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.
| 101. |
Grade aqueducts are not allowed to run |
| A. | full |
| B. | 3/4th full |
| C. | 1/2full |
| D. | 1/4th full. |
| Answer» B. 3/4th full | |
| 102. |
P.V.C. pipes can withstand pressure bead of water upto |
| A. | 25 m |
| B. | 50 m |
| C. | 75 m |
| D. | 100 m |
| Answer» E. | |
| 103. |
Per capita demand of water is calculated in litres |
| A. | per person per day |
| B. | per person per month |
| C. | per person per year |
| D. | none of these. |
| Answer» B. per person per month | |
| 104. |
The percentage of chlorine in fresh bleaching powder is roughly |
| A. | 50 to 60 |
| B. | 30 to 35 |
| C. | 40 to 50 |
| D. | 20 to 25 |
| Answer» C. 40 to 50 | |
| 105. |
The maximum non-verticality of the bore of a well 200 m deep, may be permitted up to |
| A. | 25 cm |
| B. | 50 cm |
| C. | 75 cm |
| D. | 100 cm |
| Answer» E. | |
| 106. |
Air inlet valve in water mains, is generally provided at |
| A. | summit of the pipe |
| B. | upstream of sluice valve |
| C. | down stream of sluice valve |
| D. | both (a) and (c) of above. |
| Answer» E. | |
| 107. |
When gravity and pumping systems of water distribution are adopted, the type of distribution reservoir, is |
| A. | elevated tank |
| B. | ground source reservoir |
| C. | intz tank |
| D. | stand pipe. |
| Answer» B. ground source reservoir | |
| 108. |
The bed slope in slow sand filters, is generally kept |
| A. | 1 in 50 |
| B. | 1 in 75 |
| C. | 1 in 100 |
| D. | 1 : 200 |
| Answer» D. 1 : 200 | |
| 109. |
By adding 1 ml of orthotolidine solution to 100 ml chlorinated water taken after contact period, the residual chlorine makes the colour of solution |
| A. | yellowish |
| B. | greenish |
| C. | bluish |
| D. | reddish |
| Answer» B. greenish | |
| 110. |
The diameter of pipes in bath rooms and lavatories in domestic water supply, is |
| A. | 6 mm |
| B. | 12 mm |
| C. | 18 mm |
| D. | 24 mm. |
| Answer» C. 18 mm | |
| 111. |
One degree of hardness of water means a content of salts of |
| A. | 10.25 mg/litre |
| B. | 12.25 mg/litre |
| C. | 14.25 mg/litre |
| D. | 16.25 mg/litre. |
| Answer» D. 16.25 mg/litre. | |
| 112. |
The duration of contact of chlorine with water before it is served to the first consumer, should be at least |
| A. | 10 to 15 minutes |
| B. | 15 to 20 minutes |
| C. | 20 to 30 minutes |
| D. | 30 to 40 minutes |
| Answer» D. 30 to 40 minutes | |
| 113. |
Generally, first portion of a logistic curve for the population growth of a developing city, represents the growth of |
| A. | increasing |
| B. | decreasing |
| C. | constant |
| D. | all the above. |
| Answer» B. decreasing | |
| 114. |
The ratio of maximum hourly consumption and average hourly consumption of the maximum day, is |
| A. | 1.2 |
| B. | 1.5 |
| C. | 1.8 |
| D. | 2.7 |
| Answer» E. | |
| 115. |
The formula Q = P - K[1.8T + 32] in which Q is runoff, P is annual rain fall in cm, T is mean annual temperature in centigrades and K is a constant, is known |
| A. | Justin's formula |
| B. | Khosla's formula |
| C. | English formula |
| D. | Vermule's formula. |
| Answer» C. English formula | |
| 116. |
In a rapid sand filter, air binding is caused due to excessive |
| A. | negative pressure |
| B. | pressure |
| C. | turbidity |
| D. | water pressure |
| Answer» B. pressure | |
| 117. |
Maximum threshold number permitted for indicating the odour of public water supplies, is |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 118. |
Growth of population can be conveniently represented by |
| A. | an arithmetical curve |
| B. | a semi-logarithmic curve |
