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State whether the following statement is true or false about applications of PCM. “Using PCM, very high tempered materials are machined easily.”
Which of the following are the components that can be machined using PCM?
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.”
Consider the following statements: 1. Both ferromagnetic and ferrimagnetic materials have domain structures; each domain has randomly oriented magnetic moments when no external field is applied. 2. Both ferromagnetic and ferrimagnetic materials make those domains that have a favourable orientation to the applied field grow in size. 3. The net magnetic moment in ferromagnetic materials is higher than that in ferrimagnetic materials. 4. The net magnetic moment in ferrimagnetic materials is higher than that in ferromagnetic material. Which of the above statements are correct?
How much amount of burr is produced, when components are machined using PCM?
What is the term for composite materials formed by suspending nonmetallic particles in a metal matrix?
The composite materials resulting from the suspension of nonmetallic particles in metal matrix is called as _________
_____________ is a large class of inorganic nonmetallic materials.
Which of the following statements are true in the case of Pulse Code Modulation (PCM)? a) If the number of bits per sample is increased from n to n + 1; the S/Nq the ratio would be 6 dB b) The quantization noise depends on the sampling rate c) The main advantage of PCM is that it possesses better performance in the presence of noise d) If the number of quantization levels increases from 4 to 64, the bandwidth increase by a factor of 4
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.”