DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q1. Consider the below statements with respect to the turbidity of water and identify the correct answer.
Statement A: Turbidity of water is imparted by the dissolved matter present in water.
Statement B: Jackson’s turbidimeter is a laboratory apparatus which is used to measure the turbidity of water.

1. Statement A is correct and B is incorrect.
2. Both statements are correct.
3. Both statements are incorrect.
4. Statement B is correct and A is incorrect.

Correct Option: 4

Q.2 Which of the following statements is INCORRECT with respect to the water distribution system?

1. Water available for firefighting will be limited since it is being supplied by only one water main in the dead-end system.
2. Sediments accumulate due to stagnation and can cause bacterial growth in the dead-end system.
3.In case of repair or break down in a pipe, the area connected to that pipe will continue to receive water from another side in the grid iron system.
4.Less number of cut-off valves are necessary in the case of a circular distribution system when compared to dead end system.

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.3 Identify the direct method of contouring in a survey work.

1. Contouring by cross sections
2. Contouring by tacheometric method
3. Contouring by vertical and horizontal control
4. Contouring by squares

Correct Option: 3

Q.4 Calculate the target mean compressive strength at 28 days for M25 grade concrete, if the assumed standard deviation is 4 N/mm2.

1. 31.60 N/mm2
2. 42.25 N/mm2
3. 38.25 N/mm2
4- 25.00 N/mm2

Correct Option: 1

Q5. The natural water content, liquid limit, and plastic limit of a clay sample are 22%, 44%, and 19%, respectively. Calculate its consistency index.

1. 0.97
2. 0.65
3. 0.76
4. 0.88

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.6 French polish is a type of______used to hide the grain defects on hardwood substances.

1. spirit varnish
2. flat varnish
3. water varnish
4. asphalt varnish

Correct Option: 1

Q.7 A fully saturated soil mass is an example of a

1. two-phase system
2. one-phase system
3. three-phase system
4. four-phase system

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.8 Consider the below statements with respect to cutback bitumen and identify the correct answer.
Statement A: The addition of petroleum hydrocarbon (Kerosene) decreases the viscosity of the bitumen.
Statement B: The addition of petroleum hydrocarbon (Kerosene) increase the penetration of bitumen on the asphalt
surface.

1. Both statements are correct.
2. Both statements are incorrect.
3. Statement B is correct and A is incorrect.
4. Statement A is correct and B is incorrect.

Correct Option: 1

Q.9 Consider the below statements with respect to retaining walls subjected to earth pressure and identify the correct answer. (Assume identical conditions for the soil)
Statement A: Active earth pressure is developed when the wall moves away from the backfill.
Statement B: The active earth pressure is greater than the earth pressure at rest.

1. Statement B is correct and A is incorrect.
2. Both statements are incorrect.
3. Statement A is correct and B is incorrect.
4. Both statements are correct.

Correct Option: 3

Q.10 In Tacheometric surveying, the Subtense bar method is also called the

1. fixed hair method
2. normal chord method
3. movable hair method
4. tangential method

Correct Option: 3

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.11 Consider the below statements with respect to the triangular weir and identify the correct answer.
Statement A: The triangular weir gives less accurate results than a rectangular weir for measuring low discharges.
Statement B: In the case of a triangular weir with known values of the angle of weir and co-efficient of discharge, the height of water over the weir is the only data required for the computation of discharge.

1. Both statements are correct.
2. Both statements are incorrect.
3. Statement A is correct and B is incorrect.
4. Statement B is correct and A is incorrect.

Correct Option: 4

Q.12 According to IS 1121 (Part I):1974, the diameter or lateral dimension (distance between opposite vertical faces) of a test piece of stone used for finding its compressive strength shall not be less than

1. 25 mm
2. 50 mm
3. 75 mm
4. 100 mm

Correct Option: 2

Q.13 Which of the following is NOT a grading characteristic estimated from the particle size distribution curve of a soil?

1. Effective size
2. Coefficient of curvature
3. Coefficient of compressibility
4. Uniformity coefficient

Correct Option: 3

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.14 Which of the following component of oil paint is used to thin the paint, increases the spread, and is also known as thinner?

