MCQOPTIONS
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MCQOPTIONS
This section includes 157 Mcqs, each offering curated multiple-choice questions to sharpen your Concrete Technology knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
Which of the following statement is correct? |
| A. | Rich class consumes less water |
| B. | Intermittent water supplies leads to less water consumption |
| C. | Loss of water is more if the pressure in the distribution system is less |
| D. | Water consumption is less in flush system |
| Answer» C. Loss of water is more if the pressure in the distribution system is less | |
| 102. |
What are the factors affecting per capita demand? |
| A. | Size of city |
| B. | Size of city, habit of people |
| C. | Cost of water, quality of water, size of city |
| D. | Cost of water, quality of water, size of city, habit of people |
| Answer» E. | |
| 103. |
If in a city, the maximum daily draft is 25MLD, fire draft is 35MLD and maximum hourly draft is 40MLD, what is the coincident draft? |
| A. | 60MLD |
| B. | 40MLD |
| C. | 25MLD |
| D. | 35MLD |
| Answer» B. 40MLD | |
| 104. |
What is the design period for the water treatment unit? |
| A. | 10 years |
| B. | 15 years |
| C. | 20 years |
| D. | 30 years |
| Answer» C. 20 years | |
| 105. |
If the annual average hourly demand of the city is 10000m³, what is the maximum hourly consumption? |
| A. | 2700 m³ |
| B. | 27000 m³ |
| C. | 270000 m³ |
| D. | 2700000 m³ |
| Answer» B. 27000 m³ | |
| 106. |
What is the minimum water pressure available at fire hydrants? |
| A. | 80-100kN/m² |
| B. | 100-150kN/m² |
| C. | 40-60kN/m² |
| D. | 150-200kN/m² |
| Answer» C. 40-60kN/m² | |
| 107. |
What is the fire demand of the city of 1lakh population by Buston’s formula? |
| A. | 5663 |
| B. | 56630 |
| C. | 566300 |
| D. | 5663000 |
| Answer» C. 566300 | |
| 108. |
In which type of water demand, minimum average consumption of water takes place? |
| A. | Domestic water demand |
| B. | Industrial water demand |
| C. | Institutional and commercial water demand |
| D. | Fire demand |
| Answer» E. | |
| 109. |
Which is the correct statement regarding per capita demand? |
| A. | Daily water required by an individual |
| B. | Water required for various purposes by a person |
| C. | Water required by an individual in a year |
| D. | Annual average amount of daily water required by one person |
| Answer» E. | |
| 110. |
Water lost in theft and waste contributes to how much % of total consumption? |
| A. | 5 |
| B. | 10 |
| C. | 15 |
| D. | 20 |
| Answer» D. 20 | |
| 111. |
What are the symptoms of malaria? |
| A. | High temperature |
| B. | Fever |
| C. | Diarrhea and Dehydration |
| D. | All of these |
| Answer» E. | |
| 112. |
Which Diseases are caught by washing food, pots,pans,dirty hand and face? |
| A. | Water bred |
| B. | Water borne |
| C. | Water based |
| D. | Water Diseases |
| Answer» C. Water based | |
| 113. |
Only the female anopheles drinks blood, the males are |
| A. | Vegetarian |
| B. | Meat eaters |
| C. | Decomposers |
| D. | All of these |
| Answer» B. Meat eaters | |
| 114. |
The female anopheles mosquito is the vector for |
| A. | Diarrhea |
| B. | Malaria |
| C. | Dysentery |
| D. | Dengue |
| Answer» C. Dysentery | |
| 115. |
What is the indicator used in EDTA method? |
| A. | Potassium chromate |
| B. | Potassium dichromate |
| C. | Potassium chloride |
| D. | Erio chrome, black T |
| Answer» E. | |
| 116. |
What is the concentration of H⁺ ions in moles/L in water if the pOH value is 6? |
| A. | 10⁻⁶ |
| B. | 10⁻⁷ |
| C. | 10⁻⁸ |
| D. | 10⁻⁹ |
| Answer» D. 10⁻⁹ | |
| 117. |
The permissible limit of pH preferred for potable water is ___ ppm. |
| A. | 6.5-9 |
| B. | 7-8.5 |
| C. | 10-14 |
| D. | 0-7 |
| Answer» B. 7-8.5 | |
