A. Brick sewer
B. Cast iron sewer
C. R.C.C. sewer
D. Lead sewer
A. 100 mg/l
B. 200 mg/l
C. 300 mg/l
D. 400 mg/l
A. 200 ppm
B. 225 ppm
C. 250 ppm
D. None of these
A. ratio of inertial force to force due to viscosity
B. ratio of inertial force to force due to gravitation
C. ratio of inertial force to force due to surface tension
D. all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity
A. 0.68 m
B. 0.88 m
C. 1.36 m
D. 1.76 m
A. Near the inner surface of the pipe
B. Near the outer surface of the pipe
C. Both A. and B.
D. With elliptical cage
A. the metal piece will simply float over the mercury
B. the metal piece will be immersed in mercury by half
C. whole of the metal piece will be immersed with its top surface just at mercury level
D. metal piece will sink to the bottom
E. none of the above