McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
| 151. |
A baffle wall is a sort of low weir constructed at the end of the cistern to |
| A. | head up water to its upstream to such a height that hydraulic jump is formed |
| B. | withstand the actual impact of the high velocity jet to dissipate the energy |
| C. | both (a) and (b) |
| D. | none of the above |
| Answer» C. both (a) and (b) | |
| 152. |
The function of a barrage is different to that a weir. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 153. |
The irrigation engineering may be defined as |
| A. | the process of artificially supplying water to soil for raising crops |
| B. | a science of planning and designing an efficient and economic irrigation system |
| C. | the engineering of controlling and harnessing the various natural sources of water, by the construction of dams, canals and finally distributing the water to the agricultural fields |
| D. | all of the above |
| Answer» D. all of the above | |
| 154. |
Liquid precipitation consists of |
| A. | snow |
| B. | hail |
| C. | sleet |
| D. | rainfall |
| Answer» D. rainfall | |
| 155. |
The main cause of silting in channel is |
| A. | non-regime section |
| B. | inadequate slope |
| C. | defective head regulator |
| D. | all of these |
| Answer» D. all of these | |
| 156. |
Lacey's theory as applied to channel design, involves trial and error procedure. |
| A. | Agree |
| B. | Disagree |
| Answer» B. Disagree | |
| 157. |
The ratio between the area of a crop irrigated and the quantity of water required during its entire period of the growth, is known as |
| A. | delta |
| B. | duty |
| C. | base period |
| D. | crop period |
| Answer» B. duty | |
| 158. |
The loss of head per unit length of creep is called |
| A. | coefficient of creep |
| B. | percolation coefficient |
| C. | Lane's coefficient |
| D. | none of these |
| Answer» B. percolation coefficient | |
| 159. |
The basic factor which controls the process of meandering is |
| A. | discharge |
| B. | valley slope |
| C. | bed and side resistance |
| D. | all of these |
| Answer» D. all of these | |
| 160. |
In a flexible outlet, the discharge depends upon the |
| A. | water level in distributary |
| B. | water level in water course |
| C. | difference of water levels between distributary and water course |
| D. | none of the above |
| Answer» A. water level in distributary | |
| 161. |
A river meandering through an alluvial plain has a series of consecutive curves of reversed order connected with short straight sketches, is called |
| A. | crossing |
| B. | meandering belt |
| C. | meandering length |
| D. | none of these |
| Answer» A. crossing | |
| 162. |
The water shed canal is also called |
| A. | side slope canal |
| B. | contour canal |
| C. | ridge canal |
| D. | all of these |
| Answer» C. ridge canal | |
| 163. |
In an Inglis type fall, the baffle holds the jump stable on a horizontal platform. |
| A. | Agree |
| B. | Disagree |
| Answer» A. Agree | |
| 164. |
The borrow pits should, preferably, be taken from |
| A. | the field on the right side of canal |
| B. | the field on the left side of the canal |
| C. | the central half width of the section of the canal |
| D. | any one of the above |
| Answer» C. the central half width of the section of the canal | |
| 165. |
Rivers on alluvial plains may be |
| A. | meandering type |
| B. | aggrading type |
| C. | degrading type |
| D. | all of these |
| Answer» D. all of these | |
| 166. |
A canal sligned nearly parallel to the contours of a country, is known as |
| A. | side slope canal |
| B. | contour canal |
| C. | water shed canal |
| D. | ridge canal |
| Answer» B. contour canal | |
| 167. |
The duty at outlet is called capacity factor. |
| A. | Correct |
| B. | Incorrect |
| Answer» B. Incorrect | |
| 168. |
The duty is largest |