| 118. |
In which method of determining total hardness of water is based on the premise that hardness producing substance react with soap and form insoluble compounds before lather is produced? |
| A. | Clark’s method |
| B. | Hehner’s method |
| C. | Versenate method |
| D. | EDTA method |
| Answer» B. Hehner’s method | |
| 119. |
One degree of hardness is equivalent to ___ ppm. |
| A. | 2 |
| B. | 1 |
| C. | 10 |
| D. | 100 |
| Answer» C. 10 | |
| 120. |
What is the expression used for population forecasting by the geometrical increase method? |
| A. | PO (1 + R/100)ⁿ |
| B. | PO + n*x |
| C. | PO + n*x + (n (n+1) /2) *y |
| D. | PO – n*x |
| Answer» B. PO + n*x | |
| 121. |
What is the expression used for population forecasting by the incremental increase method? |
| A. | PO (1 + R/100)ⁿ |
| B. | PO + n*x |
| C. | PO + n*x + (n (n+1) /2) *y |
| D. | PO – n*x |
| Answer» D. PO – n*x | |
| 122. |
Which method of population forecast combines both arithmetical increase and geometrical increase method? |
| A. | Arithmetical increase method |
| B. | Geometrical increase method |
| C. | Incremental increase method |
| D. | Decreased rate of growth method |
| Answer» D. Decreased rate of growth method | |
| 123. |
Consider the following statements.i. The arithmetical increase method is suitable for new citiesii. The decreasing growth rate method is used where the rate of growth shows a downward patterniii. The geometrical increase method is used for older citiesWhich of the following above statements is/are correct? |
| A. | i, ii, iii |
| B. | i and iii |
| C. | Only ii |
| D. | ii and iii |
| Answer» D. ii and iii | |
| 124. |
Logistic method is also called as _______ |
| A. | Arithmetical increase method |
| B. | Geometrical increase method |
| C. | Incremental increase method |
| D. | Decreased rate of growth method |
| Answer» E. | |
| 125. |
Which method is used to measure the color of water? |
| A. | Gravimetric analysis |
| B. | Chromatography |
| C. | Tintometer method |
| D. | Hydrometer analysis |
| Answer» D. Hydrometer analysis | |
| 126. |
Identify the correct relation between the following? |
| A. | Dissolved solid = Total solid + Suspended solid |
| B. | Dissolved solid = Total solid – Suspended solid |
| C. | Total solid = Dissolved solid / Suspended solid |
| D. | Dissolved solid = Suspended solid – Total solid |
| Answer» C. Total solid = Dissolved solid / Suspended solid | |
| 127. |
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 | |
| 128. |
The range for threshold odour number is __________ |
| A. | 0-3 |
| B. | 1-5 |
| C. | 1-3 |
| D. | 0-5 |
| Answer» D. 0-5 | |
| 129. |
The size of suspended solids lies in the range of ________ |
| A. | 10⁻³ – 10⁻⁶ mm |
| B. | 10³ – 10⁶ mm |
| C. | 10⁻¹ – 10⁻³ mm |
| D. | 10¹ – 10³ mm |
| Answer» D. 10¹ – 10³ mm | |
| 130. |
Threshold odour number testing is preferred in hot water. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» C. May be True or False | |
| 131. |
The maximum permissible limit for suspended solids is ____________ |
| A. | 10 mg/l |
| B. | 20 mg/l |
| C. | 30 mg/l |
| D. | 40 mg/l |
| Answer» D. 40 mg/l | |
| 132. |
Which method of population forecast is suitable when extension is required for small duration and past record is available for long duration? |
| A. | Graphical comparison method |
| B. | Graphical extension method |
| C. | Logistic curve method |
| D. | Zoning method |
| Answer» C. Logistic curve method | |
| 133. |
Suspended solids are measured by which of the following? |
| A. | Turbidity rod |
| B. | Gravimetric test |
| C. | Chromatography |
| D. | Jackson’s turbidity meter |
| Answer» C. Chromatography | |
| 134. |
Which method is suitable if the growth rate is decreasing and the population is reaching towards saturation? |
