Question bank. Unit 1: Introduction

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1 Question bank Unit 1: Introduction 1. Define surveying. 2. State the objects of surveying 3. State and explain the principle of surveying 4. State and explain the classification of surveying 5. Differentiate between plane surveying and geodetic surveying 6. State the uses of surveying 7. Draw the conventional symbols used in surveying. Unit 2 : Linear Measurements 1. Enlist the various methods of linear measurement 2. What are the types of Tapes? Explain each of them 3. State and explain the various instruments in linear measurement. 4. Define chaining and Ranging. 5. State and explain the types of ranging 6. Differentiate between direct and indirect ranging 7. Give the codes for leader to assist the follower. 8. State and explain the operation in chaining 9. State the mistakes in chaining. Unit 3 : Chain Triangulation and cross staff survey 1. What do you mean by well conditioned triangle. 2. What is the principle of chain surveying 3. Describe with neat sketch the various stations used in surveying. 4. Draw the sketch of chain triangulation and label them. 5. What are the considerations while selecting the station and station lines. 6. What are types of offsets. Explain each of them. 7. Differentiate between long and short offsets 8. Define optical square. 9. What is the principle of optical square. 10. State the procedure of setting out the offset with optical square. 11. Define open cross staff. State its uses. 12. Explain the use of optical square. Unit 4 : Compass Traverse Survey 1. Write the principle of compass surveying 2. Define closed and open traverse 3. Define: a. Bearing. b. Whole circle bearing c. Reduced bearing d. Fore bearing e. Back bearing f. Dip g. Local Attraction h. Magnetic declination i. True meridian j. Magnetic meridian k. Arbitrary meridian l. Grid meridian 4. State the systems of bearing 5. How will you determine included angles from the bearings? Explain with sketches. 6. Draw a neat sketch of prismatic compass showing different components. 7. What are advantages of prismatic compass. 8. State the function of each of the component of magnetic compass. 9. What are the temporary adjustments of prismatic compass. 10. Why zero marked at south end on prismatic compass. 11. State the causes and the remedies for removal of local attraction 12. How will you detect presence of local attraction in a plane 13. Describe graphical adjustment of closing error by Bowditch s rule Prof. Manisha Gupta, JD Polytechnic, Nagpur Page 1

2 Unit 5: Levelling 1. Define levelling. 2. What are the objectives of levelling. 3. Define: a. Level line b. Level surface c. Horizontal line d. Horizontal surface e. Vertical line f. Datum surface g. Mean sea level h. Parallax i. Benchmark j. Reduced level k. Axis of telescope. l. Back sight m. Fore sight n. Intermediate sight o. Change point p. Height of instrument 4. What are different types of benchmark. Explain each of them 5. State the fundamental axis and mention their relationship for a dumpy level. 6. Describe in brief negative staff reading 7. Explain the temporary adjustments of a dumpy level. 8. Differentiate between rise and fall method and HI method of reduction of levels. 9. State the situations when fly levelling is used. 10. What is check levelling 11. Define reciprocal levelling 12. Define profile levelling 13. Differentiate between a. Back sight and fore sight b. Level surface and horizontal surface 14. Describe the advantages of Auto Level 15. What are the sources of errors in levelling c. TBM and PBM d. Axis of telescope and line of collimation Unit6 : CONTOURING 1. Define: a. Contour. B. Contour Interval 2. Explain graphical method of interpolation of contours 3. State difference between contour interval and horizontal equivalent. 4. Explain characteristics of contour with neat sketch. 5. What do you mean by interpolation of contour? State the methods of interpolation. 6. State the uses of contour maps. 7. Draw the neat sketch of 1. Hill 2. Valley 3. Steep slope Unit 7: Area and Volume measurement 1. State the Trapezoidal and prismoidal formula for volume computation. Also State the application. Also state the application of each with example. 2. Define term zero circle used in planimeter. State the advantages of digital planimeter. 3. Draw neat sketch of Amsler polar planimeter. Name its parts. 4. What are the additive and multiplying constants of planimeter. 5. Differentiate between trapezoidal and prismoidal formula. Numerical Unit 2: Linear Measurements 1. A 20 m chain was found to be 0.05m too short after chaining 1400m. It was found to be 0.20m too short after chaining 2200m. If chain was correct before commencement of work find the true distance chained. 2. A 20m chain was tested before start of chaining work. Line PQ was chained by it and observed to be 1280m the chain was tested at the end of work and was found to be 15cm too short. Find the correct distance PQ. Prof. Manisha Gupta, JD Polytechnic, Nagpur Page 2

