Lathe Tools MCQ with Answers

Lathe Tools MCQ with Answers

26) A brass shaft is to be turned to a surface roughness Ra = 0.8, with high cutting speed. Which one of the following cutting tool material is most suitable ?

Answer is:

Cemented carbide

27) Which one of the following statements is true with reference to the tool life ?

Answer is:

Time between two successive regrinds

28) A carbide tipped tool with blue marking is used on a lathe. Which one of the following materials can be machined with this tool ?

Answer is:

Steel

29) Hand chasers are used for

Answer is:

rectifying threads cut on steel rods which are distorted

30) The included angle of the countersinking portion of a centre drill of type 'B' used for protecting the centre hole is

Answer is:

120 Degree