CNC Machining Safety and Technology Quiz for 6th Grade
Instructions: Read each question carefully and select the BEST answer.
1. What does CNC stand for?
A) Computer Numerical Control
B) Carefully Navigated Cutting
C) Computerized Mechanical Crafting
D) Controlled Numerical Creation
2. Which of these is the MOST important safety concern when working near a CNC machine?
A) Loud noises
B) Potential entanglement with moving parts
C) Wearing comfortable shoes
D) Keeping the floor clean
3. In CNC technology, what does G-code primarily do?
A) Control machine color
B) Determine machine speed
C) Direct machine movements and tool paths
D) Manage machine maintenance schedules
4. Why should someone NOT wear loose clothing near a CNC machine?
A) It might get dirty
B) It could get caught in moving parts
C) It looks unprofessional
D) It might interfere with computer signals
5. What makes CNC machines more precise than conventional milling machines?
A) They are more expensive
B) They use computer feedback systems
C) They are larger
D) They have more buttons
6. Which safety equipment is MOST critical when operating a CNC machine?
A) Comfortable shoes
B) A baseball cap
C) Safety glasses/face shield
D) Gloves
7. What is the primary advantage of CNC machines in manufacturing?
A) They are cheaper
B) They produce more consistent parts
C) They are smaller
D) They require more human intervention
8. What does a CNC machine's "closed-loop control system" help achieve?
A) Better machine color
B) Faster machine speed
C) More precise movements and adjustments
D) Louder machine sounds
9. Why are emergency stop (E-Stop) buttons important in CNC machines?
A) They make the machine look fancy
B) They can immediately halt all machine operations
C) They control machine color
D) They adjust machine temperature
10. Which statement best describes the difference between CNC and conventional milling machines?
A) CNC machines are always smaller
B) Conventional machines are more precise
C) CNC machines offer more automation and precision
D) Conventional machines are faster
ANSWER KEY:
1. A
2. B
3. C
4. B
5. B
6. C
7. B
8. C
9. B
10. C
Scoring:
9-10 correct: Machine Master!
7-8 correct: Tech Wizard
5-6 correct: Learning the Ropes
0-4 correct: Keep Exploring!
CNC Theory & MCQ English Book
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