V-Block MCQ

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

• Which of the following is incorrect about V blocks?
  ক

  Cylindrical piece should be placed on the vee sides

  খ

  Cylindrical piece should be placed on the edges of the vees

  গ

  V-Blocks generally sold in pairs

  ঘ

  V-blocks can support square, round and rectangular pieces
• Which of the following is correct for departure from flatness in Vees?
  ক

  Any departure from flatness in vees should be a concavity

  খ

  Any departure from flatness parallel to the vee axis should be a concavity

  গ

  Any departure from flatness parallel to the vee axis should be a convexity

  ঘ

  Any departure from flatness in vees can be a concavity or convexity
• Which of the following option is correct for the given statements related to V-blocks? (T=True/ F=False) Statement 1: V-blocks can be used as a magnetic work holding device. Statement 2: V-blocks with internal magnets help in milling operation.
  ক

  T, T

  খ

  T, F

  গ

  F, T

  ঘ

  F, F
• Which of the following option is correct for the given statements about working surface of V blocks? Statement 1: V-Blocks have only one working surface i.e. flanks of vees. Statement 2: Side faces of V-blocks are not working surfaces.
  ক

  Both statements are true

  খ

  Statement 1 is correct

  গ

  Statement 2 is correct

  ঘ

  Both statements are false
• Which of the following grades is specified by IS: 2494-1964?
  ক

  Two grades of vee Blocks, viz. Grade A and B

  খ

  Four grades of vee Blocks, viz. Grade A, B, C and D

  গ

  Two grades of vee Blocks, viz. Grade 1 and 2

  ঘ

  Four grades of vee Blocks, viz. Grade 1, 2, 3 and 4
• Which V block is used for checking triangle effect?
  ক

  V block with 120-degree angle is used

  খ

  V block with 90-degree angle is used

  গ

  V block with 60-degree angle is used

  ঘ

  V block with 30-degree angle is used
• Which of the following is incorrect about V-Blocks?
  ক

  V-Blocks should be checked periodically for accuracy

  খ

  V-Blocks are used to establish centre axis of a cylindrical piece precisely

  গ

  First check the V-Blocks visually before using

  ঘ

  V-Blocks cannot be used with clamps
• What is the symmetrization accuracy of vees in V-Blocks?
  ক

  0.002 mm per 20 mm length

  খ

  0.001 mm per 20 mm length

  গ

  No effect of symmetry

  ঘ

  0.02 mm per 20 mm length
• What is the bearing area of V-Blocks?
  ক

  5%

  খ

  10%

  গ

  15%

  ঘ

  20%
• What is the use of V-Blocks?
  ক

  For checking only squareness of square work pieces

  খ

  For checking roundness

  গ

  Only for the support purposes

  ঘ

  To support triangular surfaces only