In Rockwell test for hardness on B scale
A) A diamond cone is used
B) A mechanite ball is used
C) A steel hammer is used
D) A steel ball is used
E) A plastic hammer is used
Correct Answer:
Verified
Q10: In a stationary type mechanical seal the
Q11: Gold ornaments are generally produced by
A)Pressed casting
B)Slush
Q12: In manufacturing ERW tube the type of
Q13: To clean a hand file
A)It is rubbed
Q14: During MIG welding the metal is transferred
Q16: For soldering of brass and copper, the
Q17: During metal cutting operation on machine tools,
Q18: The purpose of an automatic process control
Q19: Which of the following process has highest
Q20: Cold heading is a process of
A)Electro-machining process
B)Explosive
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