DDA JE Civil Paper 1 April 2023 Shift 3 Part 1

Q1. Consider the given statements with respect to strength of compacted soil and identify the correct answer.
Statement A: Shear strength of compacted clay does not depend on method of compaction.
Statement B: Strength of cohesive soils compacted dry of optimum is lower than those compacted wet of optimum.

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

Correct Option: 1

Q.2 Consider the given statements with respect to characteristic features used while plotting a contour plan and identify the correct answer.
Statement A: Contour lines which are equally spaced, indicate uniform slope.
Statement B: Contour lines of different elevations cannot cross each other in case of overhanging cliff.

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

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 3 Part 1

Q.3 According to IS: 6403-1981, in the computation of ultimate net bearing capacity for strip footings, what is the value of shape factor (S) to be used for square shape of base?

11.3
2.1.7
3. 0.9
4.0.5

Correct Option: 1

Q4 According to IS 800-2007, the maximum value of effective slenderness ratio for members always under tension (other than pre-tensioned members) is

1 500
2.350
3. 250
4. 400

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 3 Part 1

Q5 Which of the following minor losses in pipe flow is taken as 0.5 where V is velocity of liquid in pipe?

1. Loss of head due to obstruction in the pipe.
2. Loss of head at the entrance of the pipe with sharp cornered entrance.
3. Loss of head at the exit of the pipe with sharp cornered exit.
4. Loss of head due to friction.

Correct Option: 2

Q.6 As per IS 10500-2012, the acceptable limit of calcium content in drinking water is

1 150
2.75
3.90
4. 30

Correct Option: 2

Q7.Calculate the mean hydraulic radius of an open channel whose cross-sectional area is 30 m2 and
wetted perimeter is 80 m.

1 0.375 m
2. 0.925 m
3. 2.667 m
4.1.265 m

Correct Option:1

Q8 Which of the following is NOT a product of hydration of cement?

1 calcium silicate
2. Calcium silicate hydrate
3. Calcium aluminate hydrate
4. Calcium hydroxide

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 3 Part 1

Q9 According to IS 12269: 2013, which of the following is NOT a performance improver in cement?

1 Metakaolin
2. Fly ash
3. Limestone
4. Stone dust

Correct Option: 4

Q.13 As per IS 10262: 2019, what is the assumed value of standard deviation (S) for M55 grade of concrete?

1.5 N/mm2
2. 2 N
3. 4 Num
4.3 N/mm2

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 3 Part 1

Q.14 As per IS456: 2000, the permissible limit for chlorides present in water shall NOT be greater than plain cement concrete.
for making

1 1,000 mg/1
2. 500 mg/l
3. 2,000 mg/1
4. 1,500 mg/1

Correct Option: 3

Q.15 Consider the given statements with respect to sewer appurtenances and identify the correct answer.
Statement A: Clean out is an inclined pipe with its one end to the underground sewer line and the other brought up to ground level for cleaning purpose.
Statement B: The depth of shallow manholes are in the range of 2.5 m to 3.0 m.

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

Correct Option: 2

Q.16 What is the correct unit of ‘maturity of concrete”?

1 degree centigrade hours
2. degree Fahrenheit minutes
3. degree centigrade second
4. degree centigrade minutes

Correct Option:1

DDA JE Civil Paper 1 April 2023 Shift 3 Part 1

Q18 Which of the following laboratory tests/instruments is NOT used to assess physical properties of cement?

1. Viscometer test
2. Blaine’s air permeability test apparatus
3. Soundness test
4. Vicar’s apparatus

Correct Option: 1

Q19. A prismatic bar with cross-section 30 mm x 30 mm and length 1 m is subjected to an axial tensile force of magnitude 90 KN, within the elastic limit of material. Calculate Young’s Modulus of Elasticity if it experiences a strain of 0.0005.

1 225 × 103 N/mm
2. 167 × 103 N/mm2
3. 125 10 N/mm
4 200 10 N/mm?

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 3 Part 1

Q.21 In a compass surveying work, it is observed that the direction of a line AB is N 65°30’W in quadrantal bearing system. Find out the direction of the same line in the whole circle bearing system.

1 294 30″
2. 114°30′
3. 154-30
4. 425-30

Correct Option:1

Q22 Consider the given statements with respect to buckling of columns and identify the correct answer.
Statement A: Local buckling in steel columns can be prevented by providing suitable width-to-thickness ratios to the compression elements.
Statement B: Flexural torsional buckling failure in steel columns can occur in those sections with one axis of symmetry and also in sections with no axis of symmetry.

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

Correct Option: 4

Q23 As per IS 10500: 2012, ‘drinking water specifications”, the acceptable limit for colour in the water is

1. 10 Hazen units
2. 15 Hazen units
3. 20 Hazen units
4. 5 Hazea units

Correct Option: 4

DDA JE Civil Paper 1 April 2023 Shift 3 Part 1

Q.24 Approximate specific gravity value of a soil constituent quartz is

1 5.65
2. 1.78
3. 3.83
4. 2.65

Correct Option: 4

Q.25 Which of the following types of surveying is NOT a classified type of surveying based upon the instruments or methods employed?

1. Plane table survey
2. Geological survey
3. Chain survey
4. Theodolite survey

Correct Option: 2

Q26. Consider the given statements with respect to centre of pressure for fluids at rest and identify the correct answer. Statement A: The centre of pressure is calculated by using Varignon’s theorem of moments.
Statement B: The distance of centre of pressure from free surface of liquid depends in density of liquid.

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

Correct Option: 4

Q.27 Consider the given statements with respect to surface tension and capillarity in liquids and identify the INCORRECT statement.

1.Since soap solution has a negligible value of surface tension, even small pressure of blowing a soap bubble will tend to grow larger in diameter.
2. A falling rain drop becomes spherical due to cohesion and surface tension.
3. Surface tension is due to cohesion between particles at the free surface.
4. Capillary action is due to both cohesion and adhesion.

Correct Option: 1

DDA JE Civil Paper 1 April 2023 Shift 3 Part 1

Q.28 Select the option which is the odd one with respect to type of impurities present in water.

1. Silts
2. Selenium
3. Sodium
4. Calcium

Correct Option: 1

Q.29 Which of the following method uses Ca(OTT)2 (slaked lime) for water softening?

1. Clark’s method
2. Colorimetric method
3. Hehner’s method
4. Versenate method

Correct Option: 1

Q.30 As per IS 456: 2000, nominal cover thickness to meet the durability requirements in moderate exposure conditions shall NOT be less than

1 20 mm
2. 10 mm
3. 30 mm
4. 40 mm

Correct Option: 3

DDA JE Civil Paper 1 April 2023 Shift 3 Part 1