along a slope of ? is (l), the correction for slope required is ? | |
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I sin² ?/2
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2l sin² ?/2
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I cos² ?/2
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2l cos² ?/2
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| 4. | When the magnetic declination is 5° 20' east, the magnetic bearing of the sun at noon will be ? | |
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185° 20'
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354° 40'
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174° 40'
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95° 20'
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| 5. | The object of introducing a transition curve at each end of the circular curve is ? | |
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to provide a satisfactory means of obtaining a gradual increase of super-elevation from zero on the tangent point to the specified amount on the main circular curve
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to accomplish gradually the transition from the tangent to the circular curve and from the circular curve to the tangent
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to obtain a gradual increase of curvature from zero at the tangent point to the specified quantity at the junction of the transition curve with the circular curve
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all of the above
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| 6. | In levelling, the correction for curvature (in metres) is equal ? | |
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0.0785 D²
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0.00785 D²
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0.0673 D²
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0.0112 D²
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| 7. | The length of a traverse line (L) may be obtained by ? | |
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L= root[(Latitude)² x (Departure)²]
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L=Departure x cosecant of reduced bearing
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L= Latitude x secant of reduced bearing
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any one of the above
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| 8. | The amount of super-elevation on railways is equal to ? | |
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gv²/GR
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Gv²/gR
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gR/Gv²
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GR/gv²
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| 9. | The deflection angle may be directly obtained by setting the instrument to read.................on back station ? | |
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0°
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90?
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270?
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180°
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| 10. | The magnetic bearing of a line is S 35° 30' E and the magnetic declination is 4° 10' east. The true bearing of a line will be ? | |
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S31° 30' E
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S31° 30' W
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S39° 50' W
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S39° 50' E
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