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  • Question
  • Water flows through a convergent mouthpiece of diameter 4 cm at convergence under a head of 3 metres. If the maximum vacuum pressure is 9 metres of water, the maximum diameter of divergence, to aviod separation of flow, is


  • Options
  • A. 4 cm
  • B. 6 cm
  • C. 2 cm
  • D. 23 cm.

  • Correct Answer
  • 2 cm 


  • More questions

    • 1. From the point of tangency before an intersection, the route markers are fixed at a distance of

    • Options
    • A. 15 m to 30 m
    • B. 20 m to 35 m
    • C. 40 m to 50 m
    • D. 50 m to 75 m
    • E. 100 m to 150
    • Discuss
    • 2. The sewer which collects the discharge from a collecting system and delivers it to a treatment plant, is known

    • Options
    • A. house sewer
    • B. lateral sewer
    • C. branch sewer
    • D. sewer outfall.
    • Discuss
    • 3. The ratio of the effective length of a column and minimum radius of gyration of its cross-sectional area, is known

    • Options
    • A. buckling factor
    • B. slenderness ratio
    • C. crippling factor
    • D. none of these.
    • Discuss
    • 4. The distance between main gears is 10 m, and the distance of nose gear from centre of main gears is 30 m. If the angle of turning is 60°, the distance of centre of rotation from the nearer main gear, is

    • Options
    • A. 12.30 m
    • B. 11.30 m
    • C. 10.30 m
    • D. 9.30 m
    • Discuss
    • 5. The dimensions of a rectangular settling tank are : length 24 m, width 6 m and depth 3 m. If 2 hour detention period for tanks is recommended, the rate of flow of sewage per hour, is

    • Options
    • A. 204 cu m
    • B. 208 cu m
    • C. 212 cu m
    • D. 216 cu m
    • E. 220 cu m.
    • Discuss
    • 6. DGPS is based on the concept that bais errors in the position of locations in a given local area, are same if their distances are within

    • Options
    • A. 25 km
    • B. 50 km
    • C. 75 km
    • D. 100 km
    • E. 1250 km
    • Discuss
    • 7. A bar of square section of area a2 is held such that its one of its diameters is vertical. The maximum shear stress will develop at a depth h where h is

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 8. When a canal flowing under pressure is carried below a natural drainage such that its F.S.L. does not touch the underside of the supporting structure, the structure so provided, is called

    • Options
    • A. syphon
    • B. aqueduct
    • C. super passage
    • D. syphon-aqueduct.
    • Discuss
    • 9. The maximum shear stress occurs on the filament which makes an angle with the horizontal plane equal to

    • Options
    • A. 30°
    • B. 45°
    • C. 60°
    • D. 90°
    • Discuss
    • 10. A kink is made in stock rails, ahead of the toe of switch at a distance of

    • Options
    • A. 10 cm
    • B. 15 cm
    • C. 20 cm
    • D. 30 cm
    • Discuss


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