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Quiz 3
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Q.1
If the intercept on a vertical staff is ob-served as 0.75 m from a tacheometer, the horizontal distance between tacheometer and staff station is
7.5 m
25 m
50 m
75 m
Q.2
The stereo plotting instruments are generally manufactured on the principle of
Optical projection
Optical mechanism projection
Mechanical projection
All the above
Q.3
The true and mean suns occupy the same meridian at the same time on
April 15
June 14
September 1
All the above
Q.4
The horizontal angle between the true meridian and magnetic meridian at a place is called
azimuth
declination
local attraction
magnetic bearing
Q.5
Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.
By subtracting their longitudes if places are in the same hemisphere
By adding their longitudes if places are in the different hemispheres
By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
All the above
Q.6
Refraction correction
completely eliminates curvature correction
partially eliminates curvature correction
adds to the curvature correction
has no effect on curvature correction
Q.7
The number of horizontal cross wires in a stadia diaphragm is
one
two
three
four
Q.8
The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between
Horizon and equator
Equator and zenith
Zenith and pole
Pole and horizon
Q.9
The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between
Horizon and equator
Zenith and pole
Equator and zenith
Pole and horizon
Q.10
The flying height of the camera is 1,000 m above mean ground level, the distance of the top of a building from a nadir point is 10 cm and the relief displacement of building is 7.2 mm. The height of the building, is
52 m
62 m
72 m
82 m
Q.11
With the rise of temperature, the sensitivity of a bubble tube
decreases
increases
remains unaffected
none of the above
Q.12
Direct method of contouring is
a quick method
adopted for large surveys only
most accurate method
suitable for hilly terrains
Q.13
If E is the spherical excess and R the radius of the earth, the surface area of the triangle, is
πR²E/90°
πR²E/180°
πR²E/270°
πR²E/360°
Q.14
The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as
Satellite station
Eccentric station
False station
Pivot station
Q.15
In a spherical triangle ABC right angled at C, sin b equals to
sin c sin B
cos c cos B
tan c tan B
sin c cos B
Q.16
Agate cap is fitted with a
cross staff
level
chain
prismatic compass
Q.17
International Date Line is located along
Standard meridian
Greenwich meridian
Equator
180° longitude
Q.18
The length of a chain is measured from
centre of one handle to centre of other handle
outside of one handle to outside of other handle
outside of one handle to inside of other handle
inside of one handle to inside of other handle
Q.19
The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is
1 : 10,000
1 : 15,000
1 : 20,000
1 : 30,000
Q.20
In an internal focussing type of telescope, the lens provided is
concave
convex
plano-convex
plano-concave
Q.21
The correction applied to the measured base of length ‘L’ is
Tension = (P - Ps)L/AE
Sag = L³w²/24P² where w is the weight of tape/m
Slope = (h²/2L) + (h⁴/8L³) where h is height difference of end supports
All the above
Q.22
The shortest distance between two places measured along the surface of the earth, is
Length of the equator between their longitudes
Length of the parallel between their longitudes
Length of the arc of the great circle passing through them
None of these
Q.23
Longitude of a place is the angular distance between the meridian of the place and
The standard meridian
The International Date Line
That of Greenwich
Both (A) and (C) of above
Q.24
The nautical mile is the length of
1 minute of latitude
1 minute of longitude
1 degree of latitude
1 degree of longitude
Q.25
If the equatorial distance between two meridians is 100 km, their distance at 60° latitude will be
1000 km
800 km
600 km
500 km
Q.26
Which of the following is not the function of levelling head ?
to support the main part of the instrument
to attach the theodolite to the tripod
to provide a means for leveling the theodolite
none of the above
Q.27
Local attraction in compass surveying may exist due to
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
Q.28
A Nautical mile is
One minute arc of the great circle passing through two points
One minute arc of the longitude
1855.109 m
All the above
Q.29
Three point problem can be solved by
Tracing paper method
Bessels method
Lehman’s method
all of the above
Q.30
The zenith is the point on the celestial sphere
East of observer
West of observer
North of observer
South of observer
Q.31
From the principal point the horizon point lies on the principal line at a distance of
f tan θ
f sin θ
f cot θ
f cos θ
Q.32
If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167°, the magnetic declination at that place is
77° N
23° S
13° E
13° W
Q.33
To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30,000, with a camera of 30 cm focal length, the flying height is
4000 m
5000 m
6000 m
7000 m
Q.34
The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height ‘H’ is 100 m. If mean photo base is 95.2 mm, the flying height is
8,000 m
10,000 m
12,000 m
14,000 m
Q.35
The allowable length of an offset depends upon the
degree of accuracy required
method of setting out the perpendiculars and nature of ground
scale of plotting
all of the above
Q.36
The great circle whose plane is perpendicular to the axis of rotation of the earth, is called
Equator
Terrestrial equator
0° latitude
All the above
Q.37
If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be
1 cm
2 cm
3 cm
4 cm
Q.38
Which of the following methods of contouring is most suitable for a hilly terrain?
Direct method
Square method
Cross-sections method
Tachometric method
Q.39
Overturning of vehicles on a curve can be avoided by using
compound curve
vertical curve
reverse curve
transition curve
Q.40
The error due to eccentricity of inner and outer axes can be eliminated by
reading both verniers and taking the mean of the two
taking both face observations and taking the mean of the two
double sighting
taking mean of several readings distributed over different portions of the graduated circle
Q.41
The Polaris remains below horizon at
10° N
50° N Latitude
Equator
5° S latitude
Q.42
The correction for parallax, is
- 8".8 cos α
+ .8" sin α
+ 8".8 cos α
- 8".8 cos α
Q.43
The Polaris describes a small circle round the pole whose radius is approximately
1°
2°
3°
4°
Q.44
Sensitiveness of a level tube is designated by
radius of level tube
length of level tube
length of bubble of level tube
none of the above
Q.45
On vertical photographs, height displacement is
Positive for points above datum
Negative for points below datum
Zero for points vertically below the air station
All the above
Q.46
The First Point of Aeries
Is the point in the celestial sphere where zero meridian crosses the celestial equator
Is usually denoted by the Greek letter ?
Is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda
All the above
Q.47
The process of determining the locations of the instrument station by drawing re sectors from the locations of the known stations is called
radiation
intersection
resection
traversing
Q.48
The plane at right angle to the zenith-nadir line and passing through the centre of the earth, is called
Rational horizon
True horizon
Celestial horizon
All the above
Q.49
The size of a plane table is
750 mm × 900 mm
600 mm × 750 mm
450 mm × 600 mm
300 mm × 450 mm
Q.50
The angle between the plane of the equator and the plane of the ecliptic, is known as obliquity of the ecliptic and its value is
22° 30'
23° 27'
23° 30'
24° 0'
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