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This set of Surveying Multiple Choice Questions & Answers (MCQs) focuses on Surveying Set 15
Q1 | The contour interval depends upon the
- nature of the ground
- scale of map
- purpose and extent of survey
- all of these
Q2 | The difference is length between the arc and the subtended chord on the surface of the earth for a distance of 18.2 km is only
- 10 mm
- 30 mm
- 50 mm
- 100 mm
Q3 | The image formed by the objective in the plane of cross hairs is
- real and straight
- real and inverted
- virtual and straight
- virtual and inverted
Q4 | The vertical distance between any two consecutive contours is called
- vertical equivalent
- horizontal equivalent
- contour interval
- contour gradient
Q5 | The principle of tacheometry is used
- for locating contours
- on hydrographic surveys
- for filling in detail in topographic surveys
- all of these
Q6 | The correction to be applied to each 30 m chain for a line measured along a slope of ? is
- 30 (1 - sin ?)
- 30 (1 - cos ?)
- 30 (1 - tan ?)
- 30 (1 - cot ?)
Q7 | The accuracy in laying down the perpendicular offsets and in measuring them depends upon
- scale of plotting
- length of offset
- importance of the object
- all of these
Q8 | The diurnal variation of the magnetic needle is
- more
- less
Q9 | The horizontal angle between the true meridian and a survey line is called
- magnetic bearing
- azimuth
- dip
- magnetic declination
Q10 | When the angular and linear measurements are equally precise in traversing, the balancing of a traverse is done by
- transit rule
- empirical rule
- Bowditch's rule
- any one of these
Q11 | When the measured length is less than the actual length, the error is known as
- positive error
- negative error
- compensating error
- instrumental error
Q12 | A branch of surveying in which the horizontal and vertical distances of points are obtained by instrumental observations, is known as
- chain surveying
- plane table surveying
- tacheometric surveying
- hydrographic surveying
Q13 | In a well conditioned triangle, no angle should be less than
- 30?
- 40?
- 50?
- 60?
Q14 | In levelling, the correction for curvature (in metres) is equal, where D = Distance from the level to the staff reading in kilometres.
- 0.00785 D2
- 0.0785 D2
- 0.0112 D2
- 0.0673 D2
Q15 | In order to fix up the directions of the survey lines in the compass survey, the horizontal angle between the survey line and a fixed line of reference is measured. This fixed line reference is the magnetic meridian.
- TRUE
- FALSE
Q16 | The distance by which the last point of the traverse falls short to coincide with the starting point is called the closing error.
- Right
- Wrong
Q17 | In levelling, the effect of refraction varies with the atmospheric conditions
- Yes
- No
Q18 | If a chain is used at a temperature at which it was calibrated, the error in measured length is positive.
- equal to
- lower than
- higher than
Q19 | In plane table surveying, field work is recorded in a field book to be plotted afterwards.
- Agree
- Disagree
Q20 | The points on a contour gradient will have the same elevation.
- TRUE
- FALSE
Q21 | The line joining the points having the same elevation above the datum surface, is called a
- contour surface
- contour line
- contour interval
- dontour gradient
Q22 | The working from whole to the part is done in surveying in order to ensure that
- survey work is completed more quickly
- number of errors is minimum
- plotting is done more quickly
- errors and mistakes of one portion do not affect the remaining portion
Q23 | The building is an example of obstacle in which chaining and vision are both obstructed.
- Correct
- Incorrect
Q24 | An angle measured clockwise from the proceeding survey line to the following survey line is called
- direct angle
- vertical angle
- horizontal angle
- deflection angle
Q25 | The capacity of telescope of producing a sharp image is called its
- definition
- brightness
- sensitivity
- magnification