DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q1. A natural soil sample has specific gravity of 2.5, dry density of 1.5 g/cm2 and wet density of 1 g/cm3. Find the void ratio of soil sample.

1. 225 2.25
2. 0.67
3. 1.98
4.1.67

Correct Option: 2

Q.2 The purpose of providing frog in clay bricks is to:

1. form a key for holding the mortar
2 form a reinforced cement column
3. circulate air in the brick wall
4. drain out the moisture or water

Correct Option: 1

Q3. Coulomb’s equation for shear strength is given by:
Where, c-unit cohesion
s-shear strength
G-total stress
p-angle of shearing resistance

1. c=s-otano
2 cs+otan
3. 80+ ctan
4. Sσctan

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q.4 Shrinkage limit of soli is defined as:

1. the maximum water content at which a reduction of water content will not cause a decrease in the volume of soil mass
2. the minimum water content below which the soil stops behaving as a plastic material
3. the water content at which the soil changes from plastic state to shrinkage state
4. the water content at which the soil changes from liquid state to plastic state

Correct Option: 1

Q.6 In plate girders, diagonal bucking of web occurs when:

1. the ratio of thickness of flange to clear depth (ty/d) exceeds 65
2. the ratio of thickness of web to clear depth (t,,/d) exceeds 85
3. the ratio of clear depth to thickness of web (d/t,,) exceeds 85
4. the ratio of clear depth to thickness of flange (d/t,) exceeds 65

Correct Option: 3

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q.7 Read the given statements related to air voids present in concrete and select the correct option.
1. Entrained air is intentionally incorporated, minute spherical bubbles of size ranging from
5 microns to 80 microns distributed evenly in the entire mass of concrete.
2. The entrapped air is the voids present in the concrete due to insufficient compaction.

1. Both the statements are false
2. Both the statements are true
3. Statement 1 is true but statement 2 is false
4. Statement 1 is false but statement 2 is true

Correct Option: 2

Q.8 Which of the following components of theodolite is/are used to centre the instrument exactly over the station mark?

1. Lower plate
2. Levelling head
3. Plumb bod
4. Screws

Correct Option: 2

Q.9 What is the range of slump values used as a measure for medium degree of workability of fresh concrete?

1. 25-50 mm
2. 0-25 mm
3. 50-75 mm
4. 75-150 mm

Correct Option: 3

Q.11 Flocculation of particles in clayey soils is a result of which type of stabilisation?

1. Bituminous stabilisation
2. Cement stabilisation
3. Lime stabilisation
4. Polymer stabilisation

Correct Option: 3

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q12. A simply supported reinforced concrete beam of size 300 x 500 mm effective is reinforced with 4 bars of 16 mm diameter HYSD steel of grade Fe415. Determine the development length of the bars. Take design anchorage bond stress for M20 concrete and Fe415 steel is 2 MPa.

1. 656.5 mm
2. 722.1 mm
3. 945.5 mm
4. 1444.2 mm

Correct Option: 2

Q.13 According IS 456-2000, in T-beams and L-beams, transverse reinforcement or shear and torsion shall pass around longitudinal bars located close to:

1. the outer face of the flange
2. the inner face of the flange
3. the centroid of the T or L beam
4. the middle of the web

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q.15 What is the threshold temperature for hot weather concreting?

1. Greater than 40°C
2. Greater than 50°C
3. Greater than 60°C
4. Greater than 30°C

Correct Option: 1

Q.16 The failure of a riveted joint due to tearing of the plate between the rivet hole and the edge is avoided, if the distance between the centre of rivet and the nearest edge of the plate is equal to:

1. 1.5 times the diameter of the rivet
2. 1.8 times the diameter of the rivet
3. 1.3 times the diameter of the rivet
4. 1.1 times the diameter of the rivet

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q.17 When steel beams are bent about yy-axis, the maximum permissible bending stress in compression or tension should NOT exceed

1. 1.2 times the characteristic strength
2. 0.66 times the characteristic strength
3. 0.35 times the characteristic strength
4. 0.85 times the characteristic strength

Correct Option: 2

Q.18 ‘Autoclave’ method of testing ordinary Portland cement is to determine:

1. fineness of cement
2. compressive strength of cement
3. setting time of cement
4. soundness of cement

Correct Option: 4

Q.19 Which of the following sewer appurtenances is used to collect the debris, sand, grit, etc., flowing with stormwater?

1. Catch basins
2. Manholes
3. Cleanouts
4. Inlets

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q.20 The design for the limit state of collapse in flexure shall NOT be based on which of the following assumptions?

1. Plane sections normal to the axis remain plane after bending.
2. The tensile strength of the concrete is ignored.
3. The maximum compressive strain in concrete in axial compression is taken as 0.002.
4. The maximum strain in concrete at the outermost compression fibre is taken as 0.0035 in bending.

Correct Option: 3

Q.21 Determine the limiting moment of resistance of the singly reinforced beam section of size 100 x 200 mm effective to carry a factored moment of 200 kNm. The concrete mix and steel used is M20 and Fe415, respectively.

1. 18.25 kNm
2. 22.21 kNm
3. 26.50 kNm
4. 11.10 kNm

Correct Option: 4

Q.22 The water pressure of 2 kg/cm2 is maintained in water supply distribution mains for

1. residential districts up to 7 storeys
2. residential districts up to 5 storeys
3. residential districts up to 10 storeys
4. residential districts up to 3 storeys

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q.23 The ratio of pressure energy change inside a runner to the total energy inside the runner is called:

1. speed ratio of a turbine
2. degree of reaction of a turbine
3. efficiency of a turbine
4. flow ratio of a turbine

Correct Option: 2

Q.24 The alidades in plane table survey are used to determine

1. directions of objects
2. distance of the object
3. height of the object
4. angle of the object

Correct Option: 1

Q25. Select the option that is true regarding the following two statements labelled Assertion (A) and Reason (R). (A): A pump lifts water from a lower level to a higher level.
(R): The mechanical energy in the pump is converted into pressure energy.

1. A is false but R is true
2. A is true but R is false
3. Both A and R are individually true and R is the correct explanation of A
4. Both A and R are individually true but R is not the correct explanation of A

Correct Option: 3

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q.26 Clapeyron’s theorem is used solve:

1. simply supported beam
2. fixed beam
3. cantilever beam
4. continuous beam

Correct Option: 4

Q.27 A spillway having its downstream end is in the form of a reverse curve which turns the flow into the apron of a stilling basin or into the spillway discharge channel is called:

1. chute spillway
2. cascade spillway
3. siphon spillway
4. ogee spillway

Correct Option: 4

Q.28 ‘Rhyolite’ rocks are a type of:

1. metamorphic rocks
2. sedimentary rocks
3. argillaceous rocks
4. igneous rocks

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

Q29. The following are the necessary conditions that are satisfied by most economical channels.

1. Hydraulic mean depth is half of the depth of flow.
2. The base width of the channel is twice the depth of flow.
3. Half of the top width is equal to one of the sloping sides.
4. A semicircle drawn from midpoint of top width radius, equal to depth of flow will touch three sides of the channel.
Select the conditions for trapezoidal channel.
1. Conditions 1, 2, 3
2. Conditions 1 and 3
3. Conditions 1 and 2
4. Conditions 1, 3, 4

Correct Option: 4

Q.30 The fine-grained soils in the Indian standard classification system are subdivided into:

1. low and medium compressibility of soils
2. medium and high compressibility of soils
3. low and high compressibility of soils
4. low, medium, and high compressibility of soils

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 2 Part 1

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