MCQOPTIONS
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MCQOPTIONS
This section includes 146 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
The state of the soil when plants fail to extract sufficient water for their requirements, is |
| A. | maximum saturated point |
| B. | permanent wilting point |
| C. | ultimate utilisation point |
| D. | none of these. |
| Answer» C. ultimate utilisation point | |
| 102. |
The scour depth D of a river during flood, may be calculated from the Lacey's equation |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 103. |
In Montague type fall |
| A. | a straight glacis is provided |
| B. | a circular glacis is provided |
| C. | a parabolic glacis is provided |
| D. | no glacis is provided. |
| Answer» D. no glacis is provided. | |
| 104. |
A minimum of 90 cm free board is provided if the discharge in the canal is between |
| A. | 30 to 33 cumecs |
| B. | 30 to 60 cumecs |
| C. | Over 60 cumecs |
| D. | Over 100 cumecs |
| Answer» D. Over 100 cumecs | |
| 105. |
The depth of the crest of a scouring sluice below the crest of a head regulator, is generally kept |
| A. | 0.20 m |
| B. | 1.20 m |
| C. | 2.20 m |
| D. | 3.20 m |
| Answer» C. 2.20 m | |
| 106. |
A hydraulic jump is generally formed when a stream moving with |
| A. | a hyper-critical velocity meets a stream moving with a critical velocity |
| B. | a hyper-critical velocity meets a stream moving with a hyper-critical velocity |
| C. | A hyper-critical velocity meets a stream moving with a sub-critical velocity |
| D. | a sub-critical velocity meets a stream moving with a hyper-critical velocity. |
| Answer» D. a sub-critical velocity meets a stream moving with a hyper-critical velocity. | |
| 107. |
The intensity of irrigation means |
| A. | percentage of culturable commanded area to be irrigated annually |
| B. | percentage of gross commanded area to be irrigated annually |
| C. | percentage of the mean of culturable commanded area and the gross commanded area to be irrigated annually |
| D. | total depth of water supplied by the number of waterings. |
| Answer» B. percentage of gross commanded area to be irrigated annually | |
| 108. |
The saturation line is the line up to which banks get saturated after the canal runs for some time. The saturation gradient in ordinary loam soil, is generally |
| A. | 2 : 1 |
| B. | 3 : 1 |
| C. | 4 : 1 |
| D. | 5 : 1 |
| Answer» D. 5 : 1 | |
| 109. |
The depth of rice root zone, is |
| A. | 50 cm |
| B. | 60 cm |
| C. | 70 cm |
| D. | 90 cm |
| Answer» E. | |
| 110. |
The optimum depth of kor watering for a rice crop, is |
| A. | 23.0 cm |
| B. | 19.0 cm |
| C. | 17.5 cm |
| D. | 13.5 cm |
| Answer» C. 17.5 cm | |
| 111. |
Attracting groynes are built |
| A. | perpendicular to the bank |
| B. | inclined down stream |
| C. | inclined up stream |
| D. | none of these. |
| Answer» C. inclined up stream | |
| 112. |
According to Lacey, depth of scour in a river depends upon the straightness of the reach. If D is the depth of scour in regime flow in a right angled bend, it is |
| A. | 1.25 D |
| B. | 1.50 D |
| C. | 1.75 D |
| D. | 2.00 D |
| Answer» E. | |
| 113. |
While deciding the alignment of a proposed canal taking off from a river at B, three alignments of approximately equal lengths are available. These cross a drainages at C1, C2 and C3 where drainage bed levels C1 > C2 > C3, you will provide at site C3 |
| A. | an aqueduct |
| B. | a syphon aqueduct |
| C. | a super passage |
| D. | a syphon. |
| Answer» B. a syphon aqueduct | |
| 114. |
If water table is comparatively high, the irrigation canal becomes useless, due to |
| A. | large amount of seepage |
| B. | water logging of the cultivated areas |
| C. | uncertain water demand |
| D. | all the above. |
| Answer» E. | |
| 115. |
