MCQOPTIONS
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MCQOPTIONS
This section includes 412 Mcqs, each offering curated multiple-choice questions to sharpen your Surveying knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Which of the following is not true about lead pipes? |
| A. | lead pipes are highly resistant to corrosion |
| B. | they have a low hydraulic coefficient of flow |
| C. | lead pipes are highly flexible |
| D. | when lead goes into solution, it has a cumulative poisoning effect |
| Answer» C. lead pipes are highly flexible | |
| 52. |
The Federal Water Pollution Control Act of 1948 became CWA. |
| A. | false |
| B. | true |
| Answer» C. | |
| 53. |
Which of the following is not a component of plumbing water supply system? |
| A. | washbasin |
| B. | water supply and distribution pipes |
| C. | valves |
| D. | storage tanks |
| Answer» B. water supply and distribution pipes | |
| 54. |
causes hoop tension in pipe shell. |
| A. | internal water pressure |
| B. | external water pressure |
| C. | water hammer |
| D. | longitudinal stress |
| Answer» B. external water pressure | |
| 55. |
The design value of the velocity of flow in a flocculator is |
| A. | 0.2-0.8m/s |
| B. | 0.3-0.5m/s |
| C. | 0.6-0.8m/s |
| D. | 0.1-0.5m/s |
| Answer» B. 0.3-0.5m/s | |
| 56. |
Which of the following is not true about plastic pipes? |
| A. | plastic pipes are cheaper than the metal pipes |
| B. | plastic pipes are light in weight |
| C. | plastic pipes can be installed with ordinary tools |
| D. | plastic pipes are corrosive |
| Answer» E. | |
| 57. |
Which of the following can be identified as the objective of water supply scheme? |
| A. | chlorination of water |
| B. | treat water |
| C. | safe water supply |
| D. | ionization of water |
| Answer» D. ionization of water | |
| 58. |
A reservoir having gates and valves installation at its spillway and at its sluice outlets |
| A. | storage reservoir |
| B. | retarding basin |
| C. | both storage and retarding reservoir |
| D. | distribution reservoir |
| Answer» B. retarding basin | |
| 59. |
Surface water can act as a source of water in water supply scheme. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 60. |
A hydel power project has been envisaged to serve the water supply and irrigation needs of the area at its inception stage. The dam reservoir so constructed is known as |
| A. | multipurpose reservoir |
| B. | single-purpose reservoir |
| C. | distribution reservoir |
| D. | retarding reservoir |
| Answer» B. single-purpose reservoir | |
| 61. |
What is the aim of pipes system in the dairy industry? |
| A. | facilitate product flow |
| B. | pasteurization |
| C. | fouling |
| D. | storage |
| Answer» B. pasteurization | |
| 62. |
Dealkalization results in removal of all the ions from the water. |
| A. | true |
| B. | false |
| Answer» C. | |
| 63. |
Which of the following can be designated as an intake structure? |
| A. | culvert |
| B. | river |
| C. | dam |
| D. | reservoir |
| Answer» E. | |
| 64. |
What are the types of flood control reservoirs? |
| A. | multipurpose reservoir and single purpose reservoir |
| B. | storage reservoir and retarding reservoirs |
| C. | distribution reservoir and storage reservoir |
| D. | distribution reservoir and multipurpose reservoir |
| Answer» C. distribution reservoir and storage reservoir | |
| 65. |
Which reservoir is also known as Mitigation reservoir? |
| A. | conservation reservoir |
| B. | flood control reservoir |
| C. | multipurpose dam |
| D. | storage reservoir |
| Answer» C. multipurpose dam | |
| 66. |
The average quantity of water (in lpcd) required for domestic purposes according to IS code is |
| A. | 100 |
| Answer» E. | |
| 67. |
Which pump among the ones mentioned below can be located above the suction reservoir without an external priming system? |
| A. | slurry pumps |
| B. | self-priming pumps |
| C. | submersible pumps |
| D. | trash pumps |
| Answer» C. submersible pumps | |
| 68. |
Which of the following does not act as a major factor that effects per capita demand? |
| A. | human activity |
| B. | industrial activities |
| C. | usage of water |
| D. | placement of pipe |
| Answer» C. usage of water | |
| 69. |
is used to measure the flow velocity across a cross-section with a known area. |
| A. | inferential meter |
| B. | anemometer |
| C. | speedometer |
| D. | barometer |
| Answer» B. anemometer | |
| 70. |
What is the percentage of purification of septic tank effluent? |
| A. | 30% |
| B. | 50% |
| C. | 70% |
| D. | 90% |
| Answer» D. 90% | |
| 71. |
The pipes will expand considerably when the product temperatures are high and during cleaning. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 72. |
When depth of insertion of turbidity rod increases, the reading in the turbidity rod |
| A. | decreases |
| B. | increases |
| C. | first decrease, then increase |
| D. | remains constant |
| Answer» B. increases | |
| 73. |
Fluorides in solution form are preferred over powdered form for fluoridation. |
| A. | true |
| B. | false |
| Answer» C. | |
| 74. |
