Question 1

The horizontal angle between the true meridian and a survey line is called

Accepted Answer

A)  magnetic bearing
B)  azimuth
C)  dip
D)  magnetic declinationE) B) and D)
F) A) and D)

Question 2

The correction to be applied to each 30°m chain for a line measured along a slope of ? is

Accepted Answer

A)  30°(1 - sin ?) 
B)  30°(1 - cos ?) 
C)  30°(1 - tan ?) 
D)  30°(1 - cot ?) E) B) and C)
F) A) and D)

Question 3

The contour interval depends upon the

Accepted Answer

A)  nature of the ground
B)  scale of map
C)  purpose and extent of survey
D)  all of theseE) A) and B)
F) A) and C) D

Question 4

The building is an example of obstacle in which chaining and vision are both obstructed.

Accepted Answer

A)  Correct
B)  IncorrectC) A) and B)
D) undefined

Question 5

The line joining the points having the same elevation above the datum surface, is called a

Accepted Answer

A)  contour surface
B)  contour line
C)  contour interval
D)  dontour gradientE) None of the above
F) A) and C)

Question 6

An angle measured clockwise from the proceeding survey line to the following survey line is called

Accepted Answer

A)  direct angle
B)  vertical angle
C)  horizontal angle
D)  deflection angleE) A) and B)
F) A) and C)

Question 7

In a well conditioned triangle, no angle should be less than

Accepted Answer

A)  30°
B)  40°
C)  50°
D)  60°E) A) and D)
F) B) and C) A

Question 8

The working from whole to the part is done in surveying in order to ensure that

Accepted Answer

A)  survey work is completed more quickly
B)  number of errors is minimum
C)  plotting is done more quickly
D)  errors and mistakes of one portion do not affect the remaining portionE) B) and C)
F) B) and D) D

Question 9

The accuracy in laying down the perpendicular offsets and in measuring them depends upon

Accepted Answer

A)  scale of plotting
B)  length of offset
C)  importance of the object
D)  all of theseE) B) and C)
F) A) and C)

Question 10

If a chain is used at a temperature at which it was calibrated, the error in measured length is positive.

Accepted Answer

A)  equal to
B)  lower than
C)  higher thanD) A) and C)
E) A) and B)

Question 11

The image formed by the objective in the plane of cross hairs is

Accepted Answer

A)  real and straight
B)  real and inverted
C)  virtual and straight
D)  virtual and invertedE) B) and D)
F) A) and C)

Question 12

The principle of tacheometry is used

Accepted Answer

A)  for locating contours
B)  on hydrographic surveys
C)  for filling in detail in topographic surveys
D)  all of theseE) A) and B)
F) A) and C)

Question 13

When the angular and linear measurements are equally precise in traversing, the balancing of a traverse is done by

Accepted Answer

A)  transit rule
B)  empirical rule
C)  Bowditch's rule
D)  any one of theseE) B) and D)
F) B) and C)

Question 14

The diurnal variation of the magnetic needle is

Accepted Answer

A)  more
B)  lessC) A) and B)
D) undefined

Question 15

The vertical distance between any two consecutive contours is called

Accepted Answer

A)  vertical equivalent
B)  horizontal equivalent
C)  contour interval
D)  contour gradientE) None of the above
F) All of the above

Question 16

The distance by which the last point of the traverse falls short to coincide with the starting point is called the closing error.

Accepted Answer

A)  Right
B)  WrongC) A) and B)
D) undefined

Question 17

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

Accepted Answer

A)  10 mm
B)  30°mm
C)  50°mm
D)  100 mmE) None of the above
F) A) and D)

Question 18

When the measured length is less than the actual length, the error is known as

Accepted Answer

A)  positive error
B)  negative error
C)  compensating error
D)  instrumental errorE) A) and D)
F) B) and C)

Question 19

In levelling, the correction for curvature (in metres)  is equal, where D = Distance from the level to the staff reading in kilometres.

Accepted Answer

A)  0.00785 D2
B)  0.0785 D2
C)  0.0112 D2
D)  0.0673 D2E) B) and D)
F) B) and C)

Question 20

The points on a contour gradient will have the same elevation.

Accepted Answer

A) True 
 B)False

Exam 16: Surveying Terminology: Contour Intervals, Tacheometry, Magnetic Variation

The horizontal angle between the true meridian and a survey line is called

Correct AnswerverifiedShow Answer

The correction to be applied to each 30°m chain for a line measured along a slope of ? is

Correct AnswerverifiedShow Answer

The contour interval depends upon the

Correct AnswerverifiedD

The building is an example of obstacle in which chaining and vision are both obstructed.

Correct AnswerverifiedShow Answer

The line joining the points having the same elevation above the datum surface, is called a

Correct AnswerverifiedShow Answer

An angle measured clockwise from the proceeding survey line to the following survey line is called

Correct AnswerverifiedShow Answer

In a well conditioned triangle, no angle should be less than

Correct AnswerverifiedA

The working from whole to the part is done in surveying in order to ensure that

Correct AnswerverifiedD

The accuracy in laying down the perpendicular offsets and in measuring them depends upon

Correct AnswerverifiedShow Answer

If a chain is used at a temperature at which it was calibrated, the error in measured length is positive.

Correct AnswerverifiedShow Answer

The image formed by the objective in the plane of cross hairs is

Correct AnswerverifiedShow Answer

The principle of tacheometry is used

Correct AnswerverifiedShow Answer

When the angular and linear measurements are equally precise in traversing, the balancing of a traverse is done by

Correct AnswerverifiedShow Answer

The diurnal variation of the magnetic needle is

Correct AnswerverifiedShow Answer

The vertical distance between any two consecutive contours is called

Correct AnswerverifiedShow Answer

The distance by which the last point of the traverse falls short to coincide with the starting point is called the closing error.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When the measured length is less than the actual length, the error is known as

Correct AnswerverifiedShow Answer

In levelling, the correction for curvature (in metres) is equal, where D = Distance from the level to the staff reading in kilometres.

Correct AnswerverifiedShow Answer

The points on a contour gradient will have the same elevation.

Correct AnswerverifiedShow Answer

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