DDA JE Civil Paper 29 March 2023 Shift 2 Part 3

Q.61 Which of the following conditions is valid in the case of flow through parallel pipes?

1. The rate of discharge in the main line is not equal to the sum of the discharges in each of the parallel pipes.
2. The loss of head in each parallel pipe is different.
3. The velocity of flow in the main line is equal to the sum of the velocities in each of the parallel pipes.
4. The rate of discharge in the main line is equal to the sum of the discharges in each of the parallel pipes.

Correct Option: 4

Q.62 According to IS: 456-2000, what is the required slump value for placing the concrete in lightly reinforced sections in slabs, beams and column?

1. 25-75 mm
2. 10-25 mm
3. 75-100 mm
4. 100-150 mm

Correct Option: 1

DDA JE Civil Paper 29 March 2023 Shift 2 Part 3

Q.63 In reinforced concrete members, torsion generally occurs in combination with:

1. shear bond and shear compression
2. diagonal shear and shear bond
3. flexure and transverse shear
4. punching shear and shear compression

Correct Option: 3

Q.64 According to IS: 10500-2012, the maximum permissible limit of total alkalinity as calcium carbonate present in drinking water in the absence of an alternate source of water is:

1. 400 mg/1
2. 1000 mg/1
3. 600 mg/1
4. 200 mg/1

Correct Option: 3

Q.65 Which of the following beams is an indeterminate beam?

1. One end hinge and other end roller beam
2. Simply supported beam
3. Cantilever beam
4. Continuous beam

Correct Option: 4

DDA JE Civil Paper 29 March 2023 Shift 2 Part 3

Q.66 The flexural strength of concrete for M25 grade concrete as per IS: 456-2000 is:

1- 2.5 N/mm2
2. 2.0 N/mm2
3. 3.0 N/mm2
4.3.5 N/mm2

Correct Option: 4

Q.69 Which of the following theorems states that if a beam has ‘n’ supports, the end being fixed, than the same number of equations required to determine the support moments may be obtained from the consecutive pairs of spans?

1. Moment area theorem
2. Mohr’s theorem
3. Clapeyron’s theorem
4. Strain energy theorem

Correct Option: 3

DDA JE Civil Paper 29 March 2023 Shift 2 Part 3

Q.70 Which of the following are the components of water treatment systems? Select only the sewer appurtenances.
1. Manholes
2. Flushing tanks
3. Imhoff tank
4. Aeration tank
5. Storm regulators

1. 1, 3 and 4
2. 3, 4 and 5
3. 1, 2 and 5
4. 2, 3 and 4

Correct Option: 3

Q.71 Which of the following is the performance efficiency of slow sand filter?1. It removes about 98 to 99% bacteria.
2. It removes turbidity to the extent of 50 PPM.
3. It does not remove colour of raw water.
4. It removes about 95% colloidal matter.

1. 2 and 3
2. 1 and 2
3. 1 and 4
4. 3 and 4

Correct Option: 2

DDA JE Civil Paper 29 March 2023 Shift 2 Part 3

Q.72 The addition of chlorine at intermediate points generally at service reservoirs and booster pumping stations in water supply distribution is called

1. pre-chlorination
2. de-chlorination
3. post-chlorination
4. re-chlorination

Correct Option: 4

Q.73 As per the Central Pollution Control Board norms, the maximum permissible limit of 3 days biochemical oxygen demand at 27°C in wastewater effluent when discharged into an inland river or stream is

1. 500 mg/1
2. 350 mg/1
3. 30 mg/1
4. 100 mg/1

Correct Option: 3

Q.74 The phenomenon of producing higher stresses near the junction of a web and lower stresses at points away from the web of a steel beam is known as

1. elastic critical moment
2. shear lag
3. lateral buckling
4. moment of resistance

Correct Option: 2

DDA JE Civil Paper 29 March 2023 Shift 2 Part 3