Which of the following is NOT true with reference to negative rake angle of a lathe cutting tool ?

11) A cutting tool used to finish and enlarge a hole is known as

Answer is:

Reamer

Explanation:

A reamer is a multi-point cutting tool used for enlarging by finishing previously drilled holes to accurate sizes.

12) Which one of the following metals does not require any coolant during reaming ?

Answer is:

Cast iron

Explanation:

Cast iron does not require any coolant during reaming because, graphite in the cast iron acts as a lubricant.

13) A cutting tool used to cut outside threads is called

Answer is:

Die

Explanation:

Threading dies are used to cut external threads on cylindrical work-pieces.

14) Which one of the following is used to rectify damaged or rusted threads ?

Answer is:

Die nut

Explanation:

The die nut is used for chasing or reconditioning the damaged threads.
Die nuts are not to be used for cutting new threads. The die nuts are available for different standards and sizes of threads. The die nut is turned with a spanner.

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Which of the following is NOT true with reference to negative rake angle of a lathe cutting tool ?

Reduces friction

For More Cutting Tools MCQ - Machinist(Set-1) with Answers

Related Cutting Tools MCQ - Machinist(Set-1) with Answers

11) A cutting tool used to finish and enlarge a hole is known as

Reamer

12) Which one of the following metals does not require any coolant during reaming ?

Cast iron

13) A cutting tool used to cut outside threads is called

Die

14) Which one of the following is used to rectify damaged or rusted threads ?

Die nut

For More Cutting Tools MCQ - Machinist(Set-1) with Answers