3 3. A 30m chain was tested before start of chaining work. Line PQ was chained by it and observed to be 1230m the chain was tested at the end of work and was found to be 12cm too short. Find the correct distance PQ. 4. A rod actually 1410m long was found when measurement by a defective 30m chain to be How much correction does the chain need? 5. A 30 m chain was found to be 12cm too long after chaining 1750m. It was found to be 23cm too long after chaining 3600m. If chain was correct before commencement of work find the true distance chained. 6. A 60m tape is suspended between the ends under a pull of 18kg. The weight of the tape is 1.7 kg. Find the corrected length of the tape between its ends. Unit 3 : Chain Triangulation and cross staff survey 1. Prepare a page of field showing chain line with following details: a. Length of chain line 105m b. A tree 30m perpendicular from chainage 15m at right c. The corners of the building are 42m and 48m from chainage 60m and 75m resp. To the left. 2. Prepare a page of field showing chain line with following details: a. Length of chain line 100m b. A electric pole 25m perpendicular from chainage 20m at left. c. The corners of the building are 40m and 55m from chainage 60m and 80m resp. To the right 3. B and C are two points on the opposite banks of river along a chain line ABC which crosses the river at right angle to the bank. From a point P which is 150m from B along the bank, the bearing of C is and the bearing of A is If the length AB is 200m, find the width of the river. 4. Q and R are two points on the opposite banks of river along a chain line PQR which crosses the river at right angle to the bank. From a point A which is 96.2m from Q along the bank, the bearing of R is and the bearing of R is If the length AB is 150m, find the width of the river. 5. To find out the width of river, flowing west-east, two points P and Q are fixed along a bank 400m apart. The bearing of a pole R on the other bank of the river as observed from P and Q are 30 0 and Determine the width of river. Unit 4: Compass Traverse survey 1. Convert the following RB to WCB a. N W b. S W c. S E d. N E 2. Convert the following whole circle bearing into quadrantal bearing a b Write the bearing of the line , c d Calculate the FB into BB: a b. S W c Calculate interior angles in a closed traverse Line FB Line FB PQ PQ S E QR QR S W RS RS N W SP ST N E TP N E 6. ABCD is closed polygon. angle A = 125 0, angle B = 110 0, angle C = 55 0, angle D = FB of line AB is Find out FB and BB of all the lines. 7. A line was drawn to magnetic bearing of on an old map, when magnetic declination was E. To what bearing it should be set now, if present magnetic declination is W. Prof. Manisha Gupta, JD Polytechnic, Nagpur Page 3

4 90 D 96 D F 48 E C 30 B F 48 E C 30 B 93 D 55 E 30 F 100 D C 20 B F 36 E C 20 B The following bearing have been observed while carrying out a closed compass traverse in clockwise direction. Calculate the error due to local attraction and find corrected bearing and also compute the included angles. AB BC CD DA AB BC CD DA AB BC CD DE EA AB BC CD DA AB BC CD DA AB BC CA Prof. Manisha Gupta, JD Polytechnic, Nagpur Page 4

5 Unit 6: Levelling 1. The following consecutive readings were taken with a dumpy level , 3.050, 2.755, 1.575, 0.625, 3.575, 2.875, 1.255, 1.785, 0.795, The level was shifted after 5 th & 8 th readings. The first reading was taken on the bench mark of RL Enter the readings in the level book and calculate the RL of all the points. Apply usual checks. 2. The following consecutive readings were taken with a dumpy level , 0.933, 1.768, 2.450, 3.005, 0.567, 1.181, 1.888, 3.679, 0.612, 0.705, The level was shifted after 5 th & 9 th readings. The first reading was taken on the bench mark of RL Enter the readings in the level book and calculate the RL of all the points. Apply usual checks. 3. The following consecutive readings were taken with a dumpy level , 1.643, 2.896, 3.016, 0.954, 0.692, 0.582, 0.251, 1.532, 0.996, The level was shifted after 4 th & 8 th readings. The first reading was taken on the bench mark of RL Enter the readings in the level book and calculate the RL of all the points. Apply usual checks. 4. The following consecutive readings were taken with a dumpy level and 4m levelling staff on sloping ground at interval 30m on A, 0.935, 1.950, 2.845, 3.640, 3.930, 0.965, 1.035, 1.690, 2.540, 3.845, 0.955, 1.575, on B. The first reading was taken on the point A of RL Enter the readings in the level book and calculate the RL of all the points. Apply usual checks. Also find the gradient. 5. The following consecutive readings were taken with a dumpy level and 4m levelling staff on sloping ground at interval 30m. 0.68, 1.455, 1.855, 2.330, 2.885, 3.380, 1.055, 1.86, 2.265, 3.540, 0.835, 0.945, 1.53, The first reading was taken on RL Enter the readings in the level book and calculate the RL of all the points. Apply usual checks. Also find the gradient 6. The following consecutive readings were taken with a dumpy level , 3.203, 2.909, 3.455, 3.890, 0.739, 1.372, The level was shifted after 5 th readings. The first reading was taken on the bench mark of RL Enter the readings in the level book and calculate the RL Station Reading BS IS FS Rise Fall RL Remark BM* X X BM X X BM-3 points. Apply usual checks. Station Reading BS IS FS Rise Fall RL Remark BM X X 4. X X of all the 7. Fill the missing reading and calculate the RL of the stations and apply checks. Prof. Manisha Gupta, JD Polytechnic, Nagpur Page 5

6 X BM2 Unit: Area & volume Measurement 1. Calculate the area of figure traversed clockwise with anchor point inside and with tracing arm set to give M, the multiplying constant=100 cm 2 and additive constant C= 20, initial reading = 3.436, Final reading= An irregular area was measured with planimeter keeping the anchor point inside the figure, the following readings were obtained. (i) initial reading=9.358, Final reading=4.425 The zero mark crossed the fixed index once in anticlockwise direction. M=100, C=28.4. Calculate the area of the figure. 3. Determine the area of figure for the following readings were obtained. (i) initial reading=8.948, Final reading= C= The zero mark crossed the fixed index once in anticlockwise direction. The anchor point was kept inside the figure and tracing point was moved in clockwise direction. Area measured with the planimeter is 100cm 2 when its drum or roller makes one complete revolution. 4. The following reading were observed when the area of the figure was measure with a planimeter M = 100cm 2. Find the area of zero circle. IR FR Position of anchor point Value of N Outside the figure Inside the figure The following reading was obtained while describing the planimeter of a trapezoidal shape. The base lines are of 20 and 40 m with the height of 15 m. the anchor point inside the trapezoidal and the tracing arm set to the natural scale (M=100 ) IR = and FR= The zero of the counting disc passed the fixed index mark twice in the anticlockwise direction. Find the area of zero circle. Prof. Manisha Gupta, JD Polytechnic, Nagpur Page 6