164 + Mcqs in Advanced Surveying Page 3 McqOptions

101.	The negative sign is assigned to
A.	reduction to mean sea level
B.	correction for horizontal alignment
C.	correction for slope
D.	correction for slope
Answer» E.

Discussion

102.	The true and mean suns occupy the same meridian at the same time on
A.	42095
B.	41791
C.	37135
D.	45992
Answer» E.

Discussion

103.	Perspective centre relates to
A.	parallel projection
B.	orthogonal projection
C.	central projection
D.	none of these.
Answer» D. none of these.

Discussion

104.	The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above
A.	equator
B.	horizon
C.	pole
D.	none of these.
Answer» C. pole

Discussion

105.	Triangulation surveys are carried out for locating
A.	control points for surveys of large areas
B.	control points for photogrammetric surveys
C.	engineering works, i.e. terminal points of long tunnels, bridge abutments, etc.
D.	all the above.
Answer» E.

Discussion

106.	Homologous point is
A.	photo principal point
B.	ground principal point
C.	ground isocentre
D.	photo isocentre
Answer» E.

Discussion

107.	The distance between the projection centre and the photograph, is called
A.	principal distance
B.	principal line
C.	isocentric distance
D.	focal length.
Answer» B. principal line

Discussion

108.	The time interval between successive transits of the moon, is
A.	24 hours 10 minutes
B.	20 hours 25 minutes
C.	24 hours 50 minutes
D.	23 hours 50 minutes
Answer» D. 23 hours 50 minutes

Discussion

109.	The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as
A.	isocentre
B.	principal point
C.	perspective centre
D.	plumb line.
Answer» C. perspective centre

Discussion

110.	By raising the z-column of right projector, maximum y-parallax is introduced in the model at
A.	position 1
B.	position 2
C.	position 4
D.	position 6
Answer» E.

Discussion

111.	Systematic errors
A.	always follow some definite mathematical law
B.	can be removed by applying corrections to the observed values
C.	either make the result too great or too small
D.	are also known as cumulative errors
Answer» E.

Discussion

112.	In a tropical year, the number of sidereal days, are
A.	365
B.	365.2224
C.	365.2422
D.	366.2422
Answer» E.

Discussion

113.	Places having same latitude
A.	lie on the parallel of the latitude
B.	are equidistant from the nearer pole
C.	are equidistant from both the poles
D.	are equidistant from the equator
Answer» E.

Discussion

114.	The average eye base is assumed as
A.	58 mm
B.	60 mm
C.	62 mm
D.	64 mm
Answer» E.

Discussion

115.	The station pointer is generally used in
A.	Triangulation surveying
B.	Astronomical surveying
C.	Hydrographical surveying
D.	Photogrammetric surveying.
Answer» D. Photogrammetric surveying.

Discussion

116.	Equation of time which is the difference between apparent solar time and mean solar time at any instant, vanishes during one year
A.	once
B.	twice
C.	thrice
D.	four times
Answer» E.

Discussion

117.	For any star to be a circumpolar star, its
A.	declination must be 0¬∞
B.	declination must be 90¬∞
C.	distance from the pole must be less than the latitude of the observer
D.	hour angle must be 180¬∞.
Answer» D. hour angle must be 180¬∞.

Discussion

118.	The prime vertical passes through
A.	the east point of the horizon
B.	the west point of the horizon
C.	the zenith point of the observer
D.	the nadir point of horizon
Answer» E.

Discussion

119.	A star in northern sphere is said to transit
A.	when its altitude is maximum
B.	when its azimuth is 180¬∞
C.	when it is in south
D.	all the above.
Answer» E.

Discussion

120.	The correction for parallax, is
A.	- 8".8 cos Œ±
B.	+ .8" sin Œ±
C.	+ 8".8 cos Œ±
D.	- 8".8 cos Œ±.
Answer» D. - 8".8 cos Œ±.

Discussion

121.	Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is
A.	0.1 mm
B.	0.5 mm
C.	1.00 mm
D.	1.1 mm.
Answer» B. 0.5 mm

Discussion

122.	The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude :
A.	mean sun
B.	true sun
C.	vernal equinox
D.	star
Answer» E.

