MCQOPTIONS
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MCQOPTIONS
This section includes 188 Mcqs, each offering curated multiple-choice questions to sharpen your Irrigation Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
The most adopted earthen section for tank bunds is of the type ___________________ |
| A. | homogeneous embankment type |
| B. | zoned embankment type |
| C. | diaphragm type |
| D. | both diaphragm and zoned type embankment |
| Answer» B. zoned embankment type | |
| 52. |
__________________ joint is often used for connecting cast iron pipes. |
| A. | Flexible joint |
| B. | Expansion joint |
| C. | Collar joints |
| D. | Bell and spigot joint |
| Answer» E. | |
| 53. |
The alignment of the waterway should be________________ |
| A. | straight |
| B. | circular |
| C. | parabola |
| D. | irregular alignment |
| Answer» B. circular | |
| 54. |
The flow through the penstocks and pressure conduits is generally ____________________ |
| A. | laminar |
| B. | turbulent |
| C. | both laminar and turbulent |
| D. | unpredictable |
| Answer» C. both laminar and turbulent | |
| 55. |
The head loss in the flow of water through a penstock pipe of given length ____________ |
| A. | increases with the increase in flow velocity |
| B. | decreases with the increase in flow velocity |
| C. | decreases with the increase in the roughness of the pipe surface |
| D. | decreases with time |
| Answer» B. decreases with the increase in flow velocity | |
| 56. |
When sand and gravel foundation strata are available at a proposed dam site of moderate height, the dam may be of the type ________________ |
| A. | earthen or rockfill dam |
| B. | masonry gravity dam |
| C. | concrete gravity dam |
| D. | double arch dam |
| Answer» B. masonry gravity dam | |
| 57. |
In which of the following dam the weight of water is carried by a deck of RCC or by arches that share the weight burden? |
| A. | Earth dams |
| B. | Rockfill dams |
| C. | A hollow masonry gravity dam |
| D. | Timber dam |
| Answer» D. Timber dam | |
| 58. |
The capacity of an irrigation tank is sometimes increased by installing a temporary stone wall over the top of the tank weir. This fixture is known as____________________ |
| A. | saddle |
| B. | dam stone |
| C. | breast wall |
| D. | divide wall |
| Answer» C. breast wall | |
| 59. |
As the reservoir elevation increases, the outflow discharge increases. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 60. |
Yield of a reservoir represents ___________________ |
| A. | the inflow into the reservoir |
| B. | the capacity of the reservoir |
| C. | the outflow demand on the reservoir |
| D. | the optimum value of catchment yield |
| Answer» D. the optimum value of catchment yield | |
| 61. |
The width of the horizontal floors of type A and D weirs from the foot of the drop wall to the d/s edge of the floor should never be less than ________________ |
| A. | 5 (D + H) |
| B. | 3 (D + H) |
| C. | 2.5 (D + H) |
| D. | 2 (D + H) |
| Answer» E. | |
| 62. |
Which of the following is a stone masonry dam? |
| A. | Bhakra dam |
| B. | Nagarjuna Sagar Dam |
| C. | Hirakud dam |
| D. | Tehri dam |
| Answer» C. Hirakud dam | |
| 63. |
Which of the following formula can be used to determine the storage when three consecutive sections at equal height are taken? |
| A. | Prismoidal formula |
| B. | Trapezoidal method |
| C. | Average formula |
| D. | Integration method |
| Answer» B. Trapezoidal method | |
| 64. |
The usual arrangement made in a tank-bund scheme to spill the surplus excess water is known as ________________________ |
| A. | tank spillway |
| B. | tank sluice |
| C. | tank weir |
| D. | tank bunds |
| Answer» D. tank bunds | |
| 65. |
Bhakra dam of India is located in the state of ________________ |
| A. | Punjab |
| B. | Himachal Pradesh |
| C. | Uttar Pradesh |
| D. | Madhya Pradesh |
| Answer» C. Uttar Pradesh | |
| 66. |
