Advanced Machining Questions and Answers – CHM – Process Parameters and Material removal

This set of Advanced Machining Processes Multiple Choice Questions & Answers (MCQs) focuses on “CHM – Process Parameters and Material removal”.

1. Which of the following come under process parameters of Chemical milling?
a) Reagent type
b) Concentration
c) Operating temperature
d) All of the mentioned
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2. State whether the following statement is true or false about Chemical milling.
“Maskants, applied on work pieces, are not responsible for CHM process.”
a) True
b) False
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3. To machine high quality parts using CHM, which of the following need not be necessary?
a) Heat treatment of work piece
b) Grain size of work piece
c) Frequency of vibrations
d) Range of work pieces
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4. The process parameters will have direct impact on which of the following factors?
a) Etch factor
b) Machining rate
c) Production tolerance
d) All of the mentioned
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5. Thickness of the maskant coating ranges between which of the following values?
a) 0.0025 – 0.013 mm
b) 0.025 – 0.13 mm
c) 0.25 – 1.3 mm
d) 2.5 – 13 mm
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6. Which of the following, are the general materials used for maskant application?
a) Neoprene
b) Poly vinyl chloride
c) Polyethylene
d) All of the mentioned
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7. 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.”
a) True
b) False
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8. On which of the following factors, MRR will not be depend on?
a) Chemical uniformity
b) Metallurgical uniformity
c) Frequency uniformity
d) Temperature uniformity
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9. Castings having a larger grain size, will show how much surface roughness value?
a) Very low
b) Low
c) Medium
d) High
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10. Which of the following materials have the highest machining rate and best surface quality?
a) Rolled metal sheets
b) Thick metal plates
c) Polymeric plates
d) Plastic sheets
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11. For softer materials, which type of etching rates are obtained?
a) Very low
b) Low
c) Medium
d) High
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12. For harder materials, which of the following etching rates are obtained?
a) Very low
b) Low
c) Medium
d) High
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13. State whether the following statement is true or false about etching rates.
“As the etching rate increases, low surface roughness values occur.”
a) True
b) False
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Sanfoundry Global Education & Learning Series – Advanced Machining.

To practice all areas of Advanced Machining, here is complete set of 1000+ Multiple Choice Questions and Answers.