Threshold limit value (TLV) i.e., the maximum permissible safe limit of phosgene gas which Hitler used to use to kill his enemies in ‘gas chamber’ is about ________ ppm?
Correct answer
D. < 1
Explanation
The correct answer is < 1.
Correct answer
D. < 1
Explanation
The correct answer is < 1.
In flue gas analysis by Orsat’s apparatus, carbon monoxide is absorbed by________?
A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun’s equation for the above fluid-particle system (in SI units) is given below: Δ P/L = 375 × 103 VOM + 10.94 × 106 V2 OM (SI units) If water is to be used as the fluidising medium, in actual operation, the above bed has a height = 1 m. What is the porosity of the fluidised bed?
Teflon is________?
In case of end to end connection of two or more pipes in series, the ________ each pipe?
Thermit welding uses the following energy source?
A gas is termed as non-toxic, if its maximum permissible concentration (TLV) ranges from ________ ppm?