52) The pipe which is installed in the house drainage to preserve the water seal of traps
Answer is:
Anti-siphonage
Related ISRO Technician-B Plumber Question Paper - 2017 (Set - 1) with Answer Key
Answer is:
Density
Explanation:
Density or mass density is defined as the mass per unit volume of a liquid at a standard temperature and pressure. Density or mass density is usually denoted by ρ(rho).
Density or mass density is expressed in kg/m3.
Mathematically, density or mass density, ρ=m/V, where
m = Mass of the liquid, and
V = Volume of the liquid.