| A. | at the head of the main canal |
| B. | at the head of the water course |
| C. | on the field |
| D. | at all place |
| Answer» C. on the field | |
| 169. |
The knowledge of hydrology is necessary in civil engineering for |
| A. | designing and construction of irrigation structures |
| B. | designing and construction of bridges and culverts |
| C. | flood control works |
| D. | all of these |
| Answer» D. all of these | |
| 170. |
Nawab Jang Bahadur formula is used to estimate the flood discharge of American catchments |
| A. | Right |
| B. | Wrong |
| Answer» B. Wrong | |
| 171. |
For closed growing crops (such as wheat), the method of irrigation used is |
| A. | free flooding |
| B. | border flooding |
| C. | check flooding |
| D. | basin flooding |
| Answer» B. border flooding | |
| 172. |
The crest of the under-sluices should be lower than the crest of the head regulator (if silt excluder is provided by at least |
| A. | 1 to 1.2 m |
| B. | 1.8 to 2 m |
| C. | 2 to 2.5 m |
| D. | 4 to 5 m |
| Answer» B. 1.8 to 2 m | |
| 173. |
In Bligh's creep theory, it is assumed that the percolation water creep |
| A. | along the contact of the base profile of the apron with the sub-soil |
| B. | in a straight path under the floor |
| C. | in a straight path under the foundation work |
| D. | none of the above |
| Answer» A. along the contact of the base profile of the apron with the sub-soil | |
| 174. |
When the irrigation canal and the drain are at the same level, then the cross drainage work is achieved by providing a |
| A. | aqueduct |
| B. | super-passage |
| C. | level crossing |
| D. | canal syphon |
| Answer» C. level crossing | |
| 175. |
The amount of precipitation is measured by |
| A. | rain gauge |
| B. | osmoscope |
| C. | turbidimeter |
| D. | all of these |
| Answer» A. rain gauge | |
| 176. |
Distributary head regulators are provided |
| A. | to control the supplies to the off-taking channel |
| B. | to control the silt entry in the off-taking canal |
| C. | to stop the supply, when not needed, in the off-taking canal |
| D. | all of the above |
| Answer» D. all of the above | |
| 177. |
Which of the following is a type of semi-module outlet? |
| A. | Submerged pipe outlet |
| B. | Open flume outlet |
| C. | Kennedy's gauge outlet |
| D. | all of these |
| Answer» C. Kennedy's gauge outlet | |
| 178. |
The opening in the weir wall with a crest at low level on the canal side is known as under sluice or scouring sluice. |
| A. | Correct |
| B. | Incorrect |
| Answer» A. Correct | |
| 179. |
The optimum depth of kor watering for wheat in the plains of north India is |
| A. | 13.5 cm |
| B. | 16.5 cm |
| C. | 19 cm |
| D. | 21 cm |
| Answer» A. 13.5 cm | |
| 180. |
The flexibility of a hyper-proportional outlet is |
| A. | greater than |
| B. | equal to |
| C. | less than |
| Answer» A. greater than | |
| 181. |
In a proportional outlet, the rate of change of its discharge is |
| A. | equal to |
| B. | more than |
| C. | less than |
| Answer» A. equal to | |
| 182. |
A weir fails due to |
| A. | rupture of floor due to uplift |
| B. | rupture of floor due to suction caused by standing wave |
| C. | scour on the upstream and downstream of the weir |
| D. | all of the above |
| Answer» D. all of the above | |
| 183. |
The average delta of rice crop is nearly |
| A. | 30 cm |
| B. | 60 cm |
| C. | 120 cm |
| D. | 150 cm |
| Answer» C. 120 cm | |
| 184. |
The science which deals with the physical features and conditions of water on the earth surface is called |
| A. | hydrometry |
| B. | hydrography |
| C. | hydrosphere |
| D. | hydraulics |
| Answer» B. hydrography | |
| 185. |
A groyne with a curved head is known as |
| A. | hockey groyne |
| B. | burma groyne |
| C. | denehy groyne |
| D. | none of these |
| Answer» A. hockey groyne | |
| 186. |
