Survey Test 1

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

A
1 : 900

B
1 : 1111

C
1 : 1121

D
1 : 1221

Question 2
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The distance between the points measured along a slope is 428 m. Find the horizontal distance between the two points for the two different cases
Case 1: The angle of slope between the points is 8°
Case 2: The Slope is 1 in 4

A
For Case 1: Horizontal distance = 423.83 m

B
For Case 2: Horizontal distance = 415.22 m

C
For Case 1: Horizontal distance = 59.6 m

D
For Case 2: Horizontal distance = 103.8 m

Question 3
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To find the Reduced Level of a roof slab of building, staff readings were taken from a particular set-up of the levelling instrument. The readings were 1.050 m with staff on the Bench Mark and 2.300 m with staff below the roof slab and inverted.
Taking the Reduced Level of the Bench Mark as 135.15 m, the Reduced Level of the roof slab will be?

A
129.800

B
131.900

C
134.400

D
138.500

Question 4
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On an old map a line was drawn to a magnetic bearing of 280° 45’ when the declination was 2° 15’ W. If due to some magnetic effect, the magnetic bearing at present’s reported as 272° 45’. The Find out the present declination.

A
5° 45’ W

B
5° 45’ E

C
5° 15’ E

D
5° 30’ W

Question 5
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Local attraction in compass surveying may exist due to

A
incorrect levelling of the magnetic needle

B
loss of magnetism of the needle

C
friction of the needle at the pivot

D
presence of magnetic substances near the instrument

Question 6
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Which method of contouring is most suitable for hilly terrains?

A
Cross section method

B
Direct method

C
Square method

D
Tachometric method

Question 7
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Following are the two statements given on the subtense bar tacheometry
Statement 1: In subtense bar tacheometry the error due to atmospheric refraction is very less
Statement 2: The subtense bar tacheometry method is adopted for flat areas
Select the Correct statement

A
Statement 1 is Correct

B
Statement 2 is Incorrect

C
Statement 1 is Incorrect

D
Statement 2 is Correct

Question 8
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In a cross staff survey, the perpendicular offsets are taken on right and left of the chain line AD as shown in figure – all values are in ‘metres’. The area enclosed by ABCDEFA, computed by trapezoidal method is

A
3650 m²

B
3200 m²

C
3475 m²

D
3500 m²

Question 9
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The minimum number of satellites needed for a GPS to determine its position precisely is

A
2

B
3

C
4

D
24

Question 10
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A vertical photograph is taken at an altitude of 1200 m ‘above mean sea level’ (a.m.s.l.) of a terrain lying at an elevation of 80 m (a.m.s.l.) The focal length of camera is 15 cm. The scale of the photograph will be nearly

A
1 : 8376

B
1 : 7467

C
1 : 6558

D
1 : 5649

Question 11
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If fore bearing of a line is S 49°52'E (assuming there is no local attraction), the back bearing of the line will be

A
S 52°49'E

B
S 49°52'E

C
N 49°08'E

D
N 49°52'W

Question 12
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Statement I): All old systems of surveying can be completely replaced by remote sensing system basing on INSAT data.
Statement II): Reference data in-situ is essential in interpreting satellite imageries.

A
Both Statement I) and Statement II) are individually true and Statement II) is the correct explanation of Statement I)

B
Both Statement I) and Statement II) are individually true but Statement II) is not the correct explanation of Statement I)

C
Statement I) is true but Statement II) is false

D
Statement I) is false but Statement II) is true

Question 13
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If the declination is 5°40'W, which one of the following magnetic bearing would represent the true bearing of S 25°20'E?

A
S 19°20'E

B
S 19°40′ E

C
S 20°0'E

D
S 19°20'W

Question 14
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The series of observation are taken across a river under the same identical conditions.
Point
Reading
(cm)
1
2
3
4
3.125
3.250
3.350
3.010
The probable error of the mean of number of observations of the same quantity is

A
± 0.0324 metre

B
± 0.0998 metre

C
± 0.0499 metre

D
± 3.020 metre

Question 15
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The distance between two stations was measured with a 20 m chain and found to be 1500 m. The same was measured with a 30 m chain and found to be 1476 meters. If the 20 m chain was 5 cm too short, then the error in 30 m chain is

A
12 cm too short

B
19 cm too long

C
33 cm too short

D
41 cm too long

Question 16
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Following bearings are observed while traversing with a compass
Line
Fore Bearing
Back Bearing
AB
75° 5’
254° 20’
BC
115° 20’
296° 35’
CD
165° 35’
345° 35’
DE
224° 50’
44° 5’
EA
304° 50’
125° 5’
Which of the following are true?

