A. 5 – 10 years
B. 15 – 20 years
C. 30 – 40 years
D. 40 – 50 years
Choose the wrong statement ?
A. its vapour pressure is low
B. it provides suitable meniscus for the inclined tube
C. its density is less
D. it provides longer length for a given pressure difference
E. it provides accurate readings.
A. Bad quality is acceptable, but bad grade is not.
B. Bad grade is acceptable, but bad quality is not.
C. Neither bad grade nor quality is acceptable.
D. Grade and quality is the same thing.
A. Invert level of a branch sewer is more than 60 cm that of the main sewer
B. Sewer line runs along a main road
C. Ordinary manhole cannot be built
D. Two sewer lines intersect
A. 100 cm
B. 110 cm
C. 120 cm
D. 150 cm
A. 100 m
B. 150 m
C. 200 m
D. 300 m
A. supersonics, as with projectile and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
D. all of the above
E. none of the above