CNC Machines MCQ’s

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This set of Mechatronics Multiple Choice Questions & Answers (MCQs) focuses on “CNC Machines”.

1. What does CNC machine use to control motion and speed?
a) Numerical
b) Programs, as well as computer keyboard, Graphical user interface
c) Feedback system
d) GUI

2. The function of the feedback system is to record the data from the sensor and compare it with output data.
a) True
b) False

3. What is the full form of CNC?
a) Computer numerical control
b) Computer number control
c) Computer network control
d) Computer numbers count

4. What is the function of the GUI(Graphical user interface)?
a) To control motion and speed
b) Converts program into the action of the driver
c) To record the data from the sensor
d) To understand the position of the tool according to the input program

5. Machine control unit implements interpolation commands to generate axial motion commands.
a) True
b) False

6. Sensors used in measurement systems are ____
a) speed and position sensor
b) consist of amplifier circuits, driving motors and ball lead screw
c) numerical control sensors
d) measurement sensors

7. The punch tape reader in a CNC machine is ____
a) feedback system
b) input device
c) program
d) driving system

8. What is the function of the driving system in CNC?
a) Auxiliary control functions such as coolant
b) Speed and position control
c) Consist of amplifier circuits, driving motors and ball lead screw
d) To understand the position of the tool according to the input program

9. Speed and Position in CNC can be controlled using _____
a) slide table and spindle
b) machine code unit
c) feedback system
d) graphic user interface

10. In the block diagram of the CNC machine, data processing and control loop are a part of ____
a) speed and position sensor
b) feedback system
c) machine control unit
d) input device

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