MCQOPTIONS
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MCQOPTIONS
This section includes 492 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Direct method of contouring is_________________? |
| A. | a quick method |
| B. | adopted for large surveys only |
| C. | most accurate method |
| D. | suitable for hilly terrains |
| Answer» D. suitable for hilly terrains | |
| 152. |
Different grades are joined together by a ________________? |
| A. | compound curve |
| B. | transition curve |
| C. | reverse curve |
| D. | vertical curve |
| Answer» E. | |
| 153. |
Detailed plotting is generally done by________________? |
| A. | radiation |
| B. | traversing |
| C. | resection |
| D. | all of the above |
| Answer» B. traversing | |
| 154. |
Cross staff is an instrument used for________________? |
| A. | measuring approximate horizontal angles |
| B. | setting out right angles |
| C. | measuring bearings of the lines |
| D. | none of the above |
| Answer» C. measuring bearings of the lines | |
| 155. |
Contour interval is_______________? |
| A. | inversely proportional to the scale of the map |
| B. | directly proportional to the flatness of ground |
| C. | larger for accurate works |
| D. | larger if the time available is more |
| Answer» B. directly proportional to the flatness of ground | |
| 156. |
Closed contours, with higher value inwards, represent a_______________? |
| A. | depression |
| B. | hillock |
| C. | plain surface |
| D. | none of the above |
| Answer» C. plain surface | |
| 157. |
Bowditch rule is applied to_________________? |
| A. | an open traverse for graphical adjustment |
| B. | a closed traverse for adjustment of closing error |
| C. | determine the effect of local attraction |
| D. | none of the above |
| Answer» C. determine the effect of local attraction | |
| 158. |
Benchmark is established by________________? |
| A. | hypsometry |
| B. | barometric levelling |
| C. | spirit levelling |
| D. | trigonometrical levelling |
| Answer» D. trigonometrical levelling | |
| 159. |
As applied to staff readings, the corrections for curvature and refraction are respectively The above table shows a part of a level field book. The value of X should be________________? |
| A. | 98.70 |
| B. | 100.00 |
| C. | 102.30 |
| D. | 103.30 |
| Answer» C. 102.30 | |
| 160. |
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. | |
| 161. |
A’level line’is a______________? |
| A. | horizontal line |
| B. | line parallel to the mean spheriodal surface of earth |
| C. | line passing through the center of cross hairs and the center of eye piece |
| D. | line passing through the objective lens and the eye-piece of a dumpy or tilting level |
| Answer» C. line passing through the center of cross hairs and the center of eye piece | |
| 162. |
Agate cap is fitted with a_________________? |
| A. | cross staff |
| B. | level |
| C. | chain |
| D. | prismatic compass |
| Answer» E. | |
| 163. |
After fixing the plane table to the tripod, the main operations which are needed at each plane table station are ______________ ?_x005F_x000D_1. levelling_x005F_x000D_2. orientation_x005F_x000D_3. centering_x005F_x000D_The correct sequence of these operations is |
| A. | (1), (2),(3) |
| B. | (1), (3), (2) |
| C. | (3), (1), (2) |
| D. | (2), (3), (1) |
| Answer» C. (3), (1), (2) | |
| 164. |
A telescope is said to be inverted if its______________? |
| A. | vertical circle is to its right and the bubble of the telescope is down |
| B. | vertical circle is to its right and the bubble of the telescope is up |
| C. | vertical circle is to its left and the bubble of the telescope is down |
| D. | vertical circle is to its left and the bubble of the telescope is up |
| Answer» B. vertical circle is to its right and the bubble of the telescope is up | |
| 165. |
A series of closely spaced contour lines represents a___________________? |
| A. | steep slope |
| B. | gentle slope |
| C. | uniform slope |
| D. | plane surface |
| Answer» B. gentle slope | |
| 166. |
A negative declination shows that the magnetic meridian is to the________________? |
