JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech I SURVEYING Previous Question Paper (September – 2023 - R22)
Note: This question paper contains two parts A and B. Part-A is a compulsory question. Part-B consists of ten questions (numbered from 2 to 11) carrying 10 marks each. The student should answer five questions from Part-B, selecting one from each unit.
Part A
Define local attraction and causes for local attraction.
Answer
Local attraction is the phenomenon where the magnetic needle is deflected from its true magnetic meridian due to the presence of external magnetic substances. Causes include proximity to iron ore deposits, steel structures, electric cables, railway lines, or metallic objects like keys and watches carried by the surveyor.
Define magnetic Dip in compass surveying.
Answer
Magnetic dip (or inclination) is the vertical angle that a freely suspended magnetic needle makes with the horizontal plane at any point on the Earth's surface.
What are the uses of contours?
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Write the formula to calculate volume using Meridian distance method.
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Define axis of level tube in theodolite.
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List the method of traversing with theodolite?
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Define Tacheometric survey.
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What are the elements of a simple circular curve?
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Write brief note on Geographical Information System.
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What are the demerits of a total station?
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Part B
A 20 m chain was found to be 15 cm too long after chaining 1600 m. It was found to be 30 cm too long at the end of day’s work after chaining a total distance of 3200 m. Determine the correct distance if the chain was correct before the commencement of the work.
As stated in the question description.
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Explain difference between plane surveying and Geodetic surveying.
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The bearings of the lines of a closed traverse are 290°30'; 50°30'; 196°0'; 175°30'; 112°0'; 30°0'. Calculate the included angles and the angular error.
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Define surveying. What are the principles of surveying? Explain them briefly.
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The following consecutive readings were taken with a level and 5 meter leveling staff on continuously sloping ground on a common interval of 20 meters: 0.385; 1.030; 1.925; 2.825; 3.730; 4.685; 0.625; 2.005; 3.110; 4.485. The R.L of the first point was 208.125 m. Rule out a page of level book and enter the readings. Calculate the R.L.'S of the points by Rise and Fall method.
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In order to obtain area of a plot, a series of perpendicular offsets 2.2m, 3.0m, 1.65m, 2.46m, 2.0m, 2.25m and 1.68m were laid from a survey line to an irregular boundary at regular intervals of 5m. Determine the desired area using (a) Trapezoidal rule (b) Simpson’s Rule.
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Explain how you would use the Transit Theodolite in the repetition method to measure the horizontal angle.
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What is a closed traverse? What are the two checks applicable in this case?
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What are face left and face right observations? Why is it necessary to take both these observations?
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Discuss the procedure of measuring horizontal angle with a theodolite.
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Explain the principle of Tacheometry.
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Explain the method of setting out a simple curve by two theodolites.
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Explain the difference between tangential and stadia Tacheometry. How will you determine the stadia constants?
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How are curves classified? Explain the following terms in connection with curves (i) Vertex (ii) Arc length (iii) Long chord of the curve.
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Explain briefly the working principle of electronic theodolite.
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Explain briefly how GPS works to determine the position coordinates of a point.
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Explain briefly about the salient features of total station.
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Write briefly about the applications of Geographical Information System.
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