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SURVEY FREE OBJECTIVES

Surveying | MCQ – 07 | 20 MCQs

Posted on March 13, 2023March 12, 2023 By Civil Vedant

Q.1) The instrument attached to the wheel of a vehicle to measure the distance traveled is :

A) Pedometer

B) Odometer

C) Pass meter

D) Speedometer

Answer

Option (B)

Explanation :

Pedometer : Device used to count number of steps.

Odometer : Device used to measure distance travelled by a vehicle.

Speedometer : It is gauge used to measure speed of a vehicle.

Q.2) Which of the following types of the survey is NOT based on the object of survey?

A) Military survey

B) Engineering survey

C) Geological survey

D) Astronomical survey

Answer

Option (D)

Explanation :

An Astronomical survey is a general map or image of a regain of the sky which takes a specific observational target.

Q.3) A map having a scale of 1 cm = 3 km, is represented as a RF as : 

A) 1 : 3000

B) 1 : 30000

C) 1 : 300000

D) 1 : 3000000

Answer

Option (C)

Explanation :

Scale : 1 cm = 3 km

RF = 1 cm / 3 km = 1 / 3 x 1000 x 100

RF = 1 / 300000

hence, RF = 1 : 300000

Q.4) Surveys that are carried out to depict mountains, rivers, water bodies, wooden areas and other cultural details are known as :

A) Topographical surveys

B) Cadastral surveys

C) City surveys

D) Plane surveys

Answer

Option (A)

Explanation :

Topographical Surveys: Topographical surveys are a type of survey that captures and maps the physical features and characteristics of a piece of land, including its elevation, contours, vegetation, water bodies, and man-made structures. They are used to create accurate topographical maps and plans that can be used in engineering, construction, and land-use planning.

Cadastral Surveys : Cadastral survey is carried out to establish boundaries and legal ownership of land. It is used to create cadastral maps and plans that can be used for land registration, taxation, and other legal purposes.

City Survey : It is done to capture and map the physical features and characteristics of a city or urban area, including its buildings, roads, infrastructure, and natural features.

Plane Survey : Plane survey is done using planes or drones to capture large area of land. Typically, it is used create accurate maps and plans for large-scale projects, such as urban planning, environmental studies, and transportation infrastructure planning. In plane surveys, the curvature of earth is not taken.

Q.5) A Surveyor’s compass is used to determine :

A) Declination of a line

B) WCB of a line

C) Quadrantal bearing

D) Magnetic meridian

Answer

Option (C)

Explanation :

Nil.

Q.6) The lines passing through points at which the magnetic declination is equal at a given time are called :

A) Agonic lines

B) Isochrone lines

C) Isogonic lines

D) Isoclinic lines

Answer

Option (C)

Explanation :

Agonic lines : Lines joining the places of zero declination.

Isochrone lines : A line on a map that connects points where something happens or arrives at the same time.

Isogonic lines : Line joining the places of equal magnetic declination.

Isoclinic lines : Line sjoining the loci of the places having the same value of dip.

 

Q.7) If n is the number of sides, then the total sum of interior angles of  a closed traverse should be –

A) 2n + 4

B) n + 2

C) 2n – 4

D) 4n – 2

Answer

Option (C)

Explanation :

Total sum of interior angles of a closed traverse = (2n – 4) x 900.

Sum of exterior angles of a closed traverse = (2n + 4) x 900.

n= no. of sides.

Q.8) In leveling, the correction for combined curvature and refraction (in meters) is equal to : 

A) 0.0112 D2

B) 0.00785 D2

C) 0.0785 D2

D) 0.0673 D2

Answer
Option (D)Explanation :Correction for Curvature, Cc = – 0.07849 D2Correction for Refraction, CR = + 0.0112 D2Combined correction for refraction and curvature, C = – 0.06728 D2

Q.9) The imaginary line joining the center of diaphragm and the optical centre of the objective of a telescope is called : 

A) Line of collimation

B) Axis of telescope

C) Line of sight

D) None of the above

Answer

Option (A)

Explanation :

Nil.

Q.10) Which of the following types of levelling cannot be done with a dumpy level?

A) Reciprocal levelling

B) Differential levelling

C) Profile levelling

D) Trigonometric levelling

Answer

Option (D)

Explanation :

Nil.

Q.11) The vertical distance between two adjacent contours is called : 

A) Vertical equivalent

B) Contour gradient

C) Contour interval

D) None of the above

Answer

Option (C)

Explanation :

Nil.

Q.12) Which of the following technique is used for levelling across a river?

A) Trigonometric levelling

B) Reciprocal levelling

C) Cross levelling

D) Fly levelling

Answer

Option (B)

Explanation :

Reciprocal leveling is a surveying technique used to determine the difference in elevation between two points by measuring the height difference between two points in both directions, and then taking the average of the two readings.

It is done between two points widely separated in which observations are made in both directions to eliminate the effects of curvature of earth and atmospheric refraction. It is also used in geodetic surveys to establish accurate height benchmarks for mapping and other applications.

Q.13) Which of the following is carried out by the two theodolite method?

A) Tacheometric survey

B) Geodetic survey

C) Circular curve ranging

D) Astronomical survey

Answer

Option (C)

Explanation :

Nil.

Q.14) Theodolite is an instrument used to measure_____.

A) Vertical distance

B) Vertical angle

C) Horizontal angle

D) Both Horizontal and Vertical angle

Answer

Option (D)

Explanation :

Theodolite is used for measuring both horizontal and verticle angles.

Q.15) In aerial photogrammetry, the longitudinal overlap between two consecutive photographs is kept between ________.

A) 50% and 80%

B) 70% and 90%

C) 40% and 60%

D) 55% and 65%

Answer

Option (C)

Explanation :

Nil.

Q.16) The earthquake which occur deep inside earth around 600 km depth is known as :

A) Volcanic earthquake

B) Tectonic earthquake

C) Plutonic earthquake

D) Inner earthquake

Answer

Option (C)

Explanation :

Plutonic earthquake occur deep inside earth around 600 km.

Tectonic earthquake occur inside earth at shallow depth due to movement of tectonic plates and the consequences are observed on the surface of earth.

Q.17) Cross staff is an instrument used for _____.

A) Measuring approximate horizontal angles

B) Setting out right angles

C) Measuring bearing of line

D) None of the above

Answer

Option (B)

Explanation :

Instruments use for setting right angles are :

  • Cross staff
  • Optical square
  • Prism square
  • Site square

Q.18) The horizontal angle between the true meridian and the magnetic meridian at the time of observation is known as :

A) Bearing angle

B) Dip

C) Magnetic bearing

D) Magnetic declination

Answer

Option (D)

Explanation :

Nil.

Q.19) While doing the leveling process on a steep slope, the instrument should preferably be set up successively along a :

A) Zig-Zag path

B) Triangular path

C) Curved path

D) Straight path

Answer

Option (A)

Explanation :

Nil.

Q.20) An alidade in which one edge is bevelled is called as :

A) Telescopic edge

B) Soft edge

C) Fiducial edge

D) Swivel edge

Answer

Option (C)

Explanation :

Nil.

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