CNC - CHAPTER 1

Name of Trainee

The full form of CNC is

• Constant Numerical Control
• Computerised Numerical Control
• Correct Numerical Control
• Collective Numerical Control

CNC manufacturing system of higher production at lower

• investment
• man power
• cost
• accuracy

When computer is used to control a NC machine then it is called

• DNC
• VMC
• HMC
• CNC

The heart of the CNC machine is

• CPU
• MCU
• PCU
• MCV

The diametrical axis of cnc lathe is

• Y
• Z
• X
• B

In 3 axes CNC milling the spindle axis is

• X
• Y
• B
• Z

Programe is controlled with a separate dedicated computer in

• CNC
• NC
• DNC
• HMC

There are mainly ------ parts in CNC m/c

• 4
• 3
• 5
• 2

Input device which are used

• Code
• Part Programe
• Feed
• Correction