Model Question Paper - 1

For a given traverse, latitudes and departures are calculated and it is found that sum of latitudes is equal to +2.1 m and the sum of departures is equal to -2.8 m. The length and bearing of the closing error, respectively, are

• 3.50 m and 53°7'48''NW

• 2.45 m and 53°7'48''NW

• 0.35 m and 53.13°SE

• 3.50 m and 53.13°SE

A horizontal angle ^θ is measured by four different surveyors multiple times and the values reported are given below.

The Most probable value of the angle ^θ (in degree, round off to two decimal places is _______________

• 12

• 36

• 28

• 44

A Bench Marck (BM) with Reduced Level (RL) = 155.305 m has been established at the floor of a room. It is required to find out the RL of the underside of root (R) of the room using Spirit Levelling. The Back Sight (BS) to the BM has been observed as 1.500 m whereas the Fore Sight (FS) to R has been observed as 0.575

• 155.88

• 156.23

• 157.38

• 157.86

The observed magnetic bearing of a line OE was found to be 185 °. if was later discovred that station o had a local attraction of + 1.5 ° . The true bearing of the line OE , considering a magnitice declination of 3.5°E shall be

• 180°

• 187°

• 190°

• 193°

In General, the CORRECT sequence of Surveying operations is

• Field observations Reconnaissance Data Analysis Map Making

• Data Analysis Reconnaissance Field Observation Map Making

• Reconnaissance Field Observations Data Analysis Map Making

• Reconnaissance Data Analysis Field Observations Map

The following table gives data of consecutive coordinates in respect of a closed

theodolite traverse PQRSP

• 2.0m and 45°

• 2.0m and 315°

• 2.82m and 315°

• 3.42m and 45°

The plan of a map was photocopied to a reduced size such that a line originally

100 mm, measures 90 mm. The original scale of the plan was 1:1000. The revised scale is

• 1:900

• 1:11 11

• 1:1121

• 1:1221

During a levelling work along a falling gradient using a Dumpy level and a Staf fof 3 m length, following successive readings were taken :1.785,2.935,0.360,1.320. What will be the correct order of booking these four readings in a level book ? (BS : Back Sight, IS : Intermediate Sight , FS : fore sight)

• BS, FS, BS, FS

• BS, IS, FS, FS

• BS, IS, FS, FS

• BS, IS, BS, FS

In the figure given below, the length PQ (WCB : 30°) and QR (WRB : 45°) RESPECTIVELY UP TO THREE PLACES OF DECIMAL ARE

• 273.205, 938.186

• 273.205, 551.815

• 551.815, 551.815

• 551.815 , 938.186

Consider the following figure, which is an extract from a contour map (scale=1:20,000) of an area. An alignment of a road at a ruling gradient of 4% is to be road at a ruling gradient of 4% is to be fixed from thr point o and bryond . what should be the radius of the arc with o as should be the r

• 0.025 cm

• 0.25 cm

• 2.5 cm

• 5 CM