Test: Surveying- 3 - GATE MCQ

Linked Question: 3 & 4

The following reading refer to the reciprocal level taken between the two stations P and Q:

4. If the distance between the station is 1150m, find the collimation error (in m) per 150m distance._____m.

(Important - Enter the numerical value only in the answer)

The area of the plan of an old survey plotted to a scale of 1cm to 5m now measure 90cm² as found by planimeter. The plan is found to have shrunk such that original line of 15cm length now measure only 14.5cm. A note on the plan also states that the 30cm chain used was 10cm too long. The true field area
of the survey will be____m²

(Important - Enter the numerical value only in the answer)

While operating a theodolite, the operation of bringing the vertical circle to the right of the observer, if originally it is to the left and vice versa is called as:

The whole circle bearing of side AB of an equillateral triangle ABC is 38⁰45', then the bearing of the third
side CA of the triangle is:

A line was measured with a steel tape which was exactly 30m at 20⁰C at a pull of 100N. The measured length was 1500m. If the temperature during measurement was 40⁰C and the pull applied was 150N, determine the correct length of line. Coefficient of thermal expansion of tape is 3.5 x 10^-6 per0C, cross-sectional area of tape is 2.5mm², Modulus of elasticity = 2.1 x10⁵ N/mm².

If the standard error in length of square (1m x 1m) is +0.1cm, the standard error in area will be

The most probable value of angle A from the following equations will be ___ degrees.

The number of photographs of size (25cm x 25cm) required to cover the area of (20km x 16km) if the longitudinal overlap is 60% and side overlap is 30% will be: ____
Scale of the photograph is 1/15000

(Important - Enter only the numerical value in the answer)

The fore bearing and back bearing of line PQ were observed to be 205⁰30' and 24⁰0' respectively. It was known that station Q was free from local attraction. If the bearing of sun observed from station P at local noon is 358⁰. The true bearing of line PQ will be ____ .

(Important - Enter only the numerical value in the answer)

If the staff intercept on a staff located at 100m from the level for five divisions deviation of the bubble is 0.050m and if the length of one division of the bubble is 2mm, then the radius of curvature of the bubble tube is

A theodolite was setup in between  two towers X and Y. The distance between the two tower is 180m. The distance of theodolite station from tower X is 60m. Observations were taken from the theodolite to the top of tower X and tower Y and were recorded as 350 and 300 respectively, telescope focussed upward for both the cases. The R.L. of the top of the tower X is 180m. Calculate the R.L. of the top of the tower Y.____m

(Important - Enter only the numerical value in the answer)

The coordinates of two points A and B are as follows:

Calculate the bearing of line AB.

ABCD is a regular parallelogram plot of land, whose angle BAD is 60⁰. If the bearing of the line AB is 40⁰, then the bearing of the line CD is:

A vertical photograph of chimney was taken from a elevation of 500m above the M.S.L. The elevation of the base of the chimney was 100m. If the relief displacement of the chimney was 52m and the radial distance of the image of the bottom of the chimney was 50m, the height of the chimney is:

In testing a dumpy level, following observations were recorded at staff station A and B:

Find the tan of angle of inclination of the line of collimation?

(Important - Enter the numerical value only in the answer)

How long does it take for a GPS satellite to orbit around the Earth?

A survey line 2000m in length is measured with a 30m chain. If the accidental error in measurement is +0.04m for one chain length, calculate the total error involved when survey line is measured?

In a cross staff survey, the perpendicular offsets are taken on right and left of chain line PQ as shown in the figure - all values are in ‘meters’. The area enclosed by computed by trapezoidal method is 

Consider the following map having contours. The scale of map is 1:20,000 as written on the map. The map has shrunk such that 10cm line originally is now 9cm long. The alignment of a road at ruling gradient of 5% is to be fixed from the point P and beyond. What should be the radius of arc (in cm) with P as the centre to get the point of alignment of the next contour on the map? _________ cm

(Important - Enter the numerical value only in the answer)

While carrying out adjustments of dumpy level, the following observations were made:

(i) Instrument exactly at midpoint of line AB.
Staff Reading at station A = 2.8 m
Staff Reading at sation B = 2.6 m

(ii) Instrument very near to station B.
Staff Reading at station A = 1.65 m
Staff Reading at station B = 1.85m

Find out the correct staff reading at A when the instrument is near the station B.

A sailor standing on the deck of ship, just sees the bottom of light house. If the height of the sailor’s eye and the light beam at light house, above the sea level are 9m and 25m respectively, what is the distance between the sailor and the lighthouse ? ____ km

(Important - Enter the numerical value only in the answer)

The following readings were taken with a dumpy level and a 4m levelling staff on a continuously sloping ground:

2.4, 2.65, 2.95, 1.5, 2.5, 2.75. The R.L. of first point is 100m.

The R.L. of fourth point is: