A lysimeter is used to measure : infiltration evaporation evapotranspiration rad

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1. Stopping sight distance is the minimum distance available on a highway which is the
Options
A. distance of sufficient length to stop the vehicle wihtout collision.
B. distance visible to a driver during night driving.
C. height of the object above the road surface.
D. distance equal to the height of the driver's eye above the road surface.

2. The particle size distribution curves are extremely useful for the classification of
Options
A. fine grained soils
B. coarse grained soils
C. both coarse grained and fine grained soils
D. silts and clays

3. In deriving the equation for the hydraulic jump in a rectangular channel in terms of the conjugate depths and the initial Froude number.
Options
A. continuity equation and energy equation are used
B. continuity equation and momentum equation are used
C. equations of continuity, mementum and energy are used
D. gradually varied flow equation is used

4. A body moving through still water at 6 m/sec produces a water velocity of 4 m/sec at a point 1 m ahead. The difference in pressure between the nose and the point 1 m ahead would be
Options
A. 2, 000 N/m²
B. 10, 000 N/m²
C. 19, 620 N/m²
D. 98, 100 N/m²

6. One of the probable causes of rutting on flexible pavements is
Options
A. excessive stripping of binder material from the wearing course
B. use of flaky aggregates in the wearing course
C. inadequate compaction of pavement layers
D. high wind speeds

9. The group efficiency of a pile group
Options
A. will be always less than 100%.
B. will be always greater than 100%.
C. may be less than 100% or more than 100%.
D. will be more than 100% for pile groups in cohensionless soils and less than 100% for those in cohesive soils.

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