Discussion

123.	The orthogonal projection of the perspective centre on a tilted photograph, is called
A.	nadir
B.	isocentre
C.	principal point
D.	plumb point.
Answer» D. plumb point.

Discussion

124.	The angle between the observer's meridian and declination circle of a heavenly body, is known as
A.	hour angle
B.	azimuth
C.	right ascension
D.	declination.
Answer» B. azimuth

Discussion

125.	The necessary geometrical condition for triangulation adjustment, is :
A.	The sum of the angles around a station should be 360¬∞
B.	The sum of the three angles of a plane triangle should be 180¬∞
C.	The sum of the eight angles of a braced quadrilateral should be 360¬∞
D.	All the above.
Answer» E.

Discussion

126.	Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.
A.	by subtracting their longitudes if places are in the same hemisphere
B.	by adding their longitudes if places are in the different hemispheres
C.	by subtracting the sum of their longitudes exceeding 180¬∞ from 360¬∞ if places are in different hemispheres
D.	all the above.
Answer» D. all the above.

Discussion

127.	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
A.	1 cm
B.	2 cm
C.	3 cm
D.	4 cm
Answer» E.

Discussion

128.	The latitude (Œª) of a place and the altitude (Œ±) of the pole are related by
A.	Œª = Œ±
B.	Œª = 90¬∞ - Œ±
C.	Œª = Œ± - 90¬∞
D.	Œª = 180¬∞ - Œ±.
Answer» B. Œª = 90¬∞ - Œ±

Discussion

129.	To have greatest coverage of the area, the type of photography used, is
A.	high oblique
B.	low oblique
C.	vertical
D.	none of these.
Answer» B. low oblique

Discussion

130.	The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as
A.	satellite station
B.	eccentric station
C.	false station
D.	pivot station.
Answer» E.

Discussion

131.	The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than
A.	0.01 second
B.	0.001 second
C.	0.0001 second
D.	none of these.
Answer» D. none of these.

Discussion

132.	If Œ¥ is the declination of the star and œÜ is the latitude of the observer then the hour angle of the star at elongation is given by
A.	sin H = tan œÜ . cot Œ¥
B.	cos H = tan œÜ . cot Œ¥
C.	tan H = tan œÜ . cot Œ¥
D.	none of these.
Answer» C. tan H = tan œÜ . cot Œ¥

Discussion

133.	According to Napier's Rules of circular parts for a right angled triangle, sine of middle part equals the product of
A.	tangents of two adjacent parts
B.	sines of two adjacent parts
C.	cosines of two adjacent parts
D.	cosines of two opposite parts
Answer» E.

Discussion

134.	The height displacement on a vertical photograph
A.	increases as the horizontal distance increases from the principal point
B.	increases as the ground elevation increases
C.	decreases as the flying height increases
D.	all the above.
Answer» E.

Discussion

135.	Polaris is usually observed for the determination of the azimuth when it is
A.	at culmination
B.	at elongation
C.	neither at culmination nor at elongation
D.	either at culmination or at elongation.
Answer» C. neither at culmination nor at elongation

Discussion

136.	The circle in which a plane tangent to the earth's surface at the point of observation, intersects the celestial sphere, is called
A.	visible horizon
B.	sensible horizon
C.	celestial horizon
D.	true horizon
Answer» C. celestial horizon

Discussion

137.	Stellar astronomy deals with
A.	plane surveying
B.	geodetic surveying
C.	star observations
D.	planet observations.
Answer» D. planet observations.

Discussion

138.	Sidereal day
A.	is the period of time taken by the earth in making a complete rotation with reference to stars
B.	is slightly shorter than an ordinary solar day
C.	is divided into the conventional hours, minutes and seconds
D.	all the above.
Answer» E.

Discussion

139.	If Œ∏ and Œ¥ be the latitude of an observer and declination of a heavenly body respectively, the upper culmination of the body will be south of zenith if its zenith distance, is
A.	Œ¥ - Œ∏
B.	Œ∏ - Œ¥
C.	Œ∏ + Œ¥
D.	(Œ∏ - Œ¥).
Answer» C. Œ∏ + Œ¥

Discussion

140.	The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as
A.	photo plumb point
B.	plumb point
C.	nadir point
D.	isocentre
Answer» B. plumb point

Discussion

141.	Rotation of the camera at exposure about horizontal axis normal to the line of flight, is known as
A.	swing
B.	tilt
C.	tip
D.	none of these.
Answer» D. none of these.

