MCQOPTIONS
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MCQOPTIONS
This section includes 195 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
In field astronomy, the quantities observed are entirely |
| A. | lengths |
| B. | angles |
| C. | heights |
| D. | all of these. |
| Answer» C. heights | |
| 52. |
Triangulation surveys are carried out for providing |
| A. | planimetric control |
| B. | height control |
| C. | both planimetric and height control |
| D. | none of these. |
| Answer» D. none of these. | |
| 53. |
The rate of change of parallax dp/dh with respect to change in h, may be expressed as |
| A. | fB/(H - h) |
| B. | fB/(H - h)² |
| C. | fB/(H + h) |
| D. | fB/(H + h)² |
| Answer» C. fB/(H + h) | |
| 54. |
The negative sign is assigned to |
| A. | reduction to mean sea level |
| B. | correction for horizontal alignment |
| C. | correction for slope |
| D. | all the above. |
| Answer» E. | |
| 55. |
At eastern elongation, the pole star moves |
| A. | eastward |
| B. | westward |
| C. | northward |
| D. | southward. |
| Answer» D. southward. | |
| 56. |
Pick up the correct statement for horizontal photographs. |
| A. | Parallel lines do not appear parallel in central projection |
| B. | The two sides of a road meet at the vanishing point |
| C. | The lines parallel to the negative plane are projected as parallel lines |
| D. | All the above. |
| Answer» E. | |
| 57. |
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 | |
| 58. |
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. | all the above. |
| Answer» E. | |
| 59. |
Homologous point is |
| A. | photo principal point |
| B. | ground principal point |
| C. | ground isocentre |
| D. | all the above. |
| Answer» E. | |
| 60. |
Longitudes are measured from 0° to |
| A. | 180° eastward |
| B. | 180° westward |
| C. | 180° east or westward |
| D. | 360° eastward |
| Answer» D. 360° eastward | |
| 61. |
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°. | |
| 62. |
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. | |
| 63. |
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. | 10 mm. |
| Answer» E. | |
| 64. |
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. | both (a) and (b) above. |
| Answer» E. | |
| 65. |
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. | |
| 66. |
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° | |
| 67. |
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. | |
| 68. |
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. | |
| 69. |
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 | |
| 70. |
A plate parallel is the line on the plane of the negative |
| A. | parallel to the principal line |
| B. | perpendicular to the principal line |
| C. | along the bisector of the angle between the principal line and a perpendicular line through principal plane |
| D. | none of these. |
| Answer» C. along the bisector of the angle between the principal line and a perpendicular line through principal plane | |
| 71. |
The value of geo-centric parallax to be added to the observed altitude of sun is |
| A. | 9" cos α |
| B. | 9" sin α |
| C. | 9" tan α |
| D. | 9" cot α. |
| Answer» B. 9" sin α | |
| 72. |
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. | 9 h 00 m. |
| Answer» E. | |
| 73. |
If α is the observed altitude, the refraction correction in seconds, is |
| A. | 58" cot α |
| B. | 58" tan α |
| C. | 58 sin α |
| D. | 58 cos α. |
| Answer» B. 58" tan α | |
| 74. |
The great circle which passes through the zenith, nadir and the poles, is known as |
| A. | meridian |
| B. | vertical circle |
| C. | prime vertical |
| D. | none of these. |
| Answer» B. vertical circle | |
| 75. |
The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is |
| A. | 80° |
| B. | 70° |
| C. | 60° |
| D. | 40°. |
| Answer» E. | |
| 76. |
If v, t and f/H are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 77. |
The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 78. |
The maximum error in radial line assumption, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» B. B | |
| 79. |
International date line is located along |
| A. | standard meridian |
| B. | Greenwich meridian |
| C. | equator |
| D. | 180° longitude |
| Answer» E. | |
| 80. |
Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel |
| A. | 24% |
| B. | 36% |
| C. | 40% |
| D. | 60%. |
| Answer» C. 40% | |
| 81. |
The angle between the direction of star and the direction of earth's axis of rotation is called |
| A. | co-declination |
| B. | co-latitude |
| C. | declination |
| D. | latitude. |
| Answer» B. co-latitude | |
| 82. |
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 | |
| 83. |
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. | |
| 84. |
For a spherical triangle ABC, pick up incorrect statement |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 85. |
Perspective centre relates to |
| A. | parallel projection |
| B. | orthogonal projection |
| C. | central projection |
| D. | none of these. |
| Answer» D. none of these. | |
| 86. |
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. | all the above. |
| Answer» E. | |
| 87. |
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. | all the above. |
| Answer» E. | |
| 88. |
The shortest distance between two places measured along the surface of the earth, is |
| A. | length of the equator between their longitudes |
| B. | length of the parallel between their longitudes |
| C. | length of the arc of the great circle passing through them |
| D. | none of these. |
| Answer» D. none of these. | |
| 89. |
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 | |
| 90. |
The correction for parallax, is |
| A. | - 8".8 cos α |
| B. | + .8" sin α |
| C. | + 8".8 cos α |
| D. | - 8".8 cos α. |
| Answer» D. - 8".8 cos α. | |
| 91. |
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 | |
| 92. |
The point on the celestial sphere vertically below the observer's position, is called |
| A. | zenith |
| B. | celestial point |
| C. | nadir |
| D. | pole. |
| Answer» D. pole. | |
| 93. |
If θ and δ 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. | δ - θ |
| B. | θ - δ |
| C. | θ + δ |
| D. | (θ - δ)/2 |
| Answer» C. θ + δ | |
| 94. |
In a tropical year, the number of sidereal days are |
| A. | one less than mean solar days |
| B. | one more than mean solar days |
| C. | equal to mean solar days |
| D. | none of these. |
| Answer» C. equal to mean solar days | |
| 95. |
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. | |
| 96. |
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 | |
| 97. |
Stellar astronomy deals with |
| A. | plane surveying |
| B. | geodetic surveying |
| C. | star observations |
| D. | planet observations. |
| Answer» D. planet observations. | |
| 98. |
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 | |
| 99. |
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. | |
| 100. |
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. | |