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MCQ - TNPSC JTO

JTO - 534 - Advanced Computer Numerical Control

534 - Unit III Product specification

129)   

Which of the following affects surface finish the most during machining?

A.
B.
C.
D.
130)   

Surface roughness values are generally measured using:

A.
B.
C.
D.
131)   

Which of the following best describes Ra (Roughness average)?

A.
B.
C.
D.
132)   

A poor surface finish on a sealing surface can cause:

A.
B.
C.
D.
133)   

Which machining process provides excellent control over surface finish in cylindrical parts?

A.
B.
C.
D.
134)   

In surface finish notation, the symbol used to indicate requirement of machining is:

A.
B.
C.
D.
135)   

Buffing and polishing are done primarily to:

A.
B.
C.
D.
136)   

The main goal of post-processing in CNC machined parts is to:

A.
B.
C.
D.
137)   

Which of the following post-processing techniques is used to improve fatigue strength?

A.
B.
C.
D.
138)   

A process that smoothens the surface using fine abrasives in a rotating motion is

A.
B.
C.
D.
139)   

In which of the following operations is zinc coated to protect the surface from corrosion?

A.
B.
C.
D.
140)   

Which heat treatment process is used to relieve internal stresses after welding?

A.
B.
C.
D.
141)   

Which operation improves dimensional tolerance in holes after drilling?

A.
B.
C.
D.
142)   

Which post-processing operation creates a mirror-like surface?

A.
B.
C.
D.
143)   

What is the main reason for using post-processing inspection operations?

A.
B.
C.
D.
144)   

In CNC machining, common post-process includes:

A.
B.
C.
D.