For the stability of a structure against seepage pressure according to Khosla's creep theory, the critical gradient is |
| A. | zero |
| B. | 0.25 |
| C. | 0.50 |
| D. | 1.00 |
| Answer» E. | |
| 116. |
If the straight sides of a triangular section of a lined canal with circular bottom of radius D, make an angle θ with horizontal, the hydraulic mean depth is |
| A. | D |
| B. | D/2 |
| C. | D/3 |
| D. | D/4 |
| Answer» C. D/3 | |
| 117. |
The crest level of a canal diversion head work, depends upon |
| A. | F.S.L. of the canal |
| B. | discharge perimeters |
| C. | pond level |
| D. | all the above |
| Answer» E. | |
| 118. |
When a canal and a drainage approach each other at the same level, the structure so provided, is |
| A. | an aqueduct |
| B. | a syphon |
| C. | a level crossing |
| D. | inlet and outlet. |
| Answer» D. inlet and outlet. | |
| 119. |
If H and d are the water depth and drop in the bed level at a Sarda fall, the width B of the trapezoidal crest, is given by |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 120. |
To hold hydraulic jumps, baffle walls are provided in |
| A. | Sarda type falls |
| B. | English type falls |
| C. | Montague type falls |
| D. | Vertical type falls. |
| Answer» C. Montague type falls | |
| 121. |
For a given discharge in a channel, Blench curves give the relationship between the loss of head (HL) and |
| A. | specific energy up-stream |
| B. | specific energy down-stream |
| C. | critical depth of water down-stream |
| D. | depth of water down-stream |
| Answer» C. critical depth of water down-stream | |
| 122. |
In north Indian Plains, optimum depth of kor watering for wheat, is |
| A. | 23.0 cm |
| B. | 19.0 cm |
| C. | 17.5 cm |
| D. | 13.5 cm |
| Answer» E. | |
| 123. |
Cross regulators in main canals are provided |
| A. | to regulate water supply in the distributaries |
| B. | to increase water head upstream when a main canal is running with low supplies |
| C. | to overflow excessive flow water |
| D. | none of these. |
| Answer» C. to overflow excessive flow water | |
| 124. |
A river training work is generally required when the river is |
| A. | meandering |
| B. | aggrading |
| C. | degrading |
| D. | all the above. |
| Answer» B. aggrading | |
| 125. |
For a standing crop, the consumptive use of water is equal to the depth of water |
| A. | transpired by the crop |
| B. | evaporated by the crop |
| C. | transpired and evaporated by the crop |
| D. | used by the crop in transpiration, evaporation and also the quantity of water evaporated from adjacent soil. |
| Answer» E. | |
| 126. |
Side slopes generally kept for canals in loam soil, are : |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 127. |
Fundamental momentum equation for a hydraulic jump, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» C. C | |
| 128. |
If B and d are the bed width and depth of a channel in metres, the combined losses due to evaporation and seepage in cumecs per kilometre length of the channel, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» E. | |
| 129. |
If q is the discharge per unit width of a channel and D1 D2 are the depths of water before and after hydraulic jump, the following relationship is true |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 130. |
The discharge over a trapezoidal crest of a Sarda fall with free over fall conditions, is |
| A. | A |
| B. | B |
| C. | C |
| D. | D |
| Answer» D. D | |
| 131. |
While deciding the alignment of a proposed canal taking off from a river at B , three alignments of approximately equal lengths are available. These cross a drainages at C 1 , C 2 and C 3 where drainage bed levels C 1 > C 2 > C 3 , you will provide at site C 3 |
| A. | an aqueduct |
| B. | a syphon aqueduct |
| C. | a super passage |
| D. | a syphon. |
| Answer» B. a syphon aqueduct | |
| 132. |
