CNC Machine Modes Quiz for 6th Grade Students
Instructions: Read each question carefully and select the BEST answer.
1. What does MDI stand for in CNC machine operations?
A) Machine Direct Interface
B) Manual Data Input ✓
C) Mechanical Drive Integration
D) Machine Diagnostic Instructions
2. In MDI mode, what happens when an operator enters a command?
A) The command is saved for later use
B) The command is executed immediately after pressing cycle start ✓
C) The command requires supervisor approval
D) The command is automatically rejected
3. Which of the following is a typical use of MDI mode?
A) Creating complex long-term manufacturing programs
B) Printing 3D models
C) Testing spindle rotation and coolant functions ✓
D) Designing computer graphics
4. How does MDI mode help machine operators?
A) By allowing direct, line-by-line machine control ✓
B) By completely automating machine processes
C) By reducing machine maintenance
D) By eliminating the need for human interaction
5. When might a machinist prefer MDI mode?
A) During large-scale production runs
B) When setting up and testing machine functions ✓
C) When creating permanent design blueprints
D) When programming complex robotic systems
6. What makes MDI mode unique compared to other CNC modes?
A) It requires no human input
B) It allows immediate, step-by-step machine instructions ✓
C) It permanently stores all commands
D) It works only with specific machine brands
7. Which skill does using MDI mode help develop?
A) Computer programming
B) Artistic design
C) Precise machine control and technical understanding ✓
D) Electrical engineering
8. What type of commands can be entered in MDI mode?
A) Only mechanical commands
B) G-codes and M-codes ✓
C) Audio instructions
D) Visual programming languages
9. MDI mode is most similar to:
A) A pre-programmed robot sequence
B) Having a direct conversation with a machine ✓
C) Fully automated manufacturing
D) Remote machine control
10. Why might a student interested in engineering find MDI mode fascinating?
A) It allows direct interaction with machine technology ✓
B) It eliminates the need for human skills
C) It makes all machines identical
D) It reduces manufacturing complexity
Answer Key:
1. B
2. B
3. C
4. A
5. B
6. B
7. C
8. B
9. B
10. A
Scoring:
9-10 correct: Machine Control Expert!
7-8 correct: Technical Thinker
5-6 correct: Learning the Basics
0-4 correct: Keep Exploring Technology!
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