State whether the following statement is true or false regarding PCM. “In PCM, etching depth does not depend on the time, a component is immersed in the chemical solution.”

State whether the following statement is true or false regarding PCM. “In PCM, etching depth does not depend on the time, a component is immersed in the chemical solution.” Correct Answer False

As in case of CHM, depth of etch in PCM depend upon the time of part immersed in chemical solution.
Bissoy MCQ

Related Questions

The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where IG = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface, and x = Depth of centre of gravity of the immersed surface from the liquid surface)
The depth of centre of pressure (h) for a vertically immersed surface from the liquid surface is given by (where $${I_{\text{G}}}$$ = Moment of inertia of the immersed surface about horizontal axis through its centre of gravity, A = Area of immersed surface and x = Depth of centre of gravity of the immersed surface from the liquid surface)
A 60% spirit solution is mixed with r% spirit solution in the ratio 1 : 3 such that a s% spirit solution is obtained. When a (s/3)% spirit solution is mixed with 55% spirit solution in equal ratio, an (r/2)% spirit solution is obtained. Which of the following can be determined? (A) Value of ‘r’ (B) Value of ‘s’ (C) Volume of the 60% spirit solution mixed initially (D) If 9 liters of r% spirit solution was mixed initially, what was the volume of the s% spirit solution thus obtained?
A chemical solution appears green when the salt concentration is 8 grams per litre (gpl) and red when it is 10 gpl. Pure water was added to the solution of 1 litre of 15 gpl solution till it turned green. Then 125 ml of the green solution is taken out and x grams of salt is added to the green solution to make it red. Another 500 ml of the final solution was taken out and y litres of green solution is added to get a resultant solution of concentration 9.6 gpl.  Assume adding salt doesn’t change its volume and find the ratio of x and y. 
State whether the following statement is true or false regarding advantages of PCM. “In PCM, lead times are large, when compared to that required for hard tooling using traditional means.”
State whether the following statement is true or false about etching rates. “As the etching rate increases, low surface roughness values occur.”
State whether the following statement about Chemical milling is true or false. “At higher temperatures, faster etching rates occur in Chemical milling.”
State which of the following statement is true or false regarding Chemical milling. “Maskants are generally used in CHM, to protect the work piece from the etching chemical agent.”
State whether the following statement is true or false about applications of PCM. “Using PCM, very high tempered materials are machined easily.”
State whether the following statement is true or false regarding MRR. “The rate of material removal, does not depend on uniformity of the solution temperature.”