Question No 1: When a retaining wall moves away from the backfill, the pressure exerted on the wall is termed as…
A: Passive earth pressure
B: Swelling pressure
C: Pore pressure
D: Active earth pressure
Question No 2: If the pump head is 75m, discharge is 0.464m3/s and the motor speed is 1440 rpm at rated condition, the specific speed of the pump is about……
Question No 3: Flocculation is a process….
A: That removes algae from stabilization pond effluent
B: That promotes the aggregation of small particles into larger particles to enhance their removal by gravity.
C: Both (a) and (b)
D: None of these
Question No 4: Two primary air pollutants are….
A: Sulphur oxide and ozone
B: Nitrozen oxide and peroxyacetynitrate
C: Sulphur oxide and hydrocarbon
D: Ozone and peroxyacetynitrate
Question No 5: The effective length of a circular electric pole of length L and constant diameters erected on ground is….
A: 0.80 L
B: 1.20 L
C: 1.50 L
D: 2.00 L
Question No 6: The superelevation needed for a vehicle travelling at a speed of 60 kmph on a curve of radius 128 m on a surface with a coefficient of friction of 0.15 is….
Question No 7: The toughness index of clayey soils is given by….
A: Plasticity index / Flow index
B: Liquid limit / Plastic limit
C: Liquidity index / Plastic limit
D: Plastic limit / Liquidity index
Question No 8: The removal of dissolved organic matter occurs in…..
A: Slow sand filters
B: Trickling filters
C: Rapid sand filters
D: Dual media filters
Question No 9: The Bowen ratio is defined as….
A: Ratio of heat and vapour diffusivities
B: Proportionality constant between vapour heat flux and sensible heat flux.
C: Ratio of actual evapotranspiration and potential evapotranspiration.
D: Proportionality constant between heat energy used up in evaporation and the bulk radiation from a water body.
Question No 10: The order or the flexibility matrix for a structure is….
A: Equal to the number of redundant forces
B: More than the number of redundant forces
C: Less than the number of redundant forces
D: Equal to the number of redundant forces plus three
Question No 11: Two footings, one circular and the other square, are founded on the surface of a purely cohesionless soil. The diameter of the circular footing is same as that of the side of the square footing. The ratio of their ultimate bearing capacities is….
Question No 12: Muskingum method for routing of flood….
A: Is used for routing floods through reservoirs.
B: Is a method of routing that uses continuity the momentum equations
C: Is a hydrologic method of routing floods through streams
D: Is one in which only energy equation is used
Question No 13: Water flows at a depth of 0.1m with a velocity of 6 m/s in a rectangular channel. The alternate depth is….
A: 0.30 m
B: 0.40 m
C: 0.86 m
D: 0.81 m
Question No 14: An isochrones is a line on the basin map…..
A: Joining rain gauge stations having equal rainfall-duration
B: Joining points having equal rainfall depth in a given time interval
C: Joining points having equal time of travel of surface runoff to the catchment outlet
D: Joining points which are at equal distance from the catchment outlet
Question No 15: In a section, shear centre is a point through which, if the resultant load passes, the section will not be subjected to any….