| C. | a logistic curve |
| D. | a straight line curve |
| Answer» D. a straight line curve | |
| 119. |
Run off is the quantity of water which flows |
| A. | in sewer pipes |
| B. | due to leakage in pipes |
| C. | in rivers |
| D. | none of these. |
| Answer» D. none of these. | |
| 120. |
B.O.D. of treated water should be |
| A. | 10 ppm |
| B. | 25 ppm |
| C. | 20 ppm |
| D. | Nil. |
| Answer» E. | |
| 121. |
Abyssinian tube well is a special type of |
| A. | slotted type wells |
| B. | cavity type wells |
| C. | strainer type well |
| D. | none of these. |
| Answer» D. none of these. | |
| 122. |
Yield of a drainage basin is : |
| A. | run off of the area expressed as instantaneous rate |
| B. | average run off over a short period |
| C. | total volume of water flowing annually |
| D. | all the above. |
| Answer» D. all the above. | |
| 123. |
Water having pH value as 6, is |
| A. | alkaline |
| B. | acidic |
| C. | neutral |
| D. | none of these. |
| Answer» C. neutral | |
| 124. |
Chemical coagulation of drinking water, is done |
| A. | to settle suspended materials |
| B. | to increase rate of settlement of suspended materials |
| C. | to remove the bacterias |
| D. | none of these. |
| Answer» C. to remove the bacterias | |
| 125. |
The gaseous form of chlorine gets converted into liquid form when subjected to a pressure of |
| A. | 5 kg/cm² |
| B. | 6 kg/cm² |
| C. | 7 kg/cm² |
| D. | 8 kg/cm² |
| Answer» D. 8 kg/cm² | |
| 126. |
Manholes along the mains from the source to a city are provided at 500 m intervals in |
| A. | steel pipes |
| B. | R.C.C. pipes |
| C. | hume steel pipes |
| D. | all the above. |
| Answer» E. | |
| 127. |
Recuperation test is carried out to determine |
| A. | turbidity of water |
| B. | pH value of water |
| C. | yield of well |
| D. | discharge from a well. |
| Answer» D. discharge from a well. | |
| 128. |
A slow sand filter is cleaned if its filter head is higher than |
| A. | 10 cm to 20 cm |
| B. | 20 cm to 40 cm |
| C. | 40 cm to 70 cm |
| D. | 70 cm to 120 cm |
| Answer» E. | |
| 129. |
In distribution pipes, air valves are provided at |
| A. | lower points |
| B. | junction points |
| C. | higher points |
| D. | any where. |
| Answer» D. any where. | |
| 130. |
In slow sland filters, the turbidity of raw water can be removed only up to |
| A. | 60 mg/litre |
| B. | 75 mg/litre |
| C. | 100 gm/litre |
| D. | 150 mg/litre. |
| Answer» B. 75 mg/litre | |
| 131. |
Continuous flow of water can be expected from |
| A. | gravity springs |
| B. | surface springs |
| C. | artesian springs |
| D. | none of these. |
| Answer» D. none of these. | |
| 132. |
The bacterias which require free oxygen for their survival, are called |
| A. | Aerobic bacterias |
| B. | Anaerobic bacterias |
| C. | Faculative bacteria |
| D. | None of these. |
| Answer» B. Anaerobic bacterias | |
| 133. |
If V is total consumption of water in litres for a population of N individuals, per capita consumption or water allowance for the water supply Q, is given by |
| A. | Q = V/12N |
| B. | Q = V/24N |
| C. | Q = V/365N |
| D. | none of these. |
| Answer» D. none of these. | |
| 134. |
The permissible pH value for public water supplies may range between |
| A. | 4.5 to 5.5 |
| B. | 5.5 to 6.5 |
| C. | 6.5 to 8.5 |
| D. | 8.5 to 10.5 |
| Answer» D. 8.5 to 10.5 | |
| 135. |
For plain chlorination of water, the quantity of chlorine used, is |
| A. | 0.1 mg/litre |
| B. | 0.2 mg/litre |
| C. | 0.3 mg/litre |
| D. | 0.5 mg/litre. |
| Answer» E. | |
| 136. |
The temporary hardness of water can be removed by |
| A. | boiling |
