Question: With an increase in unmanned machining hours, what happens to the efficiency of ECM? A. increases B. reduces C. decreases D. increase and then decrease Answer» a. increases Note: The above multiple-choice question is for all general and Competitive…
Question: Which of the following use ECM for different applications? A. gas turbines B. jet engines C. bio medical implants D. all of the mentioned Answer» d. all of the mentioned Note: The above multiple-choice question is for all general…
Question: Which type of gap width is necessary for a higher degree of accuracy? A. very small B. small C. medium D. high Answer» b. small Note: The above multiple-choice question is for all general and Competitive Exams in India.
Question: For a better surface finish, which type of current distribution is required? A. even B. uneven C. even & uneven D. none of the mentioned Answer» a. even Note: The above multiple-choice question is for all general and Competitive…
Question: If the gap thickness is greater than equilibrium thickness what will be MRR? A. mrr is less than feed rate B. mrr is greater than feed rate C. mrr is equal to feed rate D. none of the mentioned…
Question: Better surface finish and higher accuracy depend on which of the factors below? A. chemical composition of the electrolyte B. current density C. all of the mentioned D. none of the mentioned Answer» c. all of the mentioned Note:…
Question: Which of the following processes can be done using ECM? A. die sinking B. profiling and contouring C. drilling and trepanning D. all of the mentioned Answer» d. all of the mentioned Note: The above multiple-choice question is for…
Question: What must be the working voltage in Electrochemical machining? A. 10 v B. 20 v C. 30 v D. 40 v Answer» b. 20 v Note: The above multiple-choice question is for all general and Competitive Exams in India.
Question: In ECM, gap increase proportional to which relation of time below? A. square of time B. square root of time C. cube of time D. cube root of time Answer» b. square root of time Note: The above multiple-choice…
Question: What must be the value of velocity of the electrolytic solution? A. 10 to 15 m/s B. 25 to 50 m/s C. 60 to 100 m/s d) 120 to 200 m/s Answer» b. 25 to 50 m/s Note: The…