JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech I INTRODUCTION TO MINE SURVEYING Previous Question Paper (September - 2023 - R22)
Note: This question paper contains two parts A and B. Part-A for 10 marks, Part-B for 50 marks. Part-A is a compulsory question. Part-B consists of ten questions (numbered from 2 to 11) carrying 10 marks each. From each unit, there are two questions and the student should answer one of them.
Part A
What is the purpose of a field book?
Answer
A field book is used to record all measurements, observations, and sketches made during a survey to ensure an accurate and permanent record of field data for later plotting and calculations.
What is declination?
Answer
Declination is the horizontal angle between the magnetic meridian and the true (geographic) meridian at any given point on the Earth's surface.
What is a benchmark?
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What is reduced level?
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What is local attraction?
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What is reduced bearing?
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What is contour interval?
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What is reiteration method using theodolite?
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What is a closed traverse?
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What is the Bowditch method?
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Part B
What is an offset and what are its purposes? Explain, with suitable diagrams, different types of offsets.
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Obstacles in chaining.
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Cross-staff survey.
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Following consecutive readings were taken on points 1 to 7 along a line: 0.785, 1.326, 2.538, 3.435, 1.367, 2.328, 1.234, 1.657. The instrument was shifted after the fourth reading. The first reading was taken on a B.M. whose R.L. = 100.00. Rule out a page of the level book and calculate the R.L. of all points by applying/using the collimation method/system.
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The following table gives the perpendicular offsets taken from the centre line of a road to a hedge. Compute the area between the centre-line of the road and hedge by applying a) the Trapezoidal rule b) the Simpson rule.
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Explain the methods to eliminate local attraction in a closed traverse using a compass/a dial.
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Correct the following bearings taken in a compass/dial survey of a closed traverse ABCDE by including the angle method.
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Explain with suitable diagrams, the procedure to carry out temporary adjustments of a theodolite. State the precautions to be taken.
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Explain the procedure for the location of contours by indirect methods with suitable diagrams.
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Explain the procedure to measure “base line” in a triangulation survey with suitable figure (s).
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The following data for a closed traverse PQRS. Calculate the length and bearing of line SP using latitude and departure of lines.
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