Disposal of extra excavated earth of canals, is utilised to provide a spoil bank on |
| A. | left side |
| B. | right side |
| C. | both sides |
| D. | all the above. |
| Answer» E. | |
| 133. |
Lane's weighted creep theory assumes |
| A. | equal weightage to horizontal and vertical creeps |
| B. | double weightage to horizontal creep and one weightage to vertical creep |
| C. | triple weightage to horizontal creep and one weightage to vertical creep |
| D. | triple weightage to vertical creep and one weightage to horizontal creep |
| Answer» E. | |
| 134. |
If average particle size of the silt in millimetres is m, the Lacey's silt factor f is proportional to |
| A. | m |
| B. | m 3 |
| C. | m 1/2 |
| D. | m 1/3 |
| Answer» D. m 1/3 | |
| 135. |
If the straight sides of a triangular section of a lined canal with circular bottom of radius D , make an angle ? with horizontal, the hydraulic mean depth is |
| A. | D |
| B. | D /2 |
| C. | D /3 |
| D. | D /4 |
| Answer» C. D /3 | |
| 136. |
If straight sides of a triangular section of a lined canal with circular bottom of radius R , make an angle ? with horizontal, the area of its cross-section, is |
| A. | R(? + tan ?) |
| B. | R(? + cot ?) |
| C. | R 2 (? + tan ?) |
| D. | R 2 (? + cot ?) |
| Answer» E. | |
| 137. |
If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q , is |
| A. | Q = 1.71 BD 1/2 |
| B. | Q = 1.71 BD |
| C. | Q = 1.71 BD 3/2 |
| D. | Q = 1/71 BD 2/3 |
| Answer» D. Q = 1/71 BD 2/3 | |
| 138. |
According to Bligh's creep theory, percolating water flows along |
| A. | straight path under the foundation of the dam |
| B. | circular path under the foundation of the dam |
| C. | the outline of the base of the foundation of the dam |
| D. | none of these. |
| Answer» D. none of these. | |
| 139. |
If the optimum depth of kor watering for a crop is 15.12 cm, the outlet factor for the crop for four week period in hectares per cumec, is |
| A. | 1000 |
| B. | 1200 |
| C. | 1400 |
| D. | 1600 |
| Answer» E. | |
| 140. |
The length and width of a meander and also the width of the river, vary roughly as |
| A. | square root of the discharge |
| B. | discharge |
| C. | square of the discharge |
| D. | cube of the discharge. |
| Answer» B. discharge | |
| 141. |
Solution of Laplacian equation in three dimensions of water in a syphon, is done by |
| A. | analytical method |
| B. | Khosla's method |
| C. | method of relaxation |
| D. | Unwin's method. |
| Answer» D. Unwin's method. | |
| 142. |
If d 1 is the depth of cutting, d 2 is the height of the bank from bed level r 2 : 1 and r 1 : 1 are the slopes in filling and cutting respectively, the horizontal distance n between the bed and bank, is |
| A. | x = r 1 d 1 |
| B. | x = r 2 d 2 |
| C. | x = d 1 / r 1 |
| D. | x = d 2 / r 2 |
| Answer» C. x = d 1 / r 1 | |
| 143. |
For a given discharge in a channel, Blench curves give the relationship between the loss of head ( H L ) and |
| A. | specific energy up-stream |
| B. | specific energy down-stream |
| C. | critical depth of water down-stream |
| D. | depth of water down-stream |
| Answer» C. critical depth of water down-stream | |
| 144. |
For loss of head in a canal inverted syphon barrel, the factor in the Unwin formula is a coefficient for loss of head due to |
| A. | friction |
| B. | exit |
| C. | entry |
| D. | gradient |
| Answer» D. gradient | |
| 145. |
For the conditions enumerated to provide a crossing at C 1 You will probably provide |
| A. | an aqueduct |
| B. | a super-passage |
| C. | a syphon aqueduct |
| D. | none of these. |
| Answer» C. a syphon aqueduct | |
| 146. |
If the straight sides of a triangular section of a lined canal with circular bottom of radius R , make an angle ? with horizontal, the perimeter of the canal is |
| A. | R(? + tan ?) |
| B. | 2R(? + tan ?) |
| C. | R(? + cos ?) |
| D. | 2R(? + cos ?) |
| Answer» E. | |