Explore topic-wise MCQs in Civil Engineering.

This section includes 182 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

151.

Surface water can act as a source of water in water supply scheme.

A. true
B. false
Answer» B. false
152.

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
153.

The maximum discharging capacity of a retarding reservoir should not be equal to the maximum safe carrying capacity of the channel downstream.

A. true
B. false
Answer» C.
154.

As the reservoir elevation increases, the outflow discharge increases.

A. true
B. false
Answer» B. false
155.

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
156.

In which of the following reservoir the flood crest downstream can be better controlled and regulated properly?

A. distribution reservoir
B. multipurpose reservoir
C. storage reservoir
D. retarding reservoir
Answer» D. retarding reservoir
157.

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.
158.

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
159.

In which of the following units, design period is maximized?

A. distribution system
B. demand reservoir
C. water treatment unit
D. pipe mains
Answer» C. water treatment unit
160.

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
161.

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
162.

What is the design discharge for intake structures?

A. maximum daily demand
B. maximum hourly demand
C. maximum weekly demand
D. average daily demand
Answer» B. maximum hourly demand
163.

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
164.

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
165.

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
166.

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.
167.

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
168.

Water lost in theft and waste contributes to how much % of total consumption?

A. 5
B. 10
C. 15
D. 20
Answer» D. 20
169.

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.
170.

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
171.

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
172.

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
173.

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
174.

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.
175.

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
176.

Threshold odour number testing is preferred in hot water.

A. true
B. false
Answer» C.
177.

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
178.

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
179.

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
180.

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
181.

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
182.

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