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- Question 1 of 15
Pre-cursors to photochemical oxidants areCorrectIncorrect
- Question 2 of 15
Crown corrosion in a reinforced concrete sewer is caused by:CorrectIncorrect
- Question 3 of 15
Match the items in Group – I with those in Group – II and choose the right combination.
Group – I P. Activated sludge process Q. Rising of sludge R. Conventional nitrification S. Biological nitrogen removal
Group – II 1. Nitrifiers and denitrifiers 2. Autotrophic bacteria 3. Heterotrophic bacteria 4. DenitrifiersCorrectIncorrect
- Question 4 of 15
In a one-lane one-way homogeneous traffic stream, the observed average headway is 3.0 s. The flow (expressed in vehicles/hr) in this traffic stream isCorrectIncorrect
- Question 5 of 15
The minimum number of satellites needed for a GPS to determine its position precisely isCorrectIncorrect
- Question 6 of 15
The system that uses the Sun as a source of electromagnetic energy and records the naturally radiated and reflected energy from the object is calledCorrectIncorrect
- Question 7 of 15
The staff reading taken on a workshop floor using a level is 0.645 m. The inverted staff reading taken to the bottom of a beam is 2.960 m. The reduced level of the floor is 40.500 m. The reduced level (expressed in m) of the bottom of the beam isCorrectIncorrect
- Question 8 of 15
A reinforced concrete (RC) beam with width of 250 mm and effective depth of 400 mm is reinforced with Fe415 steel. As per the provisions of IS 456-2000, the minimum and maximum amount of tensile reinforcement (expressed in mm*mm) for the section are, respectivelyCorrectIncorrect
- Question 9 of 15
For M25 concrete with creep coefficient of 1.5, the long-term static modulus of elasticity (expressed in MPa) as per the provisions of IS:456-2000 isCorrectIncorrect
- Question 10 of 15
A propped cantilever of span L carries a vertical concentrated load at the mid-span. If the plastic moment capacity of the section is M, the magnitude of the collapse load isCorrectIncorrect
- Question 11 of 15
The porosity (n) and the degree of saturation (S) of a soil sample are 0.7 and 40%, respectively. In a 100 m cube volume of the soil, the volume (expressed in m cube) of air isCorrectIncorrect
- Question 12 of 15
A drained triaxial compression test on a saturated clay yielded the effective shear strength parameters as c = 15 kPa and ϕ = 22 degree. Consolidated Undrained triaxial test on an identical sample of this clay at a cell pressure of 200 kPa developed a pore water pressure of 150 kPa at failure. The
deviator stress (expressed in kPa) at failure isCorrectIncorrect
- Question 13 of 15
A 4 m wide rectangular channel, having bed slope of 0.001 carries a discharge of 16 m3/s. Considering Manning’s roughness coefficient = 0.012 and g = 10 m/s2, the category of the channel slope isCorrectIncorrect
- Question 14 of 15
A hydraulically efficient trapezoidal channel section has a uniform flow depth of 2 m. The bed width (expressed in m) of the channel isCorrectIncorrect
- Question 15 of 15
Effluent from an industry ‘A’ has a pH of 4.2. The effluent from another industry ‘B’ has double the hydroxyl (OH-) ion concentration than the effluent from industry ‘A’. pH of effluent from the industry ‘B’ will beCorrectIncorrect