In Rockwell test for hardness on B scale

Production Engineering Mcqs
BILAL KHATTAK0

A.A steel ball is used
B.A diamond cone is used
C.A steel hammer is used
D.A plastic hammer is used
E.A mechanite ball is used

Related Mcqs:

  1. In case of very hard surfaces the Brinell Hardness test method fails to give reliable results because
  2. Endentor used in Vickers hardness testing machine is
  3. In Rockwell hardness test the hardness is measured by
  4. On Moh’s scale, materials with hardness number less than 4 are
  5. In a Brinell hardness test the hardness number is determined by the measurement of
  6. In a venturimeter
  7. In Brinell hardness testing, while determining hardness of aluminium
  8. Killed’ steel is
  9. Which material has the best damping capacity
  10. In a machining operation on free cutting mild steel the cutting speed is mentioned as 70 m/min. What should be material of cutting tool

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