MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 164 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The declination and right ascension of the sun are each equal to zero on |
| A. | 44256 |
| B. | 44348 |
| C. | 44440 |
| D. | December 22. |
| Answer» B. 44348 | |
| 52. |
By applying clockwise swing to right projector, maximum y-parallax is introduced in the model at |
| A. | position 1 |
| B. | position 2 |
| C. | position 4 |
| D. | position 6. |
| Answer» B. position 2 | |
| 53. |
Pick up the incorrect statement from the following. In a spherical triangle |
| A. | every angle is less than two right angles |
| B. | sum of the three angles is equal to two right angles |
| C. | sum of the three angles less than six right angles and greater than two right angles |
| D. | if the sum of any two sides is π, the sum of the angles opposite them is also π |
| Answer» C. sum of the three angles less than six right angles and greater than two right angles | |
| 54. |
In a truly vertical photograph, |
| A. | principal point coincides the isocentre |
| B. | iso-centre coincides the plumb point |
| C. | plumb point coincides the principal point |
| D. | principal point, iso-centre and plumb point coincide |
| Answer» E. | |
| 55. |
The length of a parallel of λ latitude between two meridians is equal to difference in logitudes multiplied by |
| A. | sin λ |
| B. | cos λ |
| C. | tan λ |
| D. | cot λ. |
| Answer» C. tan Œª | |
| 56. |
The main object of the astronomer to obtain |
| A. | astronomical latitude |
| B. | astronomical longitude |
| C. | astronomical bearing |
| D. | all of these. |
| Answer» E. | |
| 57. |
The polaris remains below horizon at |
| A. | 10° N |
| B. | 50° N Latitude |
| C. | equator |
| D. | 5° S latitude. |
| Answer» E. | |
| 58. |
In a spherical triangle ABC right angled at C, sin b equals to |
| A. | sin c sin B |
| B. | cos c cos B |
| C. | tan c tan B |
| D. | sin c cos B |
| Answer» B. cos c cos B | |
| 59. |
At lower culmination, the pole star moves |
| A. | eastward |
| B. | westward |
| C. | northward |
| D. | southward. |
| Answer» B. westward | |
| 60. |
If the image of a triangulation station of R.L. 500 m is 4 cm from the principal point of a vertical photo taken from an altitude of 2000 m, above datum, the height displacement will be |
| A. | 2 mm |
| B. | 4 mm |
| C. | 6 mm |
| D. | 8 mm |
| Answer» E. | |
| 61. |
The altitude of a circumpolar star is maximum when it is |
| A. | at east elongation |
| B. | at upper culmination |
| C. | at west elongation |
| D. | at lower culmination. |
| Answer» C. at west elongation | |
| 62. |
The First Point of Aeries |
| A. | is the point in the celestial sphere where zero meridian crosses the celestial equator |
| B. | is usually denoted by the Greek letter γ |
| C. | is located near the very conspicuous rectangle of stars in the constellations of Pegasus and Andromeda. |
| D. | all the above. |
| Answer» E. | |
| 63. |
With standard meridian as 82° 30' E the standard time at longitude 90° E is 8 h 30 m. The local mean time at the place will be |
| A. | 7 h 00 m |
| B. | 7 h 30 m |
| C. | 8 h 00 m |
| D. | 8 h 30 m |
| Answer» E. | |
| 64. |
If S is the sum of three angles of a spherical triangle, the spherical excess equals |
| A. | S - 90° |
| B. | S - 180° |
| C. | S - 270° |
| D. | S - 360°. |
| Answer» C. S - 270¬∞ | |
| 65. |
If a star whose declination is 60° N culminates at zenith, its altitude at the lower culmination, is |
| A. | 10° |
| B. | 20° |
| C. | 30° |
| D. | 40° |
| Answer» D. 40¬∞ | |
| 66. |
The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between |
| A. | horizon and equator |
| B. | equator and zenith |
| C. | zenith and pole |
| D. | pole and horizon. |
| Answer» D. pole and horizon. | |
| 67. |
Pick up the incorrect statement from the following. The angular distance of hevenly bodies on observer's meridian measured from the pole, is |