| A. | Arithmetical increase method |
| B. | Graphical comparison method |
| C. | Zoning method |
| D. | Decreased rate of growth method |
| Answer» E. | |
| 135. |
What is the full form of NTU in context with turbidity? |
| A. | Number of transfer unit |
| B. | Neurological turbidity unit |
| C. | Nephelometric turbidity unit |
| D. | Network terminal unit |
| Answer» D. Network terminal unit | |
| 136. |
Chlorides are estimated by titration with a standard silver nitrate solution by using _______ as an indicator. |
| A. | Potassium manganate |
| B. | Potassium chloride |
| C. | Potassium chromate |
| D. | Potassium dichromate |
| Answer» D. Potassium dichromate | |
| 137. |
Which of the following statement is wrong regarding permanent hardness? |
| A. | It is also called carbonate hardness |
| B. | It is due to the presence of sulfates, chlorides and nitrates of calcium and magnesium |
| C. | It cannot be removed by boiling |
| D. | It requires special methods of water softening to get removed |
| Answer» B. It is due to the presence of sulfates, chlorides and nitrates of calcium and magnesium | |
| 138. |
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 | |
| 139. |
Carbonate hardness can be removed by adding lime to water. |
| A. | True |
| B. | False |
| C. | May be True or False |
| D. | Can't say |
| Answer» B. False | |
| 140. |
Which of the following statement is wrong regarding turbidity? |
| A. | It is an extent to which light is absorbed by particles in the water |
| B. | It is expressed in ppm |
| C. | It depends on the fineness of particle present in the water |
| D. | Turbidity rod is a laboratory method to measure turbidity |
| Answer» E. | |
| 141. |
The range of temperature of water that is required to do the temperature test is __________ |
| A. | 10-25°C |
| B. | 0-25°C |
| C. | 10-30°C |
| D. | 20-30°C |
| Answer» B. 0-25°C | |
| 142. |
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 | |
| 143. |
One JTU is equivalent to turbidity produced by __________ |
| A. | 1mg of fine silica dissolved in 1L of distilled water |
| B. | 1g of fine silica dissolved in 1L of distilled water |
| C. | 1g of fine silica dissolved in 1ml of distilled water |
| D. | 1mg of fine silica dissolved in 1ml of distilled water |
| Answer» B. 1g of fine silica dissolved in 1L of distilled water | |
| 144. |
If the PO value is 6, what does it imply? |
| A. | No perceptible odour |
| B. | Very faint odour |
| C. | Very distinct odour |
| D. | Extremely strong odour |
| Answer» E. | |
| 145. |
The average quantity of water (in lpcd) required for domestic purposes according to IS code is ________ |
| A. | 100 |
| B. | 120 |
| C. | 70 |
| D. | 135 |
| Answer» E. | |
| 146. |
What can be filled in place of the question mark in the following table? |
| A. | Excessive hard water |
| B. | Reasonably soft water |
| C. | Very hard water |
| D. | Hard water |
| Answer» E. | |
| 147. |
Given list 1 and list 2, find which of the following pair is correctly matched? |
| A. | A-5 |
| B. | B-3 |
| C. | C-4 |
| D. | D-2 |
| Answer» D. D-2 | |
| 148. |
Match list 1(calculation of fire demand) with list 2 (formulae) and select the correct answer using the codes given below.where Q = quantity of water, P = population in thousands CODE A B C D |
| A. | 1 2 3 4 |
| B. | 2 3 4 1 |
| C. | 2 1 4 3 |
| D. | 1 2 4 3 |
| Answer» B. 2 3 4 1 | |
| 149. |
The average consumption of water required in factories in lpcd is ___________ |
| A. | 10-15 |
| B. | 20-30 |
| C. | 30-45 |
| D. | 70-80 |
| Answer» D. 70-80 | |
| 150. |
WHAT_IS_THE_PERMISSIBLE_LIMITS_FOR_CONSTRUCTION_OF_SUSPENDED_MATTER_IN_WATER.?$ |
| A. | 200mg/l |
| B. | 2000mg/l |
| C. | 3000mg/l |
| D. | 500mg/l |
| Answer» C. 3000mg/l | |