The slope of a canal, for a discharge of 300 cumecs, should be |
| A. | 1 in 4000 |
| B. | 1 in 6000 |
| C. | 1 in 8000 |
| D. | 1 in 10000 |
| Answer» C. 1 in 8000 | |
| 187. |
The precipitation caused by natural rising of warmer lighter air in colder and denser surroundings, is called |
| A. | convective precipitation |
| B. | orographic precipitation |
| C. | cyclonic precipitation |
| D. | none of these |
| Answer» A. convective precipitation | |
| 188. |
The sensitivity of a rigid module is |
| A. | equal to zero |
| B. | less than unity |
| C. | equal to unity |
| D. | more than unity |
| Answer» A. equal to zero | |
| 189. |
The Sarda canal has a |
| A. | glacis type fall |
| B. | vertical drop fall |
| C. | Ogee fall |
| D. | rapid fall |
| Answer» B. vertical drop fall | |
| 190. |
When discharge of an outlet is independent of the water levels in the water course and the distributary, the outlet is termed as a |
| A. | flexible outlet |
| B. | non-modular outlet |
| C. | semi-module outlet |
| D. | rigid module |
| Answer» D. rigid module | |
| 191. |
For low navigation dams, the type of gate used is |
| A. | rolling gate |
| B. | bear trap gate |
| C. | vertical lift gate |
| D. | drum gate |
| Answer» B. bear trap gate | |
| 192. |
The coefficient of creep is the reciprocal of percolation coefficient. |
| A. | Right |
| B. | Wrong |
| Answer» A. Right | |
| 193. |
Cross regulators are provided |
| A. | to raise the water level to its upstream during the periods of low discharges in the parent channel |
| B. | to help in closing the supply to down stream of the parent channel |
| C. | to absorb fluctuation in various sections of the canal system |
| D. | all of the above |
| Answer» D. all of the above | |
| 194. |
The commonly used rain gauge is |
| A. | weighing bucket type |
| B. | tipping bucket type |
| C. | float type |
| D. | none of these |
| Answer» C. float type | |
| 195. |
Which of the following statement is wrong? |
| A. | In Kennedy's wilt theory, no account was taken of silt concentration and bed load. |
| B. | Kennedy did not gave any slope equation. |
| C. | In Kennedy's theory, silt grade and silt charge were not defined. |
| D. | none of the above |
| Answer» D. none of the above | |
| 196. |
The sensitivity of an outlet is defined as the ratio of the |
| A. | rate of change of discharge of an outlet to the rate of change of discharge of the distributing channel |
| B. | rate of change of discharge of an outlet to the rate of change in level of the distributing surface, referred to normal depth of the channel |
| C. | depth of the sill or the crest level of the module below the full supply of the distributing channel to the full supply depth of the distributing channel |
| D. | head recovered to the head put in an outlet |
| Answer» B. rate of change of discharge of an outlet to the rate of change in level of the distributing surface, referred to normal depth of the channel | |
| 197. |
Crop ratio is the ratio of area irrigated |
| A. | in Rabi season to Kharif season |
| B. | in Kharif season to Rabi season |
| C. | under perennial crop to total crop |
| D. | under perennial crop to non-perennial crop |
| Answer» B. in Kharif season to Rabi season | |
| 198. |
The depth of root zone is 90 cm for |
| A. | wheat |
| B. | sugar cane |
| C. | rice |
| D. | cotton |
| Answer» C. rice | |
| 199. |
A parabolic glacis type fall is commonly known as |
| A. | Montague fall |
| B. | Inglis fall |
| C. | Sarda fall |
| D. | vertical type fall |
| Answer» A. Montague fall | |
| 200. |
For Madras catchments, the flood discharge is estimated from Q = CA2/3. This formula is known as |
| A. | Dicken's formula |
| B. | Ryve's formula |
| C. | Nawab Jang Bahadur formula |
| D. | Inglis formula |
| Answer» B. Ryve's formula | |
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