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This section includes 331 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
101. |
*/*_The following sights are taken on a “turning point”? |
A. | foresight only |
B. | backsight only |
C. | foresight and backsight |
D. | foresight and intermediate sight |
Answer» D. foresight and intermediate sight | |
102. |
*/*_Refraction correction? |
A. | completely eliminates curvature correction |
B. | partially eliminates curvature correction |
C. | adds to the curvature correction |
D. | has no effect on curvature correction |
Answer» C. adds to the curvature correction | |
103. |
*/*_Latitude of the observer's position is equal to altitude of? |
A. | North pole |
B. | Pole star |
C. | Celestial pole |
D. | All the above |
Answer» D. All the above | |
104. |
*/*_Closed contours, with higher value inwards, represent a? |
A. | depression |
B. | hillock |
C. | plain surface |
D. | none of the above |
Answer» C. plain surface | |
105. |
*/*_The error due to eccentricity of inner and outer axes can be eliminated by? |
A. | reading both verniers and taking the mean of the two |
B. | taking both face observations and taking the mean of the two |
C. | double sighting |
D. | taking mean of several readings distributed over different portions of the graduated circle |
Answer» B. taking both face observations and taking the mean of the two | |
106. |
*/*_The great circle whose plane is perpendicular to the axis of rotation of the earth, is called? |
A. | Equator |
B. | Terrestrial equator |
C. | 0° latitude |
D. | All the above |
Answer» E. | |
107. |
*/*_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. | |
108. |
*/*_For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through? |
A. | Isocenter |
B. | Plumb point |
C. | Principal point |
D. | None of these |
Answer» B. Plumb point | |
109. |
*/*_The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between? |
A. | Horizon and equator |
B. | Zenith and pole |
C. | Equator and zenith |
D. | Pole and horizon |
Answer» B. Zenith and pole | |
110. |
*/*_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 |
Answer» E. | |
111. |
*/*_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 | |
112. |
*/*_The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is? |
A. | f/H sec θ |
B. | f sec θ/H |
C. | f/H |
D. | f/H cos ½θ |
Answer» B. f sec ≈í‚àè/H | |
113. |
*/*_Transit rule of adjusting the consecutive coordinates of a traverse is used where? |
A. | linear and angular measurements of the traverse are of equal accuracy |
B. | angular measurements are more accurate than linear measurements |
C. | linear measurements are more accurate than angular measurements |
D. | all of the above |
Answer» C. linear measurements are more accurate than angular measurements | |
114. |
*/*_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. | |
115. |
*/*_Pick up the incorrect statement from the following:? |
A. | In truly vertical photographs without relief angles are true at the plumb point |
B. | In tilted photographs without relief, angles are true at the iso-centre |
C. | In tilled photographs with relief, angles are true at the principal point |
D. | None of these |
Answer» D. None of these | |
116. |
*/*_If ‘f’ is the focal length of the camera lens and ‘θ’ is the angle of tilt, the distance of the plumb point from the principal point will be? |
A. | f sin θ |
B. | f cos θ |
C. | f tan θ |
D. | f sec θ |
Answer» D. f sec ≈í‚àè | |
117. |
*/*_In the prismatic compass? |
A. | the magnetic needle moves with the box |
B. | the line of the sight does not move with the box |
C. | the magnetic needle and graduated circle do not move with the box |
D. | the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction |
Answer» D. the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction | |
118. |
*/*_To avoid large centering error with very short legs, observations are generally made? |
A. | To chain pins |
B. | By using optical system for centering the theodolite |
C. | To a target fixed on theodolite tripod on which theodolite may be fitted easily |
D. | All the above |
Answer» D. All the above | |
119. |
%_To avoid large centering error with very short legs, observations are generally made_% |
A. | To chain pins |
B. | By using optical system for centering the theodolite |
C. | To a target fixed on theodolite tripod on which theodolite may be fitted easily |
D. | All the above |
Answer» D. All the above | |
120. |
%_The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is_% |
A. | f/H sec θ |
B. | f sec θ/H |
C. | f/H |
D. | f/H cos ½θ |
Answer» B. f sec ≈í‚àè/H | |
121. |
%_If ‘f’ is the focal length of the camera lens and ‘θ’ is the angle of tilt, the distance of the plumb point from the principal point will be_% |
A. | f sin θ |
B. | f cos θ |
C. | f tan θ |
D. | f sec θ |
Answer» D. f sec ≈í‚àè | |
122. |
%_In the prismatic compass_% |
A. | the magnetic needle moves with the box |
B. | the line of the sight does not move with the box |
C. | the magnetic needle and graduated circle do not move with the box |
D. | the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction |
Answer» D. the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction | |
123. |
%_If the lower clamp screw is tightened and upper clamp screw is loosened, the theodolite may be rotated_% |
A. | on its outer spindle with a relative motion between the vernier and graduated scale of lower plate |
