Nail Technology Program

Chapter 8: Electric Filing

Machine Components, Bits, Grits & Safety | 37 Questions | Board Exam Prep

Student Name

Date

Instructor

Score

Vocabulary Matching

Match each numbered term with the correct lettered definition. Write the letter in the blank.

Terms

1.Mandrel

2.Carbide bit

3.Diamond bit

4.Sanding band

5.Handpiece

6.RPM

7.Concentric

8.Grit

9.Barrel bit

10.Forward / Reverse

Definitions

A.A metal shaft used to hold sanding bands on an electric file

B.Revolutions per minute; the speed measurement for an electric file

C.A disposable abrasive sleeve that fits onto a mandrel

D.A bit made from tungsten carbide metal with fluted cutting edges

E.Directional settings on an electric file that determine the rotation of the bit

F.The part of the electric file that the nail technician holds and that houses the bit

G.Rotating perfectly centered without wobble; essential for safe bit operation

H.The coarseness or fineness of an abrasive surface, measured numerically

I.A bit coated with natural or synthetic diamond particles for smoothing and refining

J.A cylindrical-shaped bit used for surface smoothing and bulk removal

Fill in the Blank

Complete each statement with the correct term or phrase.

Question 11 Fill in the Blank

The three main types of bits used in electric filing are carbide, diamond, and .

Question 12 Fill in the Blank

A lower grit number indicates a abrasive surface.

Question 13 Fill in the Blank

When using an electric file on a natural nail, the recommended maximum speed is typically RPM or lower to prevent heat damage.

Question 14 Fill in the Blank

Carbide bits have cutting edges and are used to shorten and shape nail enhancements.

Question 15 Fill in the Blank

A bit that wobbles or vibrates excessively is not and should be replaced immediately.

Question 16 Fill in the Blank

Sanding bands are -use items and must be discarded after each client.

Question 17 Fill in the Blank

The is the part of the electric file machine that holds the bit and is gripped by the technician.

Question 18 Fill in the Blank

When filing near the cuticle area, you should use a speed and a fine-grit bit to avoid damaging the natural nail or skin.

Multiple Choice

Select the best answer for each board-exam style question.

Question 19 Multiple Choice

Which type of bit is best for smoothing and refining the nail surface?

A. Carbide bit

B. Diamond bit

C. Sanding band

D. Mandrel

Question 20 Multiple Choice

What is the primary risk of using an electric file at excessively high speeds on a natural nail?

A. The bit will become dull

B. Friction heat can cause burning, pain, and nail damage

C. The polish will chip

D. The machine will overheat and shut off

Question 21 Multiple Choice

Sanding bands must be:

A. Cleaned and reused for each client

B. Discarded after each client use

C. Sterilized in an autoclave

D. Soaked in disinfectant for 10 minutes

Question 22 Multiple Choice

A 240-grit sanding band is considered:

A. Coarse

B. Medium

C. Fine

D. Extra coarse

Question 23 Multiple Choice

The correct way to hold the electric file handpiece is:

A. Like a hammer with a tight grip

B. Like a pen with a light, controlled grip

C. With both hands for stability

D. At a 90-degree angle to the nail

Question 24 Multiple Choice

Which bit shape is commonly used for cuticle area cleanup?

A. Barrel

B. Cone or flame

C. Large cylinder

D. Flat disc

Question 25 Multiple Choice

What should a nail technician do if a client reports a burning sensation during electric filing?

A. Continue filing but switch to a finer bit

B. Immediately stop, reduce speed, and check technique

C. Apply oil to cool the nail

D. Increase speed to finish quickly

Question 26 Multiple Choice

Carbide bits differ from diamond bits primarily in that carbide bits:

A. Are coated with abrasive particles

B. Have fluted cutting edges that remove product in shavings

C. Can only be used at low speeds

D. Are disposable after one use

True / False

Mark each statement as True or False.

Question 27 True / False

An electric file can be used to completely replace hand filing.

True

False

Question 28 True / False

A fine-grit bit should be used when working on the natural nail plate to avoid damage.

True

False

Question 29 True / False

Carbide bits create dust, while diamond bits create fine shavings.

True

False

Question 30 True / False

The handpiece should be held at a low angle to the nail for a safer, more controlled filing motion.

True

False

Question 31 True / False

Sanding bands can be cleaned and disinfected for reuse on the next client.

True

False

Question 32 True / False

Electric files should only be operated in the forward direction.

True

False

Question 33 True / False

Keeping the bit moving constantly across the nail surface helps prevent heat buildup.

True

False

Question 34 True / False

All electric file bits should be cleaned and disinfected or sterilized between clients.

True

False

Short Answer

Answer each question in 2-3 complete sentences.

Question 35 Short Answer

Explain the difference between a carbide bit and a diamond bit, including when each is best used.

Question 36 Short Answer

Describe three safety precautions a nail technician should follow when operating an electric file.

Question 37 Short Answer

Why is it important to understand grit levels when selecting sanding bands for different services?