96. During the execution of a CNC part program block
    NO20 GO2 X45.0 Y25.0 R5.0
    the type of tool motion will be

1. 1. circular Interpolation - clockwise

   
   
   

   2. circular Interpolation - counterclockwise

   
   
   

   3. linear Interpolation

   
   
   

   4. rapid feed

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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97. Appropriate instrument to check the flatness of slip gauge is
    

1. 1. dial indicator

   
   
   

   2. pneumatic comparator

   
   
   

   3. optical interferometer

   
   
   

   4. tool makers microscope with projection facility

   
   
   

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   NA

   Correct Option: C

   NA

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98. In an interchangeable assembly,a shaft of 20^+0.015-0.05 mm diameter and a hole of ^+0.025-0.010 mm diameter form a mating pair. In the worst assembly conditions, clearance between them will be

1. 1. 40 microns

   
   
   

   2. 30 microns

   
   
   

   3. 25 microns

   
   
   

   4. 15 microns

   
   
   

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1. View Hint View Answer Discuss in Forum

   In worst assembly condition, clearance will maximum
   Clearance (max) = Max hole dia – Minimum shaft diameter
   = 20.025 – 19.995 = 0.030 = 30 microns

   Correct Option: B

   In worst assembly condition, clearance will maximum
   Clearance (max) = Max hole dia – Minimum shaft diameter
   = 20.025 – 19.995 = 0.030 = 30 microns

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99. Diamond wheels should not be used for grinding steel components (T/F)

1. 1. True

   
   
   

   2. False

   
   
   

   3. NA

   
   
   

   4. NA

   
   
   

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   True yes because carbon and steel having higher affinity to carbon (diamond) can diffuse in to the steel

   Correct Option: A

   True yes because carbon and steel having higher affinity to carbon (diamond) can diffuse in to the steel

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100. Plain milling of mild steel plates produces

1. 1. irregular shaped discontinuous chips

   
   
   

   2. regular shaped discontinuous chips

   
   
   

   3. continuous chips without BUE

   
   
   

   4. jointed chips

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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