1. Which of the following is not a type of survey conducted?
a) Preliminary survey
b) Traffic survey
c) Reconnaissance survey
d) Transverse curve survey
Explanation: The types of surveys conducted are Traffic survey, Reconnaissance survey, Preliminary survey and Final location survey. After these surveys the construction of the new rail line is started.
2. What is the objective of Reconnaissance survey?
a) To make a contour map of the area.
b) To determine the technical feasibility of proposal
c) To determine rough cost of one or more alternatives to the new line
d) To determine the technical feasibility as well as the best possible alternatives available
Explanation: Reconnaissance survey is done to check if the execution of the work is possible technically and economically. It also includes a rough estimate of one or more alternatives available to the new line.
3. The Reconnaissance survey is done based on _____ and other already available data.
a) traffic flow of area
b) estimated construction cost
c) contoured survey maps
d) population of that area
Explanation: In this survey contoured maps are studied and different alternatives to the new line are determined. It is generally done with the data which is readily available.
4. What is the next step after the survey team studies the general topography of the country?
a) Collection of field data
b) Consulting government officials and local bodies
c) Cost Estimation
d) Laying down the rails
Explanation: Contoured maps of the area are studied to determine alternative alignments to the new line. Before starting its construction field data is collected by using various instruments. Based on this data the technical aspects of the new line are determined.
5. What is the use of prismatic compass in survey?
a) To measure weight of an object
b) To measure magnetic bearing of the alignment
c) To view the physical features
d) To determine magnetic lines of attraction
Explanation: Magnetic compass is used to determine the bearing of the alignment with respect to the north direction. Various technical aspects of the rail track are calculated based on the magnetic bearings.
6. What is the instrument ‘Abney level’ also called as?
a) Barometer
b) Theodolite
c) Clinometer
d) Aneroid Barometer
Explanation: Abney level is also called as hand level or Clinometer. It is used in survey to measure gradients or angles of slopes.
7. Which are the instruments used for Reconnaissance survey?
a) Prismatic compass, Binocular and Clinometer
b) Abney level and Aneroid Barometer
c) Only Prismatic compass is used
d) Clinometer, Binocular, Pedometer, Aneroid Barometer and Prismatic compass
Explanation: Pedometer is used to get an idea of the distance travelled while walking. Binocular is used to view the physical features and Aneroid Barometer is used to find relative heights of points. Prismatic compass and Clinometer are used for calculating magnetic bearing and gradient of slopes respectively.
8. Which of the following equipment is not a part of Modern Surveying Instruments and techniques?
a) Infrared Beam
b) Laser beam
c) Chain and Tape
d) Computers
Explanation: Chain and Tape were previously used for measurement. With advancement of technologies they are considered to be out dated.
9. What is the advantage of Modern Surveying Instruments and Techniques over old ones?
a) They are cheap
b) They give very accurate results
c) They are easy to operate
d) They have high power consumption
Explanation: Modern Techniques rely completely on digital instruments for surveying. This eliminates the possibility of human error, increases efficiency and gives more accurate results.
10. What is the full form of EDM instruments used for modern surveying?
a) Electronic Distance Measurement
b) Electromagnetic Distance Measurement
c) Electronic Diameter Measurement
d) Elastic Deformation Meter
Explanation: Electronic Distance Measurement instruments are very advance and versatile. They can measure Horizontal and Vertical distances rapidly and efficiently.