The permissible limit of turbidity of domestic water is ppm. |
| A. | 5-10 |
| B. | 1-5 |
| C. | 10-50 |
| D. | 10-30 |
| Answer» B. 1-5 | |
| 75. |
The amount of water required for 1 percent per day is determined as |
| A. | daily demand |
| B. | monthly demand |
| C. | annual demand |
| D. | per capita demand |
| Answer» E. | |
| 76. |
1 TCU (True Color Unit) is equivalent to |
| A. | the color produced by 1 g of platinum cobalt |
| B. | the color produced by 1 mg of platinum cobalt |
| C. | the color produced by 1 mg of platinum cobalt in 1l of distilled water |
| D. | the color produced by 1 mg of platinum cobalt in 1ml of distilled water |
| Answer» D. the color produced by 1 mg of platinum cobalt in 1ml of distilled water | |
| 77. |
Inferential meters can be used for both low and high flows. |
| A. | true |
| B. | false |
| Answer» C. | |
| 78. |
is an operation designed to force agitation in the fluid and induce coagulation. |
| A. | sedimentation |
| B. | flocculation |
| C. | disinfection |
| D. | aeration |
| Answer» C. disinfection | |
| 79. |
What is the preferred regenerant in case of cation exchanger? |
| A. | hcl |
| B. | h2so4 |
| C. | h2co3 |
| D. | hf |
| Answer» B. h2so4 | |
| 80. |
requires EPA to establish regulations to protect human health from contaminants present in drinking water. |
| A. | sawd |
| B. | sdwa |
| C. | asaw |
| D. | swsa |
| Answer» C. asaw | |
| 81. |
4 LAYING, JOINTING AND TESTING OF PIPES - APPURTENANCES |
| A. | stainless steel |
| B. | copper |
| C. | ceramic |
| D. | plastic |
| Answer» D. plastic | |
| 82. |
is used to measure flows to domestic buildings. |
| A. | rain gauge |
| B. | water tank |
| C. | drainpipe |
| D. | water meter |
| Answer» E. | |
| 83. |
As the reservoir elevation increases, the outflow discharge increases. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 84. |
Manganese oxidation requires a high oxidation potential. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 85. |
A pressure conduit carrying water beneath a stream or a canal, is known as |
| A. | sag |
| B. | depressed pipe |
| C. | inverted syphon |
| D. | all the above. |
| Answer» E. | |
| 86. |
Low turbidity of water is detected by |
| A. | Turbidity tube |
| B. | Jackson turbidity meter |
| C. | Baylis turbidimeter |
| D. | Hellipe turbidimeter |
| Answer» D. Hellipe turbidimeter | |
| 87. |
If discharge of a pump is 0.16 cumecs, the economic diameter of pipe, is |
| A. | 0.488 m |
| B. | 4.88 cm |
| C. | 0.488 cm |
| D. | 4.88 m |
| Answer» B. 4.88 cm | |
| 88. |
To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36, 00, 000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2 √Q, the water horse power of the pump is |
| A. | 400 |
| B. | 450 |
| C. | 500 |
| D. | 600 |
| Answer» E. | |
| 89. |
In plain sedimentation tanks under normal conditions, impurities are removed upto |
| A. | 60% |
| B. | 70% |
| C. | 80% |
| D. | 90%. |
| Answer» C. 80% | |
| 90. |
For controlling algae, the most commonly used chemical, is |
| A. | copper sulphate |
| B. | alum |
| C. | lime |
| D. | bleaching powder. |
| Answer» B. alum | |
| 91. |
Well treated water is generally supplied for |
| A. | domestic use |
| B. | commercial use |
| C. | public use |
| D. | all the above. |
| Answer» E. | |
| 92. |
Water gets evaporated from water surfaces and land surfaces, get converted into water drops at lower temperatures, flows over ground surface and finally meets its source, i.e. lake, sea, etc. This entire process is generally known as |
| A. | hydrological cycle |
| B. | water cycle |
| C. | evaporation and precipitation cycle |
| D. | all the above. |
| Answer» E. | |
| 93. |
Pick up the wrong nominal internal diameter of cast iron (spun) pipes in mm from the following : |
| A. | 300 |
| B. | 400 |
| C. | 500 |
| D. | 550 |
| Answer» E. | |
| 94. |
E. Coli bacterias die in water having pH greater than |
| A. | 5.5 |
| B. | 6.5 |
| C. | 7.5 |
| D. | 9.5 |
| Answer» E. | |
| 95. |
An area is declared drought affected if its mean rainfall is less than |
| A. | 50% |
| B. | 60% |
| C. | 75% |
| D. | 85%. |
| Answer» E. | |
| 96. |
Mud balls may be removed by |
| A. | breaking and washing |
| B. | washing the filter with a solution of caustic soda |
| C. | removing, cleaning and replacing the damaged sand |
| D. | all the above. |
| Answer» E. | |
| 97. |
Asbestos pipes are joined by means of |
| A. | flanged joint |
| B. | flexible joint |
| C. | dresser coupling joint |
| D. | simplex joint |
| Answer» E. | |
| 98. |
Most important source of water for public water supply, is from |
| A. | lakes |
| B. | ponds |
| C. | streams |
| D. | rivers |
| Answer» E. | |
| 99. |
After cleaning a slow sand filter, the filtered water is not used for |
| A. | 6 hours to 12 hours |
| B. | 12 hours to 18 hours |
| C. | 18 hours to 24 hours |
| D. | 24 hours to 36 hours |
| Answer» E. | |
| 100. |
Normal values of overflow rate for plain sedimentation tanks in litres/hr/m², generally range between |
| A. | 100 to 250 |
| B. | 250 to 500 |
| C. | 500 to 750 |
| D. | 750 to 1000 |
| Answer» D. 750 to 1000 | |