surveying

The Whole Circle Bearing (WCB) of line AB is 150°. The length of AB is 100 m. The latitude and departure values, respectively, for this line are:

Which one of the following statements is TRUE with respect to levelling survey?

A 30 m long tape is standardized at 25 °C. It was used to measure the length of a line which came out to be 200 m. The temperature during the measurement was 35°C. The coefficient...

A tourist visiting a city holds a map prepared at a scale of 1:25000. The tourist measures the distance between place A and place B in the city as 12.0 cm on the map. Assuming both...

For the traverse given below, the benchmark is at ground point L. The Reduced Level (RL) of L is 150.000 m. The direction of the traverse is from L to N. The readings on levelling...

Locations P and Q are separated by a wide valley. The difference in levels of locations P and Q measured by a levelling instrument stationed near P is 3.0 m. The same instrument st...

Interior angles measured at the locations of a closed traverse ABCDA are given in table below. Location | Interior angle ---|--- A | 71° 1' 40" B | 104° 54′ 23" C | 107° 54′ 10″ D...

The following consecutive readings (in m) were taken with a dumpy level and a levelling staff at a common interval of 20 m: 0.385; 1.030; 1.925; 2.825; 3.730; 4.850; 1.045; 2.005;...

If the horizontal distance between a staff point and the point of observation is d, the error due to the curvature of earth is proportional to

If the quadrantal bearing of a line is N30°W, then the whole circle bearing of the line is

A surveyor measured the distance between two points on the plan drawn to a scale of 1 cm = 40 m and the result was 468 m. Later, it was discovered that the scale used was 1 cm = 20...

In levelling between two points A and B on the opposite banks of a river, the readings are taken by setting the instrument both at A and B, as shown in the table. If the RL of A is...

If the Fore Bearing of the lines AB and BC are 60° and 122°, respectively, then the interior angle ∠ABC (in degrees) is ________ (round off to the nearest integer).

A surveyor measured the distance between two points on the plan drawn to a scale of $1 \mathrm{~cm}=40 \mathrm{~m}$ and the result was 468 m . Later, it was discovered that the sca...

If the horizontal distance between a staff point and the point of observation is $d$, the error due to the curvature of earth is proportional to

If the quadrantal bearing of a line is N30,,aW, then the whole circle bearing of the line is

In levelling between two points A and B on the opposite banks of a river, the readings are taken by setting the instrument both at $A$ and $B$, as shown in the table. If the $R L$...

The point where the road alignment changes from a tangent to a curve is known as___________ $\qquad$

If the Fore Bearing of the lines AB and BC are $60^{\circ}$ and $122^{\circ}$, respectively, then the interior angle $\angle A B C$ (in degrees) is ________ (round off to the neare...

If the number of sides resulting in a closed traverse is increased from three to four, the sum of the interior angles increases by

A surveyor observes a zenith angle of 93° 00'00" during a theodolite survey. The corresponding vertical angle is

Among the following statements relating the fundamental lines of a transit theodolite, which one is CORRECT?

To finalize the direction of a survey, four surveyors set up a theodolite at a station P and performed all the temporary adjustments. From the station P, each of the surveyors obse...

A map is prepared with a scale of 1:1000 and a contour interval of 1 m. If the distance between two adjacent contours on the map is 10 mm, the slope of the ground between the adjac...

A child walks on a level surface from point P to point Q at a bearing of 30°, from point Q to point R at a bearing of 90° and then directly returns to the starting point P at a bea...

Differential levelling is carried out from point P (BM: +200.000 m) to point R. The readings taken are given in the table. Staff readings (m) Points Back Sight Fore Sight Remarks P...

A bird is resting on a point P at a height of 8 m above the Mean Sea Level (MSL). Upon hearing a loud noise, the bird flies parallel to the ground surface and reaches a point Q whi...

If the number of sides resulting in a closed traverse is increased from three to four, the sum of the interior angles increases by

A surveyor observes a zenith angle of 93° 00′ 00″ during a theodolite survey. The corresponding vertical angle is

Among the following statements relating the fundamental lines of a transit theodolite, which one is CORRECT?

A map is prepared with a scale of 1:1000 and a contour interval of 1 m. If the distance between two adjacent contours on the map is 10 mm, the slope of the ground between the adjac...

To finalize the direction of a survey, four surveyors set up a theodolite at a station P and performed all the temporary adjustments. From the station P, each of the surveyors obse...

The direct and reversed zenith angles observed by a theodolite are 56° 00' 00" and 303° 00' 00", respectively. What is the vertical collimation correction?

The magnetic bearing of the sun for a location at noon is 183° 30′. If the sun is exactly on the geographic meridian at noon, the magnetic declination of the location is ________.

If the size of the ground area is 6 km × 3 km and the corresponding photo size in the aerial photograph is 30 cm x 15 cm, then the scale of the photograph is 1 : ________ (in integ...

A delivery agent is at a location R. To deliver the order, she is instructed to travel to location P along straight-line paths of RC, CA, AB and BP of 5 km each. The direction of e...

Trigonometric levelling was carried out from two stations P and Q to find the reduced level (R. L.) of the top of hillock, as shown in the table. The distance between Stations P an...

Trigonometric levelling was carried out from two stations P and Q to find the reduced level (R. L.) of the top of hillock, as shown in the table. The distance between Stations P an...