1. Pigment
2. Adulterant
3. Solvent
4. Vehicle

Correct Option: 3

Q.16 According to the Ministry of Environment, forest and climate change Government of India, which of the following classes of water can be used for the propagation of wildlife and fisheries?

1. Class D
2. Class C
3. Class B
4. Class A

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.17 Find the surface tension in a soap bubble of 80 mm diameter, having an internal pressure 3 N/m2 in excess of the outside pressure.

1. 0.01 N/m
2. 0.08 N/m
3. 0.24 N/m
4. 0.03 N/m

Correct Option: 4

Q.18 According to IS 800-2007, the maximum value of effective slenderness ratio for compression flange of a beam against lateral torsional buckling is

1. 300
2. 415
3. 280
4. 200

Correct Option:1

Q.19 Which of the following is NOT a dissolved impurity present in water?

1. Silt
2. Hydrogen sulphide
3. Nitrates
4. Salts

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.20 Identify the INCORRECT statement with respect to the advantages of the aeration technique used in water treatment.

1. It decreases the carbon dioxide content of water.
2. It reduces the pH value of water.
3. It removes the taste and odour caused by gases due to organic decomposition.
4. It converts iron and manganese from their soluble state to insoluble state.

Correct Option: 2

Q.21 The maximum water content at which reduction in water content will not cause a decrease in the volume of a soil mass is known as the

1. liquidity index
2. shrinkage limit
3. plastic limit
4. toughness index

Correct Option: 2

Q.22 Consider the below statements with respect to Sewer appurtenances used in the sewerage system and identify the correct answer.
Statement A: Lamphole may be located when there is a change in the direction or gradient of the sewer in between two closely spaced manholes.
Statement B: Flushing tanks shall be constructed when there is a steeper downward gradient along the alignment of the sewer line.

1. Statement B is correct and A is incorrect.
2. Statement A is correct and B is incorrect.
3. Both statements are incorrect.
4. Both statements are correct.

Correct Option: 2

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.24 For open channel flow with hydraulic radius as characteristic length, the flow is classified as laminar, if Reynold’s number of the flow is,

1. more than 1000
2. less than 500
3. between 500 to 2000
4. less than 1000

Correct Option: 2

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.25 Consider the below statements with respect to characteristics of the bending moment diagram (BMD) for beam and identify the correct answer.
Statement A: If a beam is subjected to a uniformly distributed load throughout its span, the shape of BMD will be a cubic parabolic curve.
Statement B: If a cantilever beam is subjected to a uniformly varying load (UVL) throughout its span the maximum value of bending moment will be at a distance of 2/3rd of the span measured from zero intensity of UVL.

1. Statement A is correct and B is incorrect.
2. Statement B is correct and A is incorrect.
3. Both statements are correct.
4. Both statements are incorrect.

Correct Option: 4

Q.26 As per IS 456:2000, the maximum area of tension reinforcement shall not exceed area of the beam.
of the gross cross sectional

1. 6.0%
2. 0.8%
3. 2.5%
4. 4.0%

Correct Option: 4

Q27. Following the working stress method of design as per IS 456:2000, calculate the modular ratio of M30 grade concrete subjected to compressive stress due to bending, considering the permissible compressive stress in M30 grade concrete
in bending as 10 N/mm2.

1- 16.00 N/mm2
2. 9.33 N/mm2
3. 11.25 N/mm2
4- 14.00 N/mm2

Correct Option: 2

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.29 As per IS 456:2000, The cross-sectional area of longitudinal reinforcement shall be not less than cross-sectional area of the column and the diameter of these bars shall not be less than

1. 4.0%, 12 mm
2. 0.8%, 10 mm
3. 4.0%, 10 mm
4. 0.8%, 12 mm

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

Q.30 Identify the INCORRECT statement with respect to the influence of compaction on the properties of soil.

1. A well-compacted soil shows reduced compressibility when compared to poorly compacted soil.
2. A well-compacted soil shows increased shear strength when compared to poorly compacted soil.
3. A well-compacted soil shows increased density when compared to poorly compacted soil.
4. A well-compacted soil shows increased permeability when compared to poorly compacted soil.

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 1 Part 1

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