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11) In water jet cutting and abrasive water jet cutting, the separation between the nozzle opening and the work F) Non called which one of the following: (A) gap. (B) gap size. (C) orifice, (D) overcut, or (E) standoff distance of the previous. 12) In Electron beam machining, as the electrons strikes the work piece: - A) Electro-chemical etching takes place B) They get scattered. C) Mechanical erosion in work piece takes place. D) Their kinetic energy is converted 13) In chemical machining, a layer of maskant is used on the work part Inorder to: electricity. B) protect the work part from reagent. E) making the work part to be an anode. F) making the work part to be a cathode. A) protect the work part from C) make a hole on the work part. D) make a chemical reaction with water. 14) In electrochemical machining the plotras remount from

11) In water jet cutting and abrasive water jet cutting, the separation between the nozzle opening and the work F) Non called which one of the following: (A) gap. (B) gap size. (C) orifice, (D) overcut, or (E) standoff distance of the previous. 12) In Electron beam machining, as the electrons strikes the work piece: - A) Electro-chemical etching takes place B) They get scattered. C) Mechanical erosion in work piece takes place. D) Their kinetic energy is converted 13) In chemical machining, a layer of maskant is used on the work part Inorder to: electricity. B) protect the work part from reagent. E) making the work part to be an anode. F) making the work part to be a cathode. A) protect the work part from C) make a hole on the work part. D) make a chemical reaction with water. 14) In electrochemical machining the plotras remount from

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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11) In water jet cutting and abrasive water iet cutting, the separation between the nozzle opening and the work surtace is called which one of the following: (A) gap, (B) gap size. (C) orifice, (D) overcut, or (E) standoff distance. F) None of the previous. 12)in Eloctron beam machining, as the electrons strikes the work piece: - A) Electro-chemical etching takes place. B) They get scattered. C) Mechanical erosion in work piece takes place. D) Their kinetic energy is converted into heat. 13)In chemical machining, a layer of maskant is used on the work part Inorder to: electricity. B) protect the work part from reagent. C) make a hole on the work part. D) make a chemical A) protect the work part from reaction with water. E) making the work part to be an anode. F) making the work part to be a cathode. 14) In electrochemical machining. the electrode is fed into the work at e rate - the rate of metal removal from the work. A) Higher than. previous. 15) In Ultrasonic Machining, the tool oscillation angle in the work piece is: A) Zero". B) 45°. E) None. 16)Which of the following processes use mechanical energy as the principal energy source: (A) chemical machining. (B) EDM. (C) laser beam machining. (F) wire EDM E) None of the B) Lower than. C) Equal to. D) No electrode is used. C) 90° D) 180°. D) water jet cutting. E) electron beam machining I) none of the previous answers. 17) Which one of the following is closest to the temperatures used in plasma arc cutting: A) 2750 °C. B) 5500 °C G) Plasma arc cutting. H) Electron beam machining. C) 8300 °C D) 11,000 °C E) 19,000 °C. F) room temperature.
Transcribed Image Text:11) In water jet cutting and abrasive water iet cutting, the separation between the nozzle opening and the work surtace is called which one of the following: (A) gap, (B) gap size. (C) orifice, (D) overcut, or (E) standoff distance. F) None of the previous. 12)in Eloctron beam machining, as the electrons strikes the work piece: - A) Electro-chemical etching takes place. B) They get scattered. C) Mechanical erosion in work piece takes place. D) Their kinetic energy is converted into heat. 13)In chemical machining, a layer of maskant is used on the work part Inorder to: electricity. B) protect the work part from reagent. C) make a hole on the work part. D) make a chemical A) protect the work part from reaction with water. E) making the work part to be an anode. F) making the work part to be a cathode. 14) In electrochemical machining. the electrode is fed into the work at e rate - the rate of metal removal from the work. A) Higher than. previous. 15) In Ultrasonic Machining, the tool oscillation angle in the work piece is: A) Zero". B) 45°. E) None. 16)Which of the following processes use mechanical energy as the principal energy source: (A) chemical machining. (B) EDM. (C) laser beam machining. (F) wire EDM E) None of the B) Lower than. C) Equal to. D) No electrode is used. C) 90° D) 180°. D) water jet cutting. E) electron beam machining I) none of the previous answers. 17) Which one of the following is closest to the temperatures used in plasma arc cutting: A) 2750 °C. B) 5500 °C G) Plasma arc cutting. H) Electron beam machining. C) 8300 °C D) 11,000 °C E) 19,000 °C. F) room temperature.
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