Perforated cover plates are particularly suitable for built up sections consisti

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Question
Perforated cover plates are particularly suitable for built up sections consisting of
Options
A. channels placed back to back
B. channels placed toe to toe
C. four angle box section
D. all the above.

Correct Answer

four angle box section

More questions

2. Pick up the correct statement from the following:
Options
A. The percentage of absorption for firebricks varies from 5 to 10
B. The percentage of silica in silica bricks is to the extent of about 95 to 97 percent
C. Roughly 1 to 2 percent of lime in silica bricks is added to act as binding material
D. The compressive strength of silica bricks is about 150 kg/cm²
E. All the above.

4. The equation which is used for determining the velocity of ground water flow in metres per day is known as
Options
A. Meinzer's formula
B. Slichter's formula
C. Darcy's formula
D. Hazen formula.

5. The peak discharge of the instantaneous unit hydrograph of a basin, when compared to the peak discharge of a 4-hour unit hydrograph of that basin, would be
Options
A. greater
B. equal
C. equal or lesser
D. lesser

6. Road width 8.8 m of two lane National highways or State highways in mountainous terrain
Options
A. excludes the width of parapet (0.6 m)
B. excludes the width of side drain (0.6 m)
C. excludes the width of parapet and side drain
D. includes the width of parapet and side drain

7. Discharge curve may be extended by logarithmic method if
Options
A. cross section of river is uniform
B. river is broader and shallower
C. river is of any type
D. none of these.

8. Based on flow quality, the sequence of pipes is
Options
A. A.C. pipes, G.I. pipes, C.I. pipes, PVC pipes
B. C.I. pipes, G.I. pipes, A.C. pipes, PVC pipes
C. C.I. pipes, G.I. pipes, PVC pipes, A.C. pipes
D. None of these.

9. A tube well having a capacity of 4 m³/hour operates for 20 hours each day during the irrigation season. How much area can be commanded if the irrigation interval is 20 days and depth of irrigation is 7 cm?
Options
A. 1.71 x 10⁴ m²
B. 1.14 x 10⁴ m²
C. 22.9 x 10⁴ m²
D. 2.29 x 10⁴ m²

10. Pick up the incorrect statement from the following :
Options
A. Septic tanks are horizontal continuous flow type of sedimentation tanks
B. Septic tanks are generally provided a detention period of 12 to 36 hours
C. Septic tanks are completely covered and high vent shafts are provided for the escape of foul gases
D. Septic tanks are generally classified as tanks which work on the principle of anaerobic decomposition
E. None of these.

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