Question is ⇒ Back bearing of a line is equal to., Options are ⇒ (A) Fore bearing Â± 90Â°, (B) Fore bearing Â± 180Â°, (C) Fore bearing Â± 360Â°, (D) Fore bearing Â± 270Â°, (E) , Leave your comments or Download question paper.

Question is ⇒ Back bearing of a line is equal to., Options are ⇒ (A) Fore bearing Â± 90Â°, (B) Fore bearing Â± 180Â°, (C) Fore bearing Â± 360Â°, (D) Fore bearing Â± 270Â°, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Back bearing of a line is equal to.
A.	Fore bearing Â± 90Â° [Wrong Answer]
B.	Fore bearing Â± 180Â° [Correct Answer]
C.	Fore bearing Â± 360Â° [Wrong Answer]
D.	Fore bearing Â± 270Â° [Wrong Answer]
View Answer 29 -6 Explanation:- Answer : B Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

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⇒ Which of the following errors can be neutralised by setting the level midway between the two stations ?
error due to curvature only
error due to refraction only
error due to both curvature and re-fraction
none of the above

⇒ In the quadrantal bearing system, a whole circle bearing of 293° 30' can be expressed as
W23°30'N
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S113°30'N
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⇒ The radius of curvature of the arc of the bubble tube is generally kept.
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⇒ The first temporary adjustment of a prismatic compass is
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Focussing of the prism
Removing the parallax
Centring

⇒ Correction per chain length of 100 links along a slope of α radians, is.
100 Î±2
100 Î±
100 Î±3
100 Î±-1.

⇒ In chain surveying tie lines are primarily provided.
to check the accuracy of the survey
to take offsets for detail survey
to avoid long offsets from chain lines
to increase the number of chain lines.

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⇒ In case of reduction of levels by the height of instrument method,
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zero on back station
180Â° on back station
90Â°
270Â° on back station.

⇒ If the smallest division of a vernier is longer than the smallest division of its primary scale, the vernier is known as.
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double vernier
retrograde vernier
simple vernier.

⇒ In plane table survey, the method used for locating plane table station is
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cumulative, - 0.11 m
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⇒ Perpendicularity of an offset may be judged by eye, if the length of the offset is.
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⇒ Which of the following errors cannot be eliminated by taking both face observations ?
error due to horizontal axis not being perpendicular to the vertical axis
index error i.e. error due to imperfect adjustment of the vertical circle vernier
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⇒ Imaginary line passing through points having equal magnetic declination is termed as.
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agonic line
isoclinic line
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⇒ Closed contours, with higher value inwards, represent a
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hillock
plain surface
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⇒ Designation of a curve is made by :
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angle subtended by an arc of specified length
radius of the curve
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at the optical centre of the eye-piece
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the diameter of the object glass
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15 m and 20 m length
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Three
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