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MCQ - Mechanical TNPSC JTO
JTO - 534 - Advanced Computer Numerical Control - 534 - Unit III Product specification

126)   

Which of the following methods is primarily used to improve surface finish?

A.
B.
C.
D.
Answer: C
127)   

Good surface finish increases fatigue resistance because:

A.
B.
C.
D.
Answer: B
128)   

Surface finish is least important in which of the following parts?

A.
B.
C.
D.
Answer: C
129)   

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

A.
B.
C.
D.
Answer: C
130)   

Surface roughness values are generally measured using:

A.
B.
C.
D.
Answer: D
131)   

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

A.
B.
C.
D.
Answer: A
132)   

A poor surface finish on a sealing surface can cause:

A.
B.
C.
D.
Answer: B
133)   

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

A.
B.
C.
D.
Answer: C
134)   

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

A.
B.
C.
D.
Answer: D
135)   

Buffing and polishing are done primarily to:

A.
B.
C.
D.
Answer: C
136)   

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

A.
B.
C.
D.
Answer: C
137)   

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

A.
B.
C.
D.
Answer: B
138)   

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

A.
B.
C.
D.
Answer: B
139)   

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

A.
B.
C.
D.
Answer: B
140)   

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

A.
B.
C.
D.
Answer: C
141)   

Which operation improves dimensional tolerance in holes after drilling?

A.
B.
C.
D.
Answer: D
142)   

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

A.
B.
C.
D.
Answer: C
143)   

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

A.
B.
C.
D.
Answer: B
144)   

In CNC machining, common post-process includes:

A.
B.
C.
D.
Answer: C
145)   

Which post-process operation improves the wear resistance of a surface by diffusing carbon or nitrogen?

A.
B.
C.
D.
Answer: C
146)   

Which of the following elements is not included in a basic PFD?

A.
B.
C.
D.
Answer: C
147)   

In a PFD, tanks are generally represented by:

A.
B.
C.
D.
Answer: C
148)   

PFDs are especially useful for which type of industries?

A.
B.
C.
D.
Answer: B
149)   

Total reading of Vernier Caliper =

A.
B.
C.
D.
Answer: B
150)   

The primary goal of product design is to:

A.
B.
C.
D.
Answer: B