Surveying MCQ Questions & Answers

51

Benchmark is established by

A) hypsometry B) barometric levelling C) spirit levelling D) trigonometrical levelling

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Answer & Solution

Answer: Option C

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52

The normal longitudinal overlap is generally kept

A) 50 % B) 60 % C) 70 % D) 75 %

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Answer & Solution

Answer: Option B

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53

The difference of parallax for a given difference in elevation is independent of

A) Focal length of the camera B) Overall size of the photo graphs C) Percentage of overlap D) All the above

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Answer & Solution

Answer: Option D

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54

If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is

A) 0.1 B) 0.4 C) 0.6 D) 1.33

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Answer & Solution

Answer: Option B

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55

Latitude of a place is the angular distance from

A) Greenwich to the place B) Equator to the poles C) Equator to the nearer pole D) None of these

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Answer & Solution

Answer: Option D

Solution:

Latitude is the angular distance north or south of the equator. It is measured from the equator (0 degrees latitude) to the poles (90 degrees latitude north or south).

Let's analyze each option:

Option A: "Greenwich to the place" - This is incorrect because Greenwich is associated with longitude (prime meridian), not latitude.

Option B: "Equator to the poles" - This is partially correct in describing latitude, but the specific measurement is from the equator to the poles, not just "to the poles."

Option C: "Equator to the nearer pole" - This is correct because latitude measures the angular distance from the equator to either the North Pole (90 degrees north) or the South Pole (90 degrees south), depending on the location.

Option D: "None of these" - This is incorrect as Option C accurately describes the angular distance that latitude measures.

Therefore, the correct answer is Option C: Equator to the nearer pole.

56

If $$\alpha $$, H, A and $$\delta $$ be the altitude, hour angle, azimuth and declination of a circumpolar star at its elongation, in latitude $$\lambda $$, the following relation holds good

A) $$\cos {\text{H}} = \frac{{\tan \lambda }}{{\tan \delta }}$$ B) $$\sin \alpha = \frac{{\sin \lambda }}{{\sin \delta }}$$ C) $$\sin {\text{A}} = \frac{{\cos \delta }}{{\cos \lambda }}$$ D) All the above

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Answer & Solution

Answer: Option D

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57

The latitude (λ) of a place and the altitude (α) of the pole are related by

A) λ = α B) λ = 90° - α C) λ = α - 90° D) λ = 180° - α

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Answer & Solution

Answer: Option A

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58

The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as

A) Isocenter B) Principal point C) Perspective centre D) Plumb line

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Answer & Solution

Answer: Option B

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59

Pick up the incorrect statement from the following. High oblique photographs

A) May have tilt up to 30° B) May include the image of the horizon C) May not include the image of the horizon D) None of these

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Answer & Solution

Answer: Option D

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60

Parallax bar measures

A) Parallax B) Height C) Parallax difference D) Height difference

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Answer & Solution

Answer: Option C

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Surveying MCQ Questions & Answers | Civil Engineering