VMC Machine tooling and Part programming Operations and uses MCQ - Set 02 - ObjectiveBooks

VMC Machine tooling and Part programming Operations and uses MCQ - Set 02

Practice Test: Question Set - 02


1. Which mode is used to copy the part program in VMC?
    (A) MDI
    (B) JOG
    (C) AUTO
    (D) Edit

2. Which knob is used to stop the machine suddenly?
    (A) Feed rate over ride
    (B) Spindle stop
    (C) Cycle stop
    (D) Emergency stop

3. What is ‘G’ code for peck drilling?
    (A) G86
    (B) G82
    (C) G83
    (D) G84

4. What is ‘N’ in the part program?
    (A) Program number
    (B) Block number
    (C) Tool offset number
    (D) Work offset number

5. What is ‘G04’ command?
    (A) Dwell time
    (B) Rapid motion
    (C) Linear motion
    (D) Canned cycle cancel

6. How tool life is expressed?
    (A) Minutes
    (B) Seconds
    (C) Hours
    (D) Days

7. Which ‘M’ code is used to stop in between different operations?
    (A) M01
    (B) M00
    (C) M30
    (D) M20

8. What is'M04 S500' in CNC program?
    (A) Spindle rotation CW 500 rpm
    (B) Spindle rotation CCW 500 rpm
    (C) Spindle stop
    (D) Spindle orientation

9. What is the code for 'absolute programming?
    (A) G91
    (B) G28
    (C) G90
    (D) G00

10. What is ‘G’ code for incremental system?
    (A) G91
    (B) G00
    (C) G01
    (D) G90

11. What is ‘G’ in program?
    (A) Sub-routine
    (B) Preparatory function
    (C) Sub-program
    (D) Miscellaneous function

12. What is unit of feed in VMC?
    (A) mm/min
    (B) mm/rev
    (C) mm/sec
    (D) metre/min

13. Which axis do homing first in VMC?
    (A) X - axis
    (B) Z - axis
    (C) Y - axis
    (D) B - axis

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