Drilling MCQ

Test your knowledge with important Drilling MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Drilling MCQs at Bissoy

• If 20mm hole is needed to be drilled using a drill having point angle of 15 degrees. Value of compulsory approach in mm is
  ক

  37.2

  খ

  45.3

  গ

  75.95

  ঘ

  13.3
• If 20mm hole is needed to be drilled using a drill having semi point angle of 15 degrees. Value of compulsory approach in mm is
  ক

  37.2

  খ

  45.3

  গ

  87.1

  ঘ

  13.3
• If ‘D’ is hole diameter, then general value for a compulsory approach for blind hole can be taken as
  ক

  0.3*D

  খ

  0.1*D

  গ

  0.5*D

  ঘ

  0.8*D
• If ‘D’ is hole diameter, then general value for a compulsory approach for through hole can be taken as
  ক

  0.3*D

  খ

  0.1*D

  গ

  0.5*D

  ঘ

  0.8*D
• Operation used to form internal threads is known as
  ক

  Drilling

  খ

  Reaming

  গ

  Boring

  ঘ

  Tapping
• Operation of enlarging the end of the hole to give conical shape at end is known as
  ক

  Drilling

  খ

  Reaming

  গ

  Boring

  ঘ

  Counter sinking
• Process of enlarging only a small part of hole is also known as
  ক

  Drilling

  খ

  Reaming

  গ

  Boring

  ঘ

  Counter boring
• Process of enlarging the hole size and enhancing its surface finish is known as
  ক

  Drilling

  খ

  Reaming

  গ

  Boring

  ঘ

  Counter boring
• Operation of finishing previously drilled hole in order to bring it to accurate size and have good surface finish is known as
  ক

  Drilling

  খ

  Reaming

  গ

  Boring

  ঘ

  Counter boring
• Producing circular hole in a solid metal by means of revolving tool is known as
  ক

  Drilling

  খ

  Reaming

  গ

  Boring

  ঘ

  Counter boring