B. | on its outer spindle without a relative motion between the vernier and gra-duated scale of lower plate |
C. | on its inner spindle with a relative motion between the vernier and the graduated scale of lower plate |
D. | on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate |
Answer» D. on its inner spindle without a relative motion between the vernier and the graduated scale of lower plate | |
124. |
%_After fixing the plane table to the tripod, the main operations which are needed at each plane table station are (i) Levelling (ii) Orientation (iii) CenteringThe correct sequence of these operations is_% |
A. | (i), (ii), (iii) |
B. | (i), (iii), (ii) |
C. | (iii), (i), (ii) |
D. | (ii), (iii), (i) |
Answer» C. (iii), (i), (ii) | |
125. |
%_Subtense bar is an instrument used for_% |
A. | levelling |
B. | measurement of horizontal distances in plane areas |
C. | measurement of horizontal distances in undulated areas |
D. | measurement of angles |
Answer» D. measurement of angles | |
126. |
%_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 | |
127. |
%_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. | |
128. |
%_Transit rule of adjusting the consecutive coordinates of a traverse is used where_% |
A. | linear and angular measurements of the traverse are of equal accuracy |
B. | angular measurements are more accurate than linear measurements |
C. | linear measurements are more accurate than angular measurements |
D. | all of the above |
Answer» C. linear measurements are more accurate than angular measurements | |
129. |
%_The coverage is least if photography is_% |
A. | High oblique |
B. | Low oblique |
C. | Vertical |
D. | None of these |
Answer» D. None of these | |
130. |
%_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 | |
131. |
%_In a truly vertical photograph,_% |
A. | Principal point coincides the isocenter |
B. | Iso-centre coincides the plumb point |
C. | Plumb point coincides the principal point |
D. | All the above |
Answer» E. | |
132. |
%_If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is_% |
A. | 99.345 m |
B. | 100.345 m |
C. | 100.655 m |
D. | 101.870 m |
Answer» B. 100.345 m | |
133. |
%_The maximum tolerance in a 20 m chain is_% |
A. | ±2 mm |
B. | ±3 mm |
C. | ±5 mm |
D. | ±8 mm |
Answer» D. ¬¨¬±8 mm | |
134. |
%_If θ and δ be the latitude of a place and declination of a star respectively, the upper culmination of the star will be north of zenith if its zenith distance, is_% |
A. | δ - θ |
B. | θ - δ |
C. | θ + δ |
D. | (θ + δ)/2 |
Answer» B. ≈í‚àè - ≈í¬• | |
135. |
%_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¬¨‚àû | |
136. |
%_If the distance between the projectors is altered by a movement along X-axis of one projector,_% |
A. | The length of the air base is increased |
B. | The scale of the model is altered |
C. | y-parallax is not affected |
D. | All the above |
Answer» E. | |
137. |
%_The difference between a level line and a horizontal line is that_% |
A. | level line is a curved line while hori-zontal line is a straight line |
B. | level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line |
C. | horizontal line is normal to plumb line while level line may not be normal to the plumb line |
D. | both are same |
Answer» B. level line is normal to plumb line while horizontal line may not be normal to plumb line at the tangent point to level line | |
138. |
%_The following points form a pair of homologous points:_% |
A. | Photo principal point and ground principal point |
B. | Photo isocenter and ground isocenter |
C. | Photo plumb point and ground plumb point |
D. | All the above |
Answer» E. | |
139. |
%_An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as_% |
A. | contour line |
B. | horizontal equivalent |
C. | contour interval |
D. | contour gradient |
Answer» E. | |
140. |
%_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. | All the above |
Answer» E. | |
141. |
%_If the focal length of the object glass is 25 cm and the distance from object glass to the trunnion axis is 15 cm, the additive constant is_% |
A. | 0.1 |
B. | 0.4 |
C. | 0.6 |
D. | 1.33 |
Answer» C. 0.6 | |
142. |
%_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. | |
143. |
%_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 | |
144. |
_ For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through$? |
A. | Isocenter |
B. | Plumb point |
C. | Principal point |
D. | None of these |
Answer» B. Plumb point | |
145. |
_ The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between$? |
A. | Horizon and equator |
B. | Zenith and pole |
C. | Equator and zenith |
D. | Pole and horizon |
Answer» B. Zenith and pole | |
146. |
_ The great circle whose plane is perpendicular to the axis of rotation of the earth, is called$? |
A. | Equator |
B. | Terrestrial equator |
C. | 0° latitude |
D. | All the above |
Answer» E. | |
147. |
_ The Polaris describes a small circle round the pole whose radius is approximately$? |
A. | 1° |
B. | 2° |
C. | 3° |
D. | 4° |
Answer» B. 2¬¨‚àû | |
148. |
_ The nautical mile is the length of$? |
A. | 1 minute of latitude |
B. | 1 minute of longitude |
C. | 1 degree of latitude |
D. | 1 degree of longitude |
Answer» C. 1 degree of latitude | |
149. |
_ The shortest distance between two places measured along the surface of the earth, is$? |
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 | |
150. |
_ 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 |
Answer» E. | |