| A. | eastern side of the true meridian |
| B. | western side of the true meridian |
| C. | southern side of the true meridian |
| D. | none of the above |
| Answer» C. southern side of the true meridian | |
| 167. |
A metallic tape is made of ______________ ? |
| A. | steel |
| B. | invar |
| C. | linen |
| D. | cloth and wires |
| Answer» E. | |
| 168. |
Keeping the instrument height as 1 m, length of staff 4 m, the up gradient of the ground 1 in 10, the sight on the up slope must be less than |
| A. | 25 cm |
| B. | 20 m |
| C. | 45 m |
| D. | 10 m |
| Answer» D. 10 m | |
| 169. |
It θ is the probable error of an observed bearing of a line of length l, the error over the whole length of the traverse of n lines of length l is |
| A. | l n |
| B. | n |
| C. | θ |
| D. | θ n |
| Answer» B. n | |
| 170. |
There are two stations A and B. Which of the following statements is correct : |
| A. | the fore bearing of AB is AB |
| B. | the back bearing of AB is BA |
| C. | the fore and back bearings of AB differ by 180° |
| D. | all the above. |
| Answer» E. | |
| 171. |
If 50 m point of a 100 m tape is 50 cm off line, and 50 m sections are straight, an error is generated equal to |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | . |
| Answer» D. . | |
| 172. |
The sag of 50 m tape weighing 4 kg under 5 kg tension is roughly |
| A. | 0.043 m |
| B. | 0.053 m |
| C. | 0.063 m |
| D. | 0.073 m |
| E. | 0.083 m |
| Answer» F. | |
| 173. |
If θ is the slope of the ground and l is the measured distance, the correction is |
| A. | 2l sin2 θ/2 |
| B. | 2l cos2 θ/2 |
| C. | 2l tan2 θ/2 |
| D. | 2l cot2 θ/2. |
| Answer» B. 2l cos2 θ/2 | |
| 174. |
Which of the following introduces an error of about 1 in 1000 if 20 m chain is used |
| A. | length of chain 20 mm wrong |
| B. | one end of the chain 0.9 m off the line |
| C. | one end of chain 0.9 m higher than the other |
| D. | middle of the chain 0.45 m off the line |
| E. | all the above. |
| Answer» F. | |
| 175. |
In a theodolite |
| A. | the telescope axis is perpendicular to transit axis |
| B. | the axis of rotation is perpendicular to transit axis |
| C. | the telescope axis, the transit axis and the rotation axis pass through the centre of theodolite |
| D. | all the above. |
| Answer» E. | |
| 176. |
If α and β be the elevations of two objects A and B respectively, θ be the angle observed by a sextant. The correct horizontal angle is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | none of these. |
| Answer» B. [B]. | |
| 177. |
The minimum range for sliding the focusing lens in the internal focusing telescope for focusing at all distances beyond 4 m is |
| A. | 5 mm |
| B. | 10 mm |
| C. | 15 mm |
| D. | 20 mm. |
| Answer» E. | |
| 178. |
The Huygen's telescope eye piece |
| A. | is aplanatic |
| B. | achromatic |
| C. | both (a) and (b) |
| D. | neither (a) nor (b). |
| Answer» D. neither (a) nor (b). | |
| 179. |
The ratio of the radius and apex distance of a curve deflecting through Δ°, is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» B. [B]. | |
| 180. |
The ratio of the length of long chord and the tangent length of a circular curve of radius R deflecting through angle Δ, is |
| A. | sin |
| B. | cos |
| C. | tan |
| D. | 2 sin |
| E. | 2 cos . |
| Answer» F. | |
| 181. |
The bearing of C from A is N 30° E and from B, 50 metres east of A, is N 60° W. The departure of C from A is |
| A. | 50 m |
| B. | 50 3 m |
| C. | 25 3 m |
| D. | 25 m |
| Answer» E. | |
| 182. |
The distance between the point of intersection of an up grade + g1% and downgrade g2% and the highest point of the vertical curve of length L, is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | . |
| Answer» E. | |
| 183. |
A sewer is laid from a manhole A to a manhole B, 250 m away along a gradient of 1 in 125. If the reduced level of the invert at A is 205.75 m and the height of the boning rod is 3 m, the reduced level of the sight rail at B, is |
| A. | 208.75 m |
| B. | 202.75 m |
| C. | 206.75 m |
| D. | 211.75 m |
| Answer» D. 211.75 m | |
