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Test: Compass Surveying & Theodolite - 2


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10 Questions MCQ Test GATE Civil Engineering (CE) 2023 Mock Test Series | Test: Compass Surveying & Theodolite - 2

Test: Compass Surveying & Theodolite - 2 for Civil Engineering (CE) 2022 is part of GATE Civil Engineering (CE) 2023 Mock Test Series preparation. The Test: Compass Surveying & Theodolite - 2 questions and answers have been prepared according to the Civil Engineering (CE) exam syllabus.The Test: Compass Surveying & Theodolite - 2 MCQs are made for Civil Engineering (CE) 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Compass Surveying & Theodolite - 2 below.
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Test: Compass Surveying & Theodolite - 2 - Question 1

If fore bearing of a line is S 49°52'E (assuming there is no local attraction), the back bearing of the line will be

Detailed Solution for Test: Compass Surveying & Theodolite - 2 - Question 1

If the fore bearing of a line is given as the quadrantal bearing, then back bearing is numerically equal to the fore bearing. However N changes to S and Exchanges to W and vice versa.

Test: Compass Surveying & Theodolite - 2 - Question 2

If the declination is 5°40'W, which one of the following magnetic bearing would represent the true bearing of S 25°20'E?

Detailed Solution for Test: Compass Surveying & Theodolite - 2 - Question 2

Note that negative (W) declination should be added to quadrantal bearing in second and fourth quadrant i.e. NθW or SθE and it should be subtracted from quadrantal bearing in first and third quadrant i.e., NθE and SθW. Reverse should be done for positive (E) declination.

True bearing = S 25° 20'E + 5°40'
= S 31° 0'E

Test: Compass Surveying & Theodolite - 2 - Question 3

The prismatic compass and surveyor’s compass

Test: Compass Surveying & Theodolite - 2 - Question 4

The following bearing were observed while traversing with a compass

Which stations were affected by local attraction?

Detailed Solution for Test: Compass Surveying & Theodolite - 2 - Question 4

As the difference between F.B. and B.B. of line AB is exactly 180°, stations A and B are free from local attraction which is not the case with line CD.
Hence stations C and D are affected by local attraction.

Test: Compass Surveying & Theodolite - 2 - Question 5

The multiplying constant of a theodolite is 

Test: Compass Surveying & Theodolite - 2 - Question 6

Theodolite is an instrument used for

Test: Compass Surveying & Theodolite - 2 - Question 7

Agonic line is the line joining points having

Test: Compass Surveying & Theodolite - 2 - Question 8

Which one of the following is carried out by two theodolite method?

Test: Compass Surveying & Theodolite - 2 - Question 9

If the forebearing of a line AB is 35° and that of line BC 15° then the included angle between the lines is

Detailed Solution for Test: Compass Surveying & Theodolite - 2 - Question 9


BB of AB = FB + 180°
= 35° + 180° = 215° 
∴ included angle between line,
AB and BC = 360° - 215° + 15° = 160°

Test: Compass Surveying & Theodolite - 2 - Question 10

What is the magnetic declination at a place if the magnetic bearing of the sun at noon is 184°

Detailed Solution for Test: Compass Surveying & Theodolite - 2 - Question 10

True bearing
= Magnetic bearing + Declination
∴ 180° = 184° + Declination
or Declination = -4° = 4°W

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