A dam reservoir catering to flood control, irrigation, and water supply basically designed for irrigation alone is a _______________- |
| A. | multipurpose reservoir |
| B. | single-purpose reservoir |
| C. | distribution reservoir |
| D. | retarding basins |
| Answer» C. distribution reservoir | |
| 67. |
What is the correct Douma’s equation for rectangular tunnels or conduits? |
| A. | X² + 10.4 Y² = d² |
| B. | 4X² + 10.4 Y² = d² |
| C. | 4X² + 44.4 Y² = d² |
| D. | X² – 10.4 Y² = d² |
| Answer» B. 4X² + 10.4 Y² = d² | |
| 68. |
Capacity inflow ratio for a storage reservoir is defined as the ratio of _______________________ |
| A. | reservoir capacity to the average annual flood inflow |
| B. | reservoir capacity to the average annual sediment inflow |
| C. | the dead storage capacity of the reservoir to the average annual sediment deposited |
| D. | total annual sediment inflow to the reservoir capacity |
| Answer» B. reservoir capacity to the average annual sediment inflow | |
| 69. |
Which of the following yield formula is used for the catchments of West Maharashtra state of India? |
| A. | Inglis formula |
| B. | Khosla’s formula |
| C. | Lacey’s formula |
| D. | Barlow’s table |
| Answer» B. Khosla’s formula | |
| 70. |
The provision of suitable breaching sections becomes more important in irrigation tanks which are isolated. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 71. |
Nangal Dam is an example of ___________ |
| A. | diversion dam |
| B. | storage dam |
| C. | detention dam |
| D. | arch dam |
| Answer» B. storage dam | |
| 72. |
Which of the following type of dam is built in areas where the foundation is not strong enough to bear the weight of concrete? |
| A. | Rock-fill dam |
| B. | Earth dam |
| C. | Gravity dam |
| D. | Arch dam |
| Answer» C. Gravity dam | |
| 73. |
The depth of water stored in an irrigation tank rarely exceeds ______________ |
| A. | 4 m |
| B. | 8 m |
| C. | 12 m |
| D. | 16 m |
| Answer» D. 16 m | |
| 74. |
Timber is generally transported in our country through ________________ |
| A. | rail routes |
| B. | road routes |
| C. | air routes |
| D. | water routes |
| Answer» E. | |
| 75. |
The highest concrete gravity dam of the world is the Grand Dixene dam in Switzerland whose height is ____________ |
| A. | 325 m |
| B. | 317 m |
| C. | 285 m |
| D. | 272 m |
| Answer» D. 272 m | |
| 76. |
Which of the following guideline is incorrect for the selection of a suitable site for a reservoir? |
| A. | The geological formation should be such that it entails minimum leakage |
| B. | The cost of the dam is a controlling factor |
| C. | Too much silt-laden tributaries should be avoided as far as possible |
| D. | The reservoir basin should have a shallow wide opening in the valley |
| Answer» E. | |
| 77. |
Bank storage in a dam reservoir _________________ |
| A. | increases the compound reservoir capacity |
| B. | decreases the computed reservoir capacity |
| C. | sometimes increases and sometimes decreases the computed reservoir capacity |
| D. | has no effect on computed reservoir capacity |
| Answer» B. decreases the computed reservoir capacity | |
| 78. |
Which of the following dam is situated in the seismologically inactive zone in Peninsular India? |
| A. | Koyna dam |
| B. | Hirakud dam |
| C. | Tehri dam |
| D. | Idukki dam |
| Answer» B. Hirakud dam | |
| 79. |
A narrow V-shaped valley indicates the choice of _________________ |
| A. | concrete overflow dam |
| B. | spillway |
| C. | arch dam |
| D. | earth dam |
| Answer» D. earth dam | |
| 80. |
Himalayan rivers carry huge amounts of sediment. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 81. |
Which type of rivers can derive water from all seasons? |
| A. | Tidal Rivers |
| B. | Non-Himalayan Rivers |
| C. | Himalayan Rivers |
| D. | Deltaic Rivers |
| Answer» D. Deltaic Rivers | |
| 82. |
The flood discharge in Himalayan Rivers can be great as how times the normal winter flow? |
| A. | 25 to 75 |