Discussion

142.	An aerial photograph may be assumed as
A.	parallel projection
B.	orthogonal projection
C.	central projection
D.	none of these.
Answer» D. none of these.

Discussion

143.	The principal plane contains
A.	nadir point
B.	iso centre
C.	principal point
D.	principal axis and principal line
Answer» E.

Discussion

144.	The zenith is the point on the celestial sphere
A.	east of observer
B.	west of observer
C.	north of observer
D.	south of observer
Answer» E.

Discussion

145.	While making astronomical observations, the observer is mainly concerned with
A.	the direction of the vertical, the axis of rotation of the instrument
B.	the direction of the poles of the celestial sphere
C.	the direction of the star from the instrument
D.	all the above.
Answer» E.

Discussion

146.	The relief displacement of a minar 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is
A.	500 m
B.	1000 m
C.	1500 m
D.	2000 m.
Answer» C. 1500 m

Discussion

147.	The moon rotates round the earth once in every
A.	29 days
B.	29.35 days
C.	29.53 days
D.	30 days.
Answer» C. 29.53 days

Discussion

148.	The movement of the projector in y-direction, introduces in the model a y-parallax
A.	maximum at position 1
B.	maximum at position 2
C.	maximum at position 5 and 6
D.	maximum at positions 3 and 4
Answer» E.

Discussion

149.	The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is
A.	altitude and azimuth system
B.	declination and hour angle system
C.	declination and right ascension system
D.	declination and altitude system
Answer» D. declination and altitude system

Discussion

150.	In field astronomy, the quantities observed are entirely
A.	lengths
B.	angles
C.	heights
D.	all of these.
Answer» C. heights

Discussion

Explore topic-wise MCQs in Civil Engineering.

The negative sign is assigned to

The true and mean suns occupy the same meridian at the same time on

Perspective centre relates to

The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above

Triangulation surveys are carried out for locating

Homologous point is

The distance between the projection centre and the photograph, is called

The time interval between successive transits of the moon, is

The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as

By raising the z-column of right projector, maximum y-parallax is introduced in the model at

Systematic errors

In a tropical year, the number of sidereal days, are

Places having same latitude

The average eye base is assumed as

The station pointer is generally used in

Equation of time which is the difference between apparent solar time and mean solar time at any instant, vanishes during one year

For any star to be a circumpolar star, its

The prime vertical passes through

A star in northern sphere is said to transit

The correction for parallax, is

Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is

The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude :

The orthogonal projection of the perspective centre on a tilted photograph, is called

The angle between the observer's meridian and declination circle of a heavenly body, is known as

The necessary geometrical condition for triangulation adjustment, is :

Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.

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

The latitude (Œª) of a place and the altitude (Œ±) of the pole are related by

To have greatest coverage of the area, the type of photography used, is

The station which is selected close to the main triangulation station, to avoid intervening obstruction, is not known as

The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than

If Œ¥ is the declination of the star and œÜ is the latitude of the observer then the hour angle of the star at elongation is given by

According to Napier's Rules of circular parts for a right angled triangle, sine of middle part equals the product of

The height displacement on a vertical photograph

Polaris is usually observed for the determination of the azimuth when it is

The circle in which a plane tangent to the earth's surface at the point of observation, intersects the celestial sphere, is called

Stellar astronomy deals with

Sidereal day

If Œ∏ and Œ¥ be the latitude of an observer and declination of a heavenly body respectively, the upper culmination of the body will be south of zenith if its zenith distance, is

The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as

Rotation of the camera at exposure about horizontal axis normal to the line of flight, is known as

An aerial photograph may be assumed as

The principal plane contains

The zenith is the point on the celestial sphere

While making astronomical observations, the observer is mainly concerned with

The relief displacement of a minar 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is

The moon rotates round the earth once in every

The movement of the projector in y-direction, introduces in the model a y-parallax

The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is

In field astronomy, the quantities observed are entirely