Free CNC Machine MCQ Question and Answers

Question 1

The tool is moved with the GOO command at

Accepted Answer

Rapid traverse without machining

Answer

Feed rate while machining

Answer

Rapid traverse while machining

Answer

Feed rate without machining

Question 2

The most widespread use of a CNC machine is in the field of

Accepted Answer

small lot and batch production

Answer

non conventional machining

Answer

mask production

Answer

none of the above

Question 3

CNC machines cannot be used in

Accepted Answer

none of the above

Answer

Lathe

Answer

Drilling machine

Answer

Milling machine

Question 4

In spindle motors for CNC machine tools, the is constant.

Accepted Answer

Power

Answer

Current

Answer

Torque

Answer

Speed

Question 5

An automated CNC mailer would have

Accepted Answer

Countering control

Answer

Point-to-point closed loop control only

Answer

Point-to-point open loop control only

Answer

none of the above

Question 6

The main benefit of CNC machining over traditional machining is as follows:

Accepted Answer

flexibility

Answer

feedback control

Answer

ability to employ hugher cutting speeds, feeds and depth of cut

Answer

none of the above

Question 7

In the event that a machine has CNC control,

Accepted Answer

Control is achieved by employment of alphanumeric data

Answer

The loading and unloading of the work piece ON and OFF the machine respectively is made automatic

Answer

The dimension of the work piece are measured by sensors while cutting is going on

Answer

The tool motion is guided by drum cams and disc cams