| 184. |
The bearings of the lines AB and BC are 146° 30' and 68° 30'. The included angle ABC is |
| A. | 102° |
| B. | 78° |
| C. | 45° |
| D. | none of these. |
| Answer» B. 78° | |
| 185. |
A standard steel tape of length 30 m and cross-section 15 x 1.0 mm was standardised at 25°C and at 30 kg pull. While measuring a base line at the same temperature, the pull applied was 40 kg. If the modulus of elasticity of steel tape is 2.2 x 106 kg/cm2, the correction to be applied is |
| A. | - 0.000909 m |
| B. | + 0.0909 m |
| C. | 0.000909 m |
| D. | none of these |
| Answer» B. + 0.0909 m | |
| 186. |
The bearing of AB is 190° and that of CB is 260° 30'. The included angle ABC, is |
| A. | 80° 30' |
| B. | 99° 30' |
| C. | 70° 30' |
| D. | none of these |
| Answer» D. none of these | |
| 187. |
If L is the specified length of a tape, L1 its actual length and S the measured distance, then, the true distance is given by the formula, |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | . |
| Answer» B. [B]. | |
| 188. |
The magnetic bearing of a line is 32° and the magnetic declination is 10° 15' W. The true bearing is |
| A. | 21° 45' |
| B. | 42° 15' |
| C. | 42° 15' W |
| D. | 21° 45' W |
| Answer» B. 42° 15' | |
| 189. |
ABCD is a regular parallelogram plot of land whose angle BAD is 60°. If the bearing of the line AB is 30°, the bearing of CD, is |
| A. | 90° |
| B. | 120° |
| C. | 210° |
| D. | 270° |
| Answer» D. 270° | |
| 190. |
The bearing of line AB is 152° 30' and angle ABC measured clockwise is 124° 28'. The bearing of BC is |
| A. | 27° 52' |
| B. | 96° 58' |
| C. | 148° 08' |
| D. | 186° 58' |
| Answer» C. 148° 08' | |
| 191. |
The whole circle bearing of a line is 290°. Its reduced bearing is |
| A. | N 20° E |
| B. | N 20° W |
| C. | N 70° W |
| D. | S 70° E |
| Answer» D. S 70° E | |
| 192. |
The bearing of lines OA and OB are 16° 10' and 332° 18', the value of the included angle BOA is |
| A. | 316° 10' |
| B. | 158° 28' |
| C. | 348° 08' |
| D. | 43° 52' |
| Answer» E. | |
| 193. |
The bearings of two traverse legs AB and BC are N52° 45' E and N34° 30' E respectively. The deflection angle is |
| A. | 18° 15' E |
| B. | 18° 15' N |
| C. | 18° 15' W |
| D. | 18° 15' R |
| E. | 18° 15' L |
| Answer» F. | |
| 194. |
α, β are the horizontal angles measured at the ends of a base line AB to a hill top whose angle of elevation from station A is θ°. The height of the hill top above the trunnion axis of the theodolite station, is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| Answer» E. | |
| 195. |
The 'point of curve' of a simple circular curve, is |
| A. | point of tangency |
| B. | point of commencement |
| C. | point of intersection |
| D. | mid-point of the curve |
| Answer» C. point of intersection | |
| 196. |
If arithmetic sum of latitudes of a closed traverse is ∑Lat and closing error in latitude is dx, the correction for a side whose latitude is l, as given by Transit Rule, is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | none of these. |
| Answer» B. [B]. | |
| 197. |
If L is the perimeter of a closed traverse, ΔD is the closing error in departure, the correction for the departure of a traverse side of length l, according to Bowditch rule, is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | . |
| Answer» E. | |
| 198. |
If the area calculated form the plan plotted with measurements by an erroneous chain, accurate area of the plan is |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | [D]. |
| E. | none of the above |
| Answer» E. none of the above | |
| 199. |
If α is the angle between the polar ray and the tangent at the point of commencement of a lemniscate curve, the equation of the curve, is |
| A. | l = ksin α |
| B. | l = ksin 2α |
| C. | l = ksin 3α |
| D. | l = ktan 2α |
| E. | l = kcos 2α |
| Answer» C. l = ksin 3α | |
| 200. |
If the sight distance (S) is equal to the length of the vertical-curve (2l) joining two grades g1% and - g2%, the height of the apex will be |
| A. | [A]. |
| B. | [B]. |
| C. | [C]. |
| D. | none of these. |
| Answer» C. [C]. | |