Laser Cutting Technician Certification Exam
Questions and Correct Answers Verified
Answers) Plus Rationales 2026 Q&A | Instant
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1. What is the primary function of a laser cutting machine?
A. To weld metals together
B. To remove material using a focused laser beam
C. To polish metal surfaces
D. To drill mechanical holes manually
Answer: B
Rationale: Laser cutting uses a focused beam of light to melt, burn, or
vaporize material with high precision.
2. Which gas is commonly used as an assist gas in laser cutting mild
steel?
A. Argon
B. Oxygen
,C. Helium
D. Nitrogen
Answer: B
Rationale: Oxygen supports combustion, increasing cutting speed for
mild steel.
3. What does CNC stand for in laser cutting systems?
A. Computer Numerical Control
B. Central Network Command
C. Controlled Network Calibration
D. Computerized Numeric Cutting
Answer: A
Rationale: CNC refers to automated machine control using programmed
instructions.
4. Which laser type is most commonly used in industrial metal
cutting?
A. CO₂ laser
B. UV laser
,C. X-ray laser
D. Microwave laser
Answer: A
Rationale: CO₂ lasers are widely used for cutting non-metal and some
metal materials.
5. What is kerf in laser cutting?
A. The laser power setting
B. The width of material removed during cutting
C. The speed of the laser head
D. The cooling gas flow rate
Answer: B
Rationale: Kerf is the material width removed by the laser beam.
6. Which parameter directly affects cutting speed?
A. Machine color
B. Laser power
C. Operator height
D. Table size
, Answer: B
Rationale: Higher laser power generally increases cutting speed.
7. What is the main purpose of assist gas?
A. To cool the operator
B. To increase beam wavelength
C. To remove molten material and improve cut quality
D. To lubricate moving parts
Answer: C
Rationale: Assist gas helps eject molten material and improves edge
quality.
8. Which material is easiest to cut with a CO₂ laser?
A. Thick stainless steel
B. Wood
C. Concrete
D. Titanium
Answer: B
Rationale: CO₂ lasers are highly effective on organic materials like
wood.
Questions and Correct Answers Verified
Answers) Plus Rationales 2026 Q&A | Instant
Download Pdf
1. What is the primary function of a laser cutting machine?
A. To weld metals together
B. To remove material using a focused laser beam
C. To polish metal surfaces
D. To drill mechanical holes manually
Answer: B
Rationale: Laser cutting uses a focused beam of light to melt, burn, or
vaporize material with high precision.
2. Which gas is commonly used as an assist gas in laser cutting mild
steel?
A. Argon
B. Oxygen
,C. Helium
D. Nitrogen
Answer: B
Rationale: Oxygen supports combustion, increasing cutting speed for
mild steel.
3. What does CNC stand for in laser cutting systems?
A. Computer Numerical Control
B. Central Network Command
C. Controlled Network Calibration
D. Computerized Numeric Cutting
Answer: A
Rationale: CNC refers to automated machine control using programmed
instructions.
4. Which laser type is most commonly used in industrial metal
cutting?
A. CO₂ laser
B. UV laser
,C. X-ray laser
D. Microwave laser
Answer: A
Rationale: CO₂ lasers are widely used for cutting non-metal and some
metal materials.
5. What is kerf in laser cutting?
A. The laser power setting
B. The width of material removed during cutting
C. The speed of the laser head
D. The cooling gas flow rate
Answer: B
Rationale: Kerf is the material width removed by the laser beam.
6. Which parameter directly affects cutting speed?
A. Machine color
B. Laser power
C. Operator height
D. Table size
, Answer: B
Rationale: Higher laser power generally increases cutting speed.
7. What is the main purpose of assist gas?
A. To cool the operator
B. To increase beam wavelength
C. To remove molten material and improve cut quality
D. To lubricate moving parts
Answer: C
Rationale: Assist gas helps eject molten material and improves edge
quality.
8. Which material is easiest to cut with a CO₂ laser?
A. Thick stainless steel
B. Wood
C. Concrete
D. Titanium
Answer: B
Rationale: CO₂ lasers are highly effective on organic materials like
wood.
