621. In ultrasonic machining the tool ..... at very high frequency with the help of ...... transducers.

1. 1. Vibrate, magnetostrictive.

   
   
   

   2. Vibrate

   
   
   

   3. magnetostrictive

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   Tool vibrates at very high frequency with the help of magnetostrictive transducer.

   Correct Option: A

   Tool vibrates at very high frequency with the help of magnetostrictive transducer.

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622. Complete the manual part program for drilling a hole located at point (20, 20) from the target point. The depth of the hole to be drilled is 15 mm FROM/TARG GOTO/20, 20, 0
     

1. 1. GODLTA/0, 0,-15 GODLTA/0, 0, 15 GOTO/SETPT
      

   
   
   

   2. GODLTA/0, 0, 15 GODLTA/0, 0, -15 GOTO/SETPT
      

   
   
   

   3. GOTO/SETPT GODLTA/0, 0, -15 GODLTA/0, 0, 15
      

   
   
   

   4. GOTO/SETPT GODLTA/0, 0, 15 GODLTA/0, 0, -15

   
   
   

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1. View Hint View Answer Discuss in Forum

   After executing drilling process through command (– 154 mm), drill bit were, return for O level and 90 to set point.
   

   Correct Option: A

   After executing drilling process through command (– 154 mm), drill bit were, return for O level and 90 to set point.
   

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623. Given that the notations of robot joints are Llinear, O-orthogonal, R-rotation, T-twisting, and V- revolving, the anatomy of a polar configuration robot is described by the alphabetical string
     

1. 1. TOO
      

   
   
   

   2. TLL
      

   
   
   

   3. TRL
      

   
   
   

   4. TVO

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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624. The component development and manufacturing activities when assisted by a computer area: computer aided graphics (CAG), CAD, CAM, CAPP and computer aided quality control (CAQC). The most appropriate sequence of these activities is
     

1. 1. CAD-CAG-CAPP-CAM-CAQC
      

   
   
   

   2. CAG-CAD-CAM-CAPP-CAQC
      

   
   
   

   3. CAD-CAG-CAPP-CAQC-CAM
      

   
   
   

   4. CAD-CAPP-CAG-CAM-CAQC

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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625. Use of robot for spray painting is primarily justified for improved.... A.... and reduced... B...
     

1. 1. (A) productivity , (B) consistency

   
   
   

   2. (A) consistency , (B) hazard

   
   
   

   3. (A) productivity , (B) cost

   
   
   

   4. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   (a) Consistency (b) Hazard
   use of robots improves consistency and reduce hazards for human life.

   Correct Option: B

   (a) Consistency (b) Hazard
   use of robots improves consistency and reduce hazards for human life.

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