Practice Test: Question Set - 02
1. Which code is used for peck drilling in FANUC controller system?
- (A) G80
- (B) G76
- (C) G72
- (D) G74
2. Which is the programme for simple turning operation for the length of -30 mm?
- (A) N008 G01 Y-2.5
- (B) N011 G00 X020
- (C) N009 G01 Z-30
- (D) N010 G01 X5
Z-30
3. Which is general safety in CNC turning?
- (A) Do not use
non standard tools / holders
- (B) Check the
voltage and current
- (C) Check the
chuck function
- (D) Check the
programme control levels
4. Which type of chuck is used in a CNC lathe?
- (A) Two jaw
chuck
- (B) Three jaw
chuck
- (C) Hydraulic
chuck
- (D) Four Jaw
chuck
5. What ‘N’ of ISO insert tool specifies?
- (A) Shape
- (B) Grade
- (C) Material
- (D) Relief angle
6. When the machine moves 25.49 mm for the command X = 25.50 mm, what must be the positional accuracy?
- (A) 0.001 mm
- (B) 0.01 mm
- (C) 0.1 mm
- (D) 1 mm
7. What is the role of G-wards in part programming function?
- (A) Preparatory
function
- (B) Sequence of
operation by the tool
- (C) Indicate
position of tool motion
- (D) Specify the
cutting speed process
8. What is the feed of CNC machine XYZ axis?
- (A) 1 to 2
mm/min
- (B) 5 to 50
mm/min
- (C) 1 to 1000
mm/min
- (D) 1 to 100
mm/min
9. What is the first step to stop CNC machine of an accident happen while working?
- (A) Switch off
regulator
- (B) Press
emergency switch
- (C) Reset
machine
- (D) Reset
regulator
10. What is M8 represent in programs off CPU tapping?
- (A) Coolant off
- (B) Coolant on
- (C) Specific
direction
- (D) Tapping RH
threads
11. What is the control system of the CNC machine?
- (A) Straight cut
control
- (B) 2-D
Contouring control
- (C) 3-D
Contouring control
- (D) 2.5 D
Contouring control
12. What is the code M11 defined by the machine tool?
- (A) Coolant OFF
- (B) Coolant ON
- (C) Chuck close
- (D) Door close
13. Which motor control the axes of CNC machine?
- (A) Air motor
- (B) DC series
motor
- (C) Servo motor
- (D) Hydraulic
motor
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