Manufacturing Technology MCQ with Answers

121) Tail stock centres which do not revolve with the workpiece are known as

Answer is:

Dead centres

Explanation:

Revolving Centres are Frictionless. Used for supporting heavy jobs and jobs revolving with high speeds. A high-speed steel inserted centre is supported by two bearings housed in a body. It is also called the revolving dead centre.

Tail stock centres which do not revolve with the workpiece are known as

122) Hand tapping is an operation for generation of internal threads. The number of taps generally used for hand tapping are

Answer is:

3

123) Too low feed rate in a milling operation would

Answer is:

Cause the cutter to rub and scrap the surface of the work

124) Feed rate in milling machine is equal to

Answer is:

RPM X Feed per tooth X No. of Teeth

125) Light duty face mills are used in finishing operations, and compared to heavy duty face mills, these have

Answer is:

121) Tail stock centres which do not revolve with the workpiece are known as

Dead centres

122) Hand tapping is an operation for generation of internal threads. The number of taps generally used for hand tapping are

3

123) Too low feed rate in a milling operation would

Cause the cutter to rub and scrap the surface of the work

124) Feed rate in milling machine is equal to

RPM X Feed per tooth X No. of Teeth

125) Light duty face mills are used in finishing operations, and compared to heavy duty face mills, these have

Less Number of teeth