| B. | 25 to 50 |
| C. | 75 to 100 |
| D. | 50 to 100 |
| Answer» E. | |
| 83. |
According to what variations the Himalayan Rivers are very complex? |
| A. | Velocity |
| B. | Discharge and Sediment Load |
| C. | Type of Bed Soil |
| D. | Terrain of the River Basin |
| Answer» C. Type of Bed Soil | |
| 84. |
In which parts of India do non perennial rivers flow? |
| A. | North India |
| B. | Central and South India |
| C. | Eastern India |
| D. | West India |
| Answer» C. Eastern India | |
| 85. |
Which type of rivers is more stable? |
| A. | Himalayan Rivers |
| B. | Non-Himalayan Rivers |
| C. | Virgin Rivers |
| D. | Flashy Rivers |
| Answer» C. Virgin Rivers | |
| 86. |
Which river is the example of Non-Himalayan Rivers? |
| A. | Chenab |
| B. | Beas |
| C. | Godavari |
| D. | Jhelum |
| Answer» D. Jhelum | |
| 87. |
Which type of dam design gives a wider choice of materials including earth-fill and rock-fill dams? |
| A. | Non-overflow dams |
| B. | Overflow dams |
| C. | Rigid dams |
| D. | Non-rigid dams |
| Answer» B. Overflow dams | |
| 88. |
A dam reservoir which is not provided with gate controls on its spillway and other sluices is called ________________ |
| A. | detention dam |
| B. | storage reservoir |
| C. | retarding basin |
| D. | flood control reservoir |
| Answer» D. flood control reservoir | |
| 89. |
The reservoir capacity cannot exceed the catchment yield. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 90. |
Design yield of a storage reservoir is kept _______________ |
| A. | higher than its firm or safe yield |
| B. | lower than its firm or safe yield |
| C. | equal to its firm or safe yield |
| D. | higher or lower than the firm yield depending upon the designer’s intuition |
| Answer» C. equal to its firm or safe yield | |
| 91. |
Which dam is a better choice when the raw materials are not available and have to be transported from far off distances? |
| A. | Earthen dam |
| B. | Rock-fill dam |
| C. | Concrete gravity dam |
| D. | Hollow concrete dam |
| Answer» E. | |
| 92. |
If A₁ and A₂ represent the areas enclosed between two successive contours, then the cubic content between these contours is roughly taken as _________________ |
| A. | (A₁ + A₂) x h/2 |
| B. | A₁.A₂ x h/2 |
| C. | A₁ x h/2 |
| D. | A₂ x h/2 |
| Answer» B. A₁.A₂ x h/2 | |
| 93. |
Idukki dam is a type of ________________ |
| A. | rockfill dam |
| B. | a hollow masonry gravity dam |
| C. | arch dam |
| D. | steel dam |
| Answer» D. steel dam | |
| 94. |
What is the oldest and cheapest mode of transporting cargo? |
| A. | Rail routes |
| B. | Road routes |
| C. | Air routes |
| D. | Water routes |
| Answer» E. | |
| 95. |
Which reservoir is helpful in permitting the pumps or the water treatment plants to work at a uniform rate? |
| A. | Storage reservoir |
| B. | Detention reservoir |
| C. | Multipurpose reservoir |
| D. | Distribution reservoir |
| Answer» E. | |
| 96. |
Bar screens used to cover dam outlets to prevent entry of debris or ice into the sluiceway conduits are called ______________ |
| A. | gate controlled ports |
| B. | projecting collars |
| C. | trash racks |
| D. | outlets |
| Answer» D. outlets | |
| 97. |
The North Indian rivers rise in high floods. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 98. |
Which of the following entrance of the sluiceway is most superior? |
| A. | A square-edged entrance |
| B. | A Bell-mouthed entrance |
| C. | A rectangular entrance |
| D. | A circular entrance |
| Answer» C. A rectangular entrance | |
| 99. |
The more rapid the closure of the valve, greater is the water hammer pressure developed. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 100. |
Who did the first effort to give empirical relations for converting the yearly rainfall value into the yearly runoff for the given catchment? |
| A. | Mr. W L Strange |
| B. | Alexander Binnie |
| C. | Mr. T.G Barlow |
| D. | Sir Inglis |
| Answer» C. Mr. T.G Barlow | |