PMU Needle Configuration & Machines 2 — Questions and Answers
Question 1: Which needle gauge number indicates the THINNEST needle used in PMU work?
- #10 (0.30mm)
- #12 (0.35mm)
- #8 (0.25mm) (Correct answer)
- #14 (0.40mm)
Correct answer: #8 (0.25mm)
Lower gauge numbers correspond to thinner needle diameters; #8 (0.25mm) is thinner than the common #12 standard.
Question 2: A 'curved magnum' needle configuration is most advantageous for which PMU application?
- Precise hairstrokes on brows
- Soft shading and color packing on lips (Correct answer)
- Lash-line definition
- Microblading-style strokes
Correct answer: Soft shading and color packing on lips
The curved magnum's arched tip distributes pigment evenly across soft tissue, making it ideal for lip shading and blending.
Question 3: What does the 'RL' designation stand for in PMU needle nomenclature?
- Round Liner (Correct answer)
- Radial Layered
- Round Layered
- Rotary Line
Correct answer: Round Liner
RL stands for Round Liner, indicating needles soldered in a tight circular cluster used for precise linework.
Question 4: How does increasing the stroke length on a rotary PMU machine affect pigment implantation?
- Decreases needle penetration depth
- Allows deeper pigment placement with each pass (Correct answer)
- Reduces machine noise only
- Has no effect on implantation
Correct answer: Allows deeper pigment placement with each pass
A longer stroke length drives the needle deeper into the skin, enabling more substantial pigment deposit per pass.
Question 5: Which machine type is generally preferred by PMU artists for its quiet operation and reduced vibration?
- Coil machine
- Pneumatic machine
- Rotary pen-style machine (Correct answer)
- Thermal machine
Correct answer: Rotary pen-style machine
Rotary pen-style machines use a motor-driven cam mechanism that produces minimal vibration and noise compared to coil machines.
Question 6: A 3-point liner needle cluster is commonly written as:
- 3M
- 3RS
- 3RL (Correct answer)
- 3F
Correct answer: 3RL
3RL denotes a 3-needle Round Liner configuration; the number precedes the configuration code in standard notation.
Question 7: What is the primary risk of using too high a voltage setting on a rotary PMU machine?
- Pigment oxidation before implantation
- Excessive trauma and scarring to the skin (Correct answer)
- Needle sterilization failure
- Machine motor overheating only
Correct answer: Excessive trauma and scarring to the skin
Excessive voltage causes the needle to strike the skin too forcefully, increasing trauma, bleeding, and risk of scarring.
PMU Needle Configuration & Machines 2
Which needle gauge number indicates the THINNEST needle used in PMU work?