JNTU B.Tech II MINE SURVEYING Previous Question Paper (May - 2019 - R16)

Distinguish between plain surveying and geodetic surveying.

What are the components used in total station surveying?

Find the correction for curvature for a distance of 2.48 km.

Define back sight, fore sight, and change/turning point.

Define line of collimation.

Discuss about principles of triangulation.

Define deflection angle in setting a simple circular curve.

Two distances of 20 and 100 m were accurately measured out and the intercepts on the staff between the outer stadia webs were 0.196 m at the former distance and 0.996 m at the latter. Calculate tachometric constants.

Define shaft and Gangway.

Explain about mining theodolite.

Discuss in detail the steps involved in chain surveying of a given area.

Define ranging, and explain about reciprocal ranging.

The following interior angles were measured with a sextant in a closed traverse. The bearing of the line AB was measured as 60 degrees with prismatic compass. Calculate the bearings of all other lines if angle A=140 degree 10 min, B=99 degree 8 min, C=60 degree 22 min, D=69 degree 20 min.

Explain magnetic declination and dip.

Explain temporary adjustments of a level.

The following staff readings were observed successively with a level, the instrument was shifted after third, sixth, and eighth readings: 2.228, 1.606, 0.988, 2.090, 2.864, 1.262, 0.602, 1.982, 1.044, and 2.684 m. Enter the above readings in level book, and calculate RLs of points using rise and fall method if the first reading was taken over a bench mark of 432.384 m.

In levelling between two points A and B on opposite banks of the river, the level was set up near A, and the staff readings on A and B were 1.285 and 2.860 m respectively. The level was then shifted near B, and the respective readings on A and B were 0.860 and 2.220 m. Find the true difference in elevation between A and B.

Explain about profile levelling.

Discuss about temporary adjustments of theodolite.

Explain about measurement of horizontal angle by repetition method.

Explain about Bowditch method of correction in closed traversing.

Find the area of a closed traverse considering the following data by coordinate method. (Latitude: AB=+225.5, BC=-245.0, CD=-150.5, DA=+170.0; Departure: AB=+120.5, BC=+210.0, CD=-110.5, DA=-220.0)

A series of offsets were taken from a chain line to a curved boundary line at intervals of 15 m in the following order: 0, 2.65, 3.80, 3.75, 4.65, 3.60, 4.95, and 5.85 m. Compute the area between the chain line, the curved boundary and the offsets by Simpson's rule.

Derive the basic expression for determining distance of an object using tachometer when the line of sight is horizontal.

A tachometer was set up at a station A and the readings on a vertically held staff at B were 2.255, 2.605, and 2.955, the line of sight being at an inclination of +8 degrees 24'. Another observation on the vertically held staff at BM gave the readings 1.640, 1.920, and 2.200, the inclination of the line of sight being +1 degree 6'. Calculate the horizontal distance between A and B, and the elevation of B if the RL of BM is 418.685 m. The constants of the instrument were 100 and 0.3.

Derive relation between radius and degree of a circular curve.

Discuss about basic mine surveying operations.

The center line of a tunnel is represented by two plumb bobs A and B, 4 m apart, hanging vertically in a shaft. The whole circle bearing of the line AB is 90 degrees 32' 20''. A theodolite is set up at a point C in the tunnel and roughly east of the near plumb line at B and at a distance of 4.155 m. The observed value of the horizontal angle ACB is 18' 25''. Calculate the bearing of the line AC and perpendicular distance of C from the center line of the tunnel.

Discuss briefly two shaft Weissbach’s quadrilateral method.

What is GPS, and how does it works?