If the size of the ground area is 6 km × 3 km and the corresponding photo size in the aerial photograph is 30 cm × 15 cm, then the scale of the photograph is 1 : ________ (in integ...

A delivery agent is at a location R. To deliver the order, she is instructed to travel to location P along straight-line paths of RC, CA, AB and BP of 5 km each. The direction of e...

An aerial photograph is taken from a flight at a height of 3.5 km above mean sea level, using a camera of focal length 152 mm. If the average ground elevation is 460 m above mean s...

If the magnetic bearing of the Sun at a place at noon is S 2º E, the magnetic declination (in degrees) at that place is

A line between stations P and Q laid on a slope of 1 in 5 was measured as 350 m using a 50 m tape. The tape is known to be short by 0.1 m. The corrected horizontal length (in m) of...

The bearing of a survey line is N31°17′W. Its azimuth observed from north is __________ deg. (round off to two decimal places)

An aerial photograph is taken from a flight at a height of 3.5 km above mean sea level, using a camera of focal length 152 mm. If the average ground elevation is 460 m above mean s...

A line between stations P and Q laid on a slope of 1 in 5 was measured as 350 m using a 50 m tape. The tape is known to be short by 0.1 m. The corrected horizontal length (in m) of...

The bearing of a survey line is N31$$^\circ$$17'. Its azimuth observed from north is __________ deg. (round off to two decimal places)

If the magnetic bearing of the Sun at a place at noon is S 2$$^\circ$$E. The magnetic declination (in degrees) at that place is

In general, the CORRECT sequence of surveying operations is

Which of the following is NOT a correct statement?

Which of the following is/are correct statement(s)?

A horizontal angle θ is measured by four different surveyors multiple times and the values reported are given below. Surveyor | Angle θ | Number of observations ---|---|--- 1 | 36°...

Traversing is carried out for a closed traverse PQRS. The internal angles at vertices P, Q, R and S are measured as 92°, 68°, 123°, and 77°, respectively. If fore bearing of line P...

An open traverse PQRST is surveyed using theodolite and the consecutive coordinates obtained are given in the table Consecutive Coordinates Line Northing (m) Southing (m) Easting (...

The lengths and bearings of a traverse PQRS are: Segment Length (m) Bearing PQ 40 80° QR 50 10° RS 30 210° The length of line segment SP (in m, round off to two decimal places), is

The interior angles of four triangles are given below: Triangle | Interior Angles ---|--- P | 85°, 50°, 45° Q | 100°, 55°, 25° R | 100°, 45°, 35° S | 130°, 30°, 20° Which of the tr...

The data from a closed traverse survey PQRS (run in the clockwise direction) are given in the table The closing error for the traverse PQRS (in degrees) is

A survey line was measured to be 285.5 m with a tape having a nominal length of 30 m. On checking, the true length of the tape was found to be 0.05 m too short. If the line lay on...

A series of perpendicular offsets taken from a curved boundary wall to a straight survey line at an interval of 6 m are 1.22, 1.67, 2.04, 2.34, 2.14, 1.87, and 1.15 m. The area (in...

A staff is placed on a benchmark (BM) of reduced level (RL) 100.000 m and a theodolite is placed at a horizontal distance of 50 m from the BM to measure the vertical angles. The me...

The method of orientation used, when the plane table occupies a position not yet located on the map, is called as

The accuracy of an Electronic Distance Measuring Instrument (EDMI) is specified as $\pm (a \text{ mm} + b \text{ ppm})$. Which one of the following statements is correct?

The observed bearings of a traverse are given below: Line Bearing PQ 46°15' QR 108°15' RS 201°30' ST 321°45' Line Bearing QP 226°15' RQ 286°15' SR 20°30' TS 141°45' The station(s)...

The following details refer to a closed traverse: Line | Consecutive coordinate ---|--- | Northing (m) | Southing (m) | Easting (m) | Westing (m) PQ | ---- | 437 | 173 | ---- QR |...

A level instrument at a height of 1.320 m has been placed at a station having a Reduced Level (RL) of 112.565 m. The instrument reads –2.835 m on a levelling staff held at the bott...

An aerial photograph of a terrain having an average elevation of 1400 m is taken at a scale of 1:7500. The focal length of the camera is 15 cm. The altitude of the flight above mea...

The survey carried out to delineate natural features, such as hills, rivers, forests and manmade features, such as towns, villages, buildings, roads, transmission lines and canals...

In quadrantal bearing system, bearing of a line varies from

The type of surveying in which the curvature of the earth is taken into account is called

The plan of a map was photo copied to a reduced size such that a line originally 100mm, measures 90mm. The original scale of the plan was 1:1000. The revised scale is

The plan of a survey plotted to a scale of 10m to 1cm is reduced in such a way that a line originally 10cm long now measures 9cm. the area of the reduced plan is measured as 81cm2....

The length of a baseline measured on ground at an elevation of 300m above mean sea level is 2250 m. The required correction to reduce to sea level length. (given the radius of eart...

The quadrantal bearings of the lines AB and CA are S $$30^o$$ E and S $$75^o$$ E, respectively the inclined angle CAB is _____.

Systematic errors are those errors

The required slope correction for a length of 60m, along a gradient of 1 in 20 is

True meridians at different places converge