| B. | adding lime |
| C. | adding alum |
| D. | filtration |
| Answer» B. adding lime | |
| 137. |
The efficiency of sedimentation tank does not depend upon |
| A. | depth of tank |
| B. | length of tank |
| C. | detention period |
| D. | velocity of water. |
| Answer» B. length of tank | |
| 138. |
The flow of water gets retarded, in |
| A. | settling tank |
| B. | sedimentation tank |
| C. | clarifer |
| D. | all the above. |
| Answer» E. | |
| 139. |
Air valves are generally provided in pressure pipes of water supply |
| A. | at pipe junctions |
| B. | at summits |
| C. | at low points |
| D. | near service pipes. |
| Answer» C. at low points | |
| 140. |
Most important method for calculating discharge for planning a water supply project, is |
| A. | velocity area method |
| B. | weir or spillway method |
| C. | use of venturi-meter |
| D. | using power plant consumption |
| Answer» B. weir or spillway method | |
| 141. |
The maximum pressure to which a pipe is subjected to during its operation, is known |
| A. | working pressure |
| B. | design pressure |
| C. | test pressure |
| D. | pipe pressure |
| Answer» B. design pressure | |
| 142. |
Rapid sand filter |
| A. | should be preceeded by coagulation and sedimentation |
| B. | uses rapid sand as filter media |
| C. | is used after slow sand filtering has been done |
| D. | can combine disinfection also. |
| Answer» B. uses rapid sand as filter media | |
| 143. |
Water is supplied from the source to the treatment plant under gravity in |
| A. | Calcutta |
| B. | Delhi |
| C. | Madras |
| D. | Bombay. |
| Answer» E. | |
| 144. |
Pick up the correct statement from the following regarding radial flow centrifugal pumps : |
| A. | These are provided with volute type or turbine type casings |
| B. | In involute type of radial flow centrifugal pump, the impeller discharges into a gradually expanding spiral casing |
| C. | In turbine type of radial flow centrifugal pumps, the impeller is surrounded by stationary guide vanes to reduce the velocity of water |
| D. | All the above. |
| Answer» E. | |
| 145. |
The prescribed hardness limit of potable water ranges between |
| A. | 50 to 75 P.P.M. |
| B. | 75 to 115 P.P.M. |
| C. | 100 to 150 P.P.M. |
| D. | 150 to 200 P.P.M. |
| Answer» C. 100 to 150 P.P.M. | |
| 146. |
Maximum permissible colour for domestic water supplies, based on Cobalt scale, is |
| A. | 5 P.P.M. |
| B. | 10 P.P.M. |
| C. | 15 P.P.M. |
| D. | 20 P.P.M. |
| Answer» E. | |
| 147. |
The population of a city in 2000 is 50, 000. The average per decade of the previous records of population is 5000 and average percentage per decade is 20%. The population of the city based on geometrical increase method, in the year 2020 will be |
| A. | 56, 000 |
| B. | 60, 000 |
| C. | 64, 000 |
| D. | 72, 000 |
| Answer» E. | |
| 148. |
The ratio of the maximum daily consumption to the average daily demand, is |
| A. | 1.0 |
| B. | 1.2 |
| C. | 1.4 |
| D. | 1.8 |
| Answer» E. | |
| 149. |
The factor to be considered for the source of city water supply, is |
| A. | quantity and quality of the available water |
| B. | elevation of the source of water |
| C. | general terrain intervening the area |
| D. | all the above. |
| Answer» E. | |
| 150. |
Pick up the incorrect statement from the following. In take of water supply should |
| A. | be nearer to the treatment plant |
| B. | receive water from purer zone of the source |
| C. | be located downstream of waste water disposal point |
| D. | remain easily accessible during floods. |
| Answer» D. remain easily accessible during floods. | |