Correct answer
B. Need not be lined
Explanation
The correct answer is Need not be lined.
Catalyst used in Haber’s process for ammonia production is________?
Ion exchange process is similar to________?
Corrosion in boilers can be prevented by ________?
________ circuit is most commonly used to measure strain with the help of a strain gauge?
Smaller sized packings are generally dumped to the packed columns, and the large ones of size greater than ________ mm are stacked individually, which provides better control over bed porosity and offers lower gas pressure drop?
Most important factor to be considered in the selection of packings for absorbers is the ________ of packing?