Computer Aided Manufacturing (3161917) MCQs

MCQs of NC/CNC Machine Tools

Showing 1 to 10 out of 80 Questions
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1.

In a DNC system

(a)

many machine tools can be controlled simultaneously
(b)

only a single machine tool can be controlled
(c)

NC machine cannot be controlled
(d)

none of the mentioned
Answer:

Option (a)

2.

Several machine tools can be controlled by a central computer in

(a)

NC
(b)

CNC
(c)

DNC
(d)

CCNC
Answer:

Option (c)

3.

DNC stands for

(a)

Direct Numerical Complain
(b)

Direct Numerical Control
(c)

Direct Note Control
(d)

Direct Note Complain
Answer:

Option (b)

4.

Numerical control ___________

(a)

applies only to milling machines
(b)

 is a method for producing exact number of parts per hour
(c)

is a method for controlling by means of set of instructions
(d)

none of the mentioned
Answer:

Option (c)

5.

NC contouring is an example of

(a)

continuous path positioning
(b)

point-to-point positioning
(c)

absolute positioning
(d)

incremental positioning
Answer:

Option (a)

6.

Full form of MCU is

(a)

Machine computer unit
(b)

Machine control unit
(c)

Machine control universal
(d)

Machine computer universal
Answer:

Option (b)

7.

Computer will perform the data processing functions in

(a)

VMC
(b)

CNC
(c)

DNC
(d)

all of the mentioned
Answer:

Option (d)

8.

In the CNC machine tool, the part program entered into the computer memory

(a)

can be used only once
(b)

can be used again and again
(c)

can be used again but it has to be modified every time
(d)

none of the mentioned
Answer:

Option (b)

9.

Which of the following is not the advantage of CNC machines?

(a)

Improved strength of the components
(b)

Reduced scrap rate
(c)

Higher flexibility
(d)

Improved quality
Answer:

Option (a)

10.

Part-programming mistakes can be avoided in

(a)

NC
(b)

CNC
(c)

both NC and CNC
(d)

none of the mentioned
Answer:

Option (c)

Showing 1 to 10 out of 80 Questions
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