A
Station C and D are free from local attraction

B
Corrected fore bearing of line EA is 305° 35’

C
Only station C is free from local attraction

D
Corrected fore bearing of line EA is 306° 5’

Question 17
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The following bearing were observed while traversing with a compass

Which stations were affected by local attraction?

A
A and B

B
B and C

C
C and D

D
A and D

Question 18
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In a proposed reservoir, the area contained within the contours are
Contour (m)
100
95
90
85
80
Area (ha)
32
26
24
18
15
Ignoring the water below 80 m, the capacity of reservoir when water is full upto 100 m using the method of end areas is : (in ha – m)

A
457-458

B
4574-4581

C
4577-4586

D
4579-4582

Question 19
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If the forebearing of a line AB is 35° and that of line BC 15° then the included angle between the lines is

A
20°

B
50°

C
160°

D
230°

Question 20
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The following perpendicular offsets were taken at 10 metres intervals from a survey line to an irregular boundary line: 3.25, 5.60, 4.20, 6.65, 8.75, 6.20, 3.25, 4.20, 5.65. Calculate the area enclosed between the survey line, the irregular boundary line, by Simpson’s rule.

A
4.24 acres

B
4.33 acres

C
4.39 acres

D
4.45 acres

Question 21
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What is the magnetic declination at a place if the magnetic bearing of the sun at noon is 184°.

A
4°W

B
4°E

C
176°W

D
176°E

Question 22
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A series of closely spaced contour lines represents a

A
steep slope

B
gentle slope

C
uniform slope

D
plane surface

Question 23
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A vertical photograph of a flat area having an average elevation of 250 m above mean sea level was taken with a camera of focal length 25 cm. A section Line AB 300 m long m the area measures 15 cm on the photograph; a tower BP in the area also appears on the photograph. The distance between images of top and bottom of the tower measures 0.5 cm on the photograph. The distance of the Image of the top of the tower is 10 cm. The actual height of the tower is

A
10 m

B
15 m

C
20 m

D
25 m

Question 24
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A scale of 1 in 10000 is adopted for a photogrammetric survey for the region of 200 square kilometres. Calculate the numbers of photographs each of 250 mm × 250 mm size required to study the surface if the longitudinal overlap and side overlap for the photography are 60 percent and 30 percent respectively.

A
113

B
114

C
115

D
116

Question 25
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A curve of radius 530m is to be set out on ground for a deflection angle of 55°, if due to some obstruction, the deflection angle need to be increased by 60% then the length of the curve required to be increased by

A
305.26 m

B
814.02 m

C
100 m

D
152.63 m

Submit Test

Line	Fore Bearing	Back Bearing
AB	75° 5’	254° 20’
BC	115° 20’	296° 35’
CD	165° 35’	345° 35’
DE	224° 50’	44° 5’
EA	304° 50’	125° 5’

Contour (m)	100	95	90	85	80
Area (ha)	32	26	24	18	15

Survey Test 1...

Question 1

1 : 900

1 : 1111

1 : 1121

1 : 1221

Question 2

​For Case 1: Horizontal distance = 423.83 m

For Case 2: Horizontal distance = 415.22 m

For Case 1: Horizontal distance = 59.6 m

For Case 2: Horizontal distance = 103.8 m

Question 3

129.800

131.900

134.400

138.500

Question 4

5° 45’ W

5° 45’ E

5° 15’ E

5° 30’ W

Question 5

incorrect levelling of the magnetic needle

loss of magnetism of the needle

friction of the needle at the pivot

presence of magnetic substances near the instrument

Question 6

Cross section method

Direct method

Square method

Tachometric method

Question 7

Statement 1 is Correct

Statement 2 is Incorrect

Statement 1 is Incorrect

Statement 2 is Correct

Question 8

3650 m2

3200 m2

3475 m2

3500 m2

Question 9

2

3

4

24

Question 10

1 : 8376

1 : 7467

1 : 6558

1 : 5649

Question 11

S 52°49'E

S 49°52'E

N 49°08'E

N 49°52'W

Question 12

Both Statement I) and Statement II) are individually true and Statement II) is the correct explanation of Statement I)

Both Statement I) and Statement II) are individually true but Statement II) is not the correct explanation of Statement I)

Statement I) is true but Statement II) is false

Statement I) is false but Statement II) is true

Question 13

S 19°20'E

S 19°40′ E

S 20°0'E

S 19°20'W

Question 14

± 0.0324 metre

± 0.0998 metre

± 0.0499 metre

± 3.020 metre

Question 15

12 cm too short

19 cm too long

33 cm too short

41 cm too long

Question 16

Station C and D are free from local attraction

Corrected fore bearing of line EA is 305° 35’

Only station C is free from local attraction

For Case 1: Horizontal distance = 423.83 m

3650 m²

3200 m²

3475 m²

3500 m²