| A. | co-declination |
| B. | co-altitude |
| C. | co-latitude |
| D. | polar distance |
| Answer» B. co-altitude | |
| 68. |
The position of the sun when its north declination is maximum is known as |
| A. | vernal equinox |
| B. | Autumnal equinox |
| C. | summer solstice |
| D. | winter solstice. |
| Answer» D. winter solstice. | |
| 69. |
If δ is the declination of the star and φ is the latitude of the observer, then the azimuth of the star at elongation is given by |
| A. | sin z = sec φ . cos δ |
| B. | cos z = sec φ . cos δ |
| C. | tan z = sec φ . cos δ |
| D. | none of these. |
| Answer» B. cos z = sec œÜ . cos Œ¥ | |
| 70. |
For adjusting a quadrilateral whose both the diagonals are observed, the equations of conditions involved, are |
| A. | two angle equations and two side equations |
| B. | one angle equation and three side equations |
| C. | three angle equations and one side equation |
| D. | none of these. |
| Answer» D. none of these. | |
| 71. |
Longitude of a place is the angular distance between the meridian of the place and |
| A. | the standard meridian |
| B. | the international date line |
| C. | that of Greenwich |
| D. | both (a) and (c) of above. |
| Answer» E. | |
| 72. |
If the equatorial distance between two meridians is 100 km, their distance at 60° latitude will be |
| A. | 1000 km |
| B. | 800 km |
| C. | 600 km |
| D. | 500 km |
| Answer» E. | |
| 73. |
Spring tides are caused when |
| A. | sun and moon are in line with earth |
| B. | solar tidal force acts opposite to lunar tidal force |
| C. | solar tidal force and lunar tidal force both coincide |
| D. | none of these. |
| Answer» D. none of these. | |
| 74. |
The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The declination of the star, is |
| A. | 80° |
| B. | 70° |
| C. | 60° |
| D. | 50° |
| Answer» D. 50¬∞ | |
| 75. |
In a spherical triangle ABC, right angled at C, sin b equals |
| A. | sin a cos A |
| B. | cos a sin A |
| C. | tan a cot A |
| D. | cot A tan a |
| Answer» D. cot A tan a | |
| 76. |
For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through |
| A. | isocentre |
| B. | plumb point |
| C. | principal point |
| D. | none of these. |
| Answer» B. plumb point | |
| 77. |
The difference of parallax for a given difference in elevation is independent of |
| A. | focal length of the camera |
| B. | overall size of the photo graphs |
| C. | percentage of overlap |
| D. | all the above. |
| Answer» E. | |
| 78. |
The slotted template method |
| A. | is prepared, by graphical method |
| B. | is suitable for large areas with less control |
| C. | is rapid and accurate |
| D. | may be done on any scale |
| Answer» E. | |
| 79. |
At upper culmination, the pole star moves |
| A. | eastward |
| B. | westward |
| C. | northward |
| D. | southward. |
| Answer» C. northward | |
| 80. |
Pick up the incorrect statement from the following. High oblique photographs |
| A. | may have tilt up to 30° |
| B. | may include the image of the horizon |
| C. | may not include the image of the horizon |
| D. | none of these. |
| Answer» E. | |
| 81. |
Homologous points are |
| A. | opposite corners of a photograph |
| B. | nodal points of the camera lens |
| C. | corresponding points on the ground and photograph |
| D. | plumb points of stereo pair of photographs. |
| Answer» D. plumb points of stereo pair of photographs. | |
| 82. |
The net ground area of a vertical photograph 20 cm x 20 cm on scale 1 : 10,000 having overlaps 60% and 30%, is |
| A. | 0.50 sq km |
| B. | 0.56 sq km |
| C. | 0.60 sq km |
| D. | 0.64 sq km. |
| Answer» E. | |
| 83. |
The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as |
| A. | principal point |
| B. | isocentre |
| C. | plumb point |
| D. | perspective centre. |
| Answer» C. plumb point | |
| 84. |
A star may culminate at zenith if its declination is |
| A. | greater than the longitude of the place |
| B. | less than the latitude of the place |
| C. | equal to the latitude of the place |
| D. | none of these. |
| Answer» D. none of these. | |
| 85. |
If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is |
| A. | 30° |
| B. | 35° |
| C. | 40° |
| D. | 45°. |
| Answer» D. 45¬∞. | |
| 86. |
The point at which sun's declination changes from north to south, is known as |
| A. | first point of Aeries |
| B. | first point of Libra |
| C. | vernal Equinox |
| D. | autumnal Equinox |
| Answer» E. | |
| 87. |
The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is |
| A. | 4.4 mm |
| B. | 5.5 mm |
| C. | 6.5 mm |
| D. | 7.5 mm |
| Answer» E. | |
| 88. |
G.M.T. corresponding to given mean time, equals |
| A. | L.M.T. - East longitude in time |
| B. | L.M.T. + East longitude in time |
| C. | L.M.T. - West longitude in time |
| D. | none of the these. |
| Answer» B. L.M.T. + East longitude in time | |
| 89. |
The method of surveying by triangula-tion was first introduced by the Dutchman Snell in |
| A. | 1600 |
| B. | 1615 |
| C. | 1630 |
| D. | 1650 |
| Answer» C. 1630 | |
| 90. |
The want of correspondence in stereo-photographs |
| A. | is a good property |
| B. | is a function of tilt |
| C. | is not affected by the change of flying height between photographs |
| D. | is minimum when θ is 3°. |
| Answer» C. is not affected by the change of flying height between photographs | |
| 91. |
Circumpolar stars |
| A. | rotate round the north pole |
| B. | rotate round the celestial pole |
| C. | remain always above the horizon |
| D. | are seldom seen near the pole star |
| Answer» D. are seldom seen near the pole star | |
| 92. |
The angular distance of a heavenly body from the equator, measured along its meridian, is called |
| A. | declination |
| B. | altitude |
| C. | zenith distance |
| D. | co-latitude. |
| Answer» B. altitude | |
| 93. |
At the first point of Aeries, the sun moves |
| A. | northward |
| B. | southward |
| C. | from south to north of the equator |
| D. | from north to south of the equator. |
| Answer» D. from north to south of the equator. | |
| 94. |
A star is said to elongate |
| A. | when the star momentarily moves vertically |
| B. | when the angle at the star of the spherical triangle is 90° |
| C. | when the star's declination is greater than the observer's latitude |
| D. | all the above. |
| Answer» E. | |
| 95. |
The longitudes of two places at latitude 60° N are 93° E and 97° W. Their departure is |
| A. | 5100 nautical miles |
| B. | 5700 nautical miles |
| C. | 120 nautical miles |
| D. | 500 nautical miles |
| Answer» C. 120 nautical miles | |
| 96. |
Limiting gradient for locating the base line on evenly-sloping ground, is |
| A. | 1 in 12 |
| B. | 1 in 10 |
| C. | 1 in 8 |
| D. | 1 in 6. |
| Answer» B. 1 in 10 | |
| 97. |
From the principal point the horizon point lies on the principal line at a distance of |
| A. | f tan θ |
| B. | f sin θ |
| C. | f cot θ |
| D. | f cos θ. |
| Answer» B. f sin Œ∏ | |
| 98. |
The meridian of a place is |
| A. | a great circle passing through the place and the poles |
| B. | a great circle whose plane is perpendicular to the axis of rotation and it also passes through the place |
| C. | a semi-circle which passes through the place and is terminated at the poles |
| D. | an arc of the great circle which passes through the place and is perpendicular to the equator. |
| Answer» D. an arc of the great circle which passes through the place and is perpendicular to the equator. | |
| 99. |
The coverage is least if photography is |
| A. | high oblique |
| B. | low oblique |
| C. | vertical |
| D. | none of these. |
| Answer» D. none of these. | |
| 100. |
The position of a heavenly body on the celestial sphere can be completely specified by |
| A. | its altitude and azimuth |
| B. | its declination and hour angle |
| C. | its declination and right ascension |
| D